KRR-Oxford / RSAComb

Re-implementation of the combined approach for CQ answering over RSA ontologies
https://www.cs.ox.ac.uk/isg/tools/RSAComb
Apache License 2.0
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DBpedia causes RDFox crash #10

Closed dyamon closed 3 years ago

dyamon commented 3 years ago

Trying to run RSAComb on DBpedia result in a crash with JRDFox reporting back a stack trace.

Here is an example ``` # # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007f87b73075ab, pid=3763, tid=0x00007f87b49c5640 # # JRE version: OpenJDK Runtime Environment (8.0_252-b09) (build 1.8.0_252-b09) # Java VM: OpenJDK 64-Bit Server VM (25.252-b09 mixed mode linux-amd64 compressed oops) # Derivative: IcedTea 3.16.0 # Distribution: Gentoo Base System release 2.6, package Gentoo icedtea-3.16.0 # Problematic frame: # C [libRDFox3103994948759367886.so+0x113e5ab] Stratum::getPatternIndexEx(PatternIndexType, unsigned int)+0x1b # # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # If you would like to submit a bug report, please include # instructions on how to reproduce the bug and visit: # https://icedtea.classpath.org/bugzilla # --------------- T H R E A D --------------- Current thread is native thread siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x00000000000000a0 Registers: RAX=0x00007f7a180ba890, RBX=0x00007f7a180ba820, RCX=0x00007f7a1c5cc498, RDX=0x000000048233b680 RSP=0x00007f87b49c3b60, RBP=0x00007f87b49c3ba0, RSI=0x0000000000000004, RDI=0x0000000000000000 R8 =0x0000000000000007, R9 =0x00007f7a184c6830, R10=0x0000000000000000, R11=0x00000000000000b0 R12=0x00000000000000c8, R13=0x0000000000000000, R14=0x00007f7a1c5cc458, R15=0x00007f7a1c5cb940 RIP=0x00007f87b73075ab, EFLAGS=0x0000000000010206, CSGSFS=0x002b000000000033, ERR=0x0000000000000004 TRAPNO=0x000000000000000e Top of Stack: (sp=0x00007f87b49c3b60) 0x00007f87b49c3b60: 000002bfb49c3ba0 00007f7a1c657b50 0x00007f87b49c3b70: 0000000000000000 0000000000000000 0x00007f87b49c3b80: 0000000000000000 00007f7a180ba820 0x00007f87b49c3b90: 00000000000000c8 00007f7a1c5cc458 0x00007f87b49c3ba0: 00007f7a285e2000 00007f87b72d6bec 0x00007f87b49c3bb0: 0000000000000000 00007f7a181aa930 0x00007f87b49c3bc0: 00007f7a285e2000 00007f7a181aab60 0x00007f87b49c3bd0: 0000000000000000 00007f7a1c5cc458 0x00007f87b49c3be0: 00007f7a1c5cb940 00007f87b72e6253 0x00007f87b49c3bf0: 00007f7a1c5cc428 00007f87b49c4d40 0x00007f87b49c3c00: 00007f87d8369ec0 00007f87b71ff4a5 0x00007f87b49c3c10: 0001000000000000 0000000000000000 0x00007f87b49c3c20: 0000000000000000 00007f7a180b9210 0x00007f87b49c3c30: 0000000000000000 00007f87d863ca08 0x00007f87b49c3c40: 0000000000000000 0000000000000000 0x00007f87b49c3c50: 0000000000000000 0000000000000000 0x00007f87b49c3c60: 00007f7a1cb6bbe8 00007f7a180b91e8 0x00007f87b49c3c70: 00007f87d8636178 0000000000000000 0x00007f87b49c3c80: 00007f87d863c900 00007f7a180ba820 0x00007f87b49c3c90: 00007f7a184c6980 00007f87b7e332e8 0x00007f87b49c3ca0: 00007f7a180ba8a8 00007f7a180ba820 0x00007f87b49c3cb0: 00007f87d863c8d0 0000000000000000 0x00007f87b49c3cc0: 00007f7a180f8550 00007f7a1c5cc430 0x00007f87b49c3cd0: 0000000000000000 0000000000000000 0x00007f87b49c3ce0: 0000000000000000 0000000000000000 0x00007f87b49c3cf0: 0000000000000000 0000000000000000 0x00007f87b49c3d00: 0000000000000000 0000000000000000 0x00007f87b49c3d10: 0000000000000000 0000000000000000 0x00007f87b49c3d20: 00007f87b7e33320 0000000000000000 0x00007f87b49c3d30: 00007f87d8635850 00007f87b62ae605 0x00007f87b49c3d40: 00007f87b7e33348 00007f87b65244db 0x00007f87b49c3d50: 00007f87d8635850 00007f87dd62ca06 Instructions: (pc=0x00007f87b73075ab) 0x00007f87b730758b: 00 00 00 00 00 55 89 d2 40 0f b6 f6 48 8d 14 52 0x00007f87b730759b: 48 89 e5 41 56 41 54 53 48 c1 e2 04 48 83 ec 28 0x00007f87b73075ab: 48 03 97 a0 00 00 00 48 8d 5c f2 08 48 8b 03 48 0x00007f87b73075bb: 85 c0 74 11 48 8d 65 e8 5b 41 5c 41 5e 5d c3 66 Register to memory mapping: RAX=0x00007f7a180ba890 is an unknown value RBX=0x00007f7a180ba820 is an unknown value RCX=0x00007f7a1c5cc498 is an unknown value RDX=0x000000048233b680 is an unknown value RSP=0x00007f87b49c3b60 is an unknown value RBP=0x00007f87b49c3ba0 is an unknown value RSI=0x0000000000000004 is an unknown value RDI=0x0000000000000000 is an unknown value R8 =0x0000000000000007 is an unknown value R9 =0x00007f7a184c6830 is an unknown value R10=0x0000000000000000 is an unknown value R11=0x00000000000000b0 is an unknown value R12=0x00000000000000c8 is an unknown value R13=0x0000000000000000 is an unknown value R14=0x00007f7a1c5cc458 is an unknown value R15=0x00007f7a1c5cb940 is an unknown value Stack: [0x00007f87b41c6000,0x00007f87b49c6000], sp=0x00007f87b49c3b60, free space=8182k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [libRDFox3103994948759367886.so+0x113e5ab] Stratum::getPatternIndexEx(PatternIndexType, unsigned int)+0x1b --------------- P R O C E S S --------------- VM state:not at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: None heap address: 0x0000000085600000, size: 1962 MB, Compressed Oops mode: 32-bit Narrow klass base: 0x0000000000000000, Narrow klass shift: 3 Compressed class space size: 1073741824 Address: 0x0000000100000000 Heap: PSYoungGen total 36864K, used 25003K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 62% used [0x00000000d7200000,0x00000000d8572e38,0x00000000d9100000) from space 5120K, 99% used [0x00000000d9100000,0x00000000d95f80e0,0x00000000d9600000) to space 5120K, 0% used [0x00000000d9600000,0x00000000d9600000,0x00000000d9b00000) ParOldGen total 84992K, used 2814K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 3% used [0x0000000085600000,0x00000000858bfa20,0x000000008a900000) Metaspace used 19878K, capacity 20920K, committed 21120K, reserved 1067008K class space used 2609K, capacity 2817K, committed 2944K, reserved 1048576K Card table byte_map: [0x00007f87c83bc000,0x00007f87c8792000] byte_map_base: 0x00007f87c7f91000 Marking Bits: (ParMarkBitMap*) 0x00007f87dd3e14a0 Begin Bits: [0x00007f87c4268000, 0x00007f87c6110000) End Bits: [0x00007f87c6110000, 0x00007f87c7fb8000) Polling page: 0x00007f87dd5fe000 CodeCache: size=245760Kb used=3189Kb max_used=3189Kb free=242571Kb bounds [0x00007f87c8b52000, 0x00007f87c8e72000, 0x00007f87d7b52000] total_blobs=1338 nmethods=951 adapters=310 compilation: enabled Compilation events (10 events): Event: 344.803 Thread 0x00007f87d80e1800 944 4 com.github.benmanes.caffeine.cache.AbstractLinkedDeque::add (6 bytes) Event: 344.804 Thread 0x00007f87d80e1800 nmethod 944 0x00007f87c8e64a10 code [0x00007f87c8e64b60, 0x00007f87c8e64cf8] Event: 344.817 Thread 0x00007f87d80de800 945 4 java.util.concurrent.locks.AbstractQueuedSynchronizer::release (33 bytes) Event: 344.819 Thread 0x00007f87d80de800 nmethod 945 0x00007f87c8e64650 code [0x00007f87c8e647a0, 0x00007f87c8e648e8] Event: 344.833 Thread 0x00007f87d80e3800 946 3 com.github.benmanes.caffeine.cache.BoundedLocalCache::reorderProbation (63 bytes) Event: 344.834 Thread 0x00007f87d80e3800 nmethod 946 0x00007f87c8e68610 code [0x00007f87c8e688a0, 0x00007f87c8e69de8] Event: 344.834 Thread 0x00007f87d80e3800 947 3 com.github.benmanes.caffeine.cache.WSMS::setMainProtectedWeightedSize (6 bytes) Event: 344.834 Thread 0x00007f87d80e3800 nmethod 947 0x00007f87c8e682d0 code [0x00007f87c8e68420, 0x00007f87c8e68570] Event: 346.800 Thread 0x00007f87d80e1800 951 4 com.github.benmanes.caffeine.cache.BaseMpscLinkedArrayQueue::poll (108 bytes) Event: 346.801 Thread 0x00007f87d80e1800 nmethod 951 0x00007f87c8e6d710 code [0x00007f87c8e6d860, 0x00007f87c8e6d978] GC Heap History (6 events): Event: 341.590 GC heap before {Heap before GC invocations=1 (full 0): PSYoungGen total 36864K, used 31744K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 100% used [0x00000000d7200000,0x00000000d9100000,0x00000000d9100000) from space 5120K, 0% used [0x00000000d9600000,0x00000000d9600000,0x00000000d9b00000) to space 5120K, 0% used [0x00000000d9100000,0x00000000d9100000,0x00000000d9600000) ParOldGen total 84992K, used 0K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 0% used [0x0000000085600000,0x0000000085600000,0x000000008a900000) Metaspace used 13940K, capacity 14332K, committed 14464K, reserved 1062912K class space used 1754K, capacity 1894K, committed 1920K, reserved 1048576K Event: 341.610 GC heap after Heap after GC invocations=1 (full 0): PSYoungGen total 36864K, used 5088K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 0% used [0x00000000d7200000,0x00000000d7200000,0x00000000d9100000) from space 5120K, 99% used [0x00000000d9100000,0x00000000d95f83d8,0x00000000d9600000) to space 5120K, 0% used [0x00000000d9600000,0x00000000d9600000,0x00000000d9b00000) ParOldGen total 84992K, used 2023K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 2% used [0x0000000085600000,0x00000000857f9c30,0x000000008a900000) Metaspace used 13940K, capacity 14332K, committed 14464K, reserved 1062912K class space used 1754K, capacity 1894K, committed 1920K, reserved 1048576K } Event: 346.255 GC heap before {Heap before GC invocations=2 (full 0): PSYoungGen total 36864K, used 36832K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 100% used [0x00000000d7200000,0x00000000d9100000,0x00000000d9100000) from space 5120K, 99% used [0x00000000d9100000,0x00000000d95f83d8,0x00000000d9600000) to space 5120K, 0% used [0x00000000d9600000,0x00000000d9600000,0x00000000d9b00000) ParOldGen total 84992K, used 2023K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 2% used [0x0000000085600000,0x00000000857f9c30,0x000000008a900000) Metaspace used 17266K, capacity 18124K, committed 18176K, reserved 1064960K class space used 2320K, capacity 2514K, committed 2560K, reserved 1048576K Event: 346.265 GC heap after Heap after GC invocations=2 (full 0): PSYoungGen total 36864K, used 5112K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 0% used [0x00000000d7200000,0x00000000d7200000,0x00000000d9100000) from space 5120K, 99% used [0x00000000d9600000,0x00000000d9afe260,0x00000000d9b00000) to space 5120K, 0% used [0x00000000d9100000,0x00000000d9100000,0x00000000d9600000) ParOldGen total 84992K, used 2190K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 2% used [0x0000000085600000,0x0000000085823bc8,0x000000008a900000) Metaspace used 17266K, capacity 18124K, committed 18176K, reserved 1064960K class space used 2320K, capacity 2514K, committed 2560K, reserved 1048576K } Event: 350.758 GC heap before {Heap before GC invocations=3 (full 0): PSYoungGen total 36864K, used 36856K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 99% used [0x00000000d7200000,0x00000000d90ffff0,0x00000000d9100000) from space 5120K, 99% used [0x00000000d9600000,0x00000000d9afe260,0x00000000d9b00000) to space 5120K, 0% used [0x00000000d9100000,0x00000000d9100000,0x00000000d9600000) ParOldGen total 84992K, used 2190K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 2% used [0x0000000085600000,0x0000000085823bc8,0x000000008a900000) Metaspace used 17945K, capacity 18954K, committed 19072K, reserved 1064960K class space used 2451K, capacity 2641K, committed 2688K, reserved 1048576K Event: 350.767 GC heap after Heap after GC invocations=3 (full 0): PSYoungGen total 36864K, used 5088K [0x00000000d7200000, 0x00000000d9b00000, 0x0000000100000000) eden space 31744K, 0% used [0x00000000d7200000,0x00000000d7200000,0x00000000d9100000) from space 5120K, 99% used [0x00000000d9100000,0x00000000d95f80e0,0x00000000d9600000) to space 5120K, 0% used [0x00000000d9600000,0x00000000d9600000,0x00000000d9b00000) ParOldGen total 84992K, used 2814K [0x0000000085600000, 0x000000008a900000, 0x00000000d7200000) object space 84992K, 3% used [0x0000000085600000,0x00000000858bfa20,0x000000008a900000) Metaspace used 17945K, capacity 18954K, committed 19072K, reserved 1064960K class space used 2451K, capacity 2641K, committed 2688K, reserved 1048576K } Deoptimization events (3 events): Event: 0.926 Thread 0x00007f87d800d000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f87c8d02d58 method=java.lang.String.indexOf([CII[CIII)I @ 134 Event: 0.980 Thread 0x00007f87d800d000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f87c8cf794c method=java.lang.String.replace(CC)Ljava/lang/String; @ 2 Event: 1.385 Thread 0x00007f87d800d000 Uncommon trap: reason=range_check action=make_not_entrant pc=0x00007f87c8e132b0 method=sun.reflect.generics.parser.SignatureParser.current()C @ 34 Classes redefined (0 events): No events Internal exceptions (10 events): Event: 348.440 Thread 0x00007f87d800d000 Exception (0x00000000d827bc60) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/interpreter/interpreterRuntime.cpp, line 371] Event: 348.442 Thread 0x00007f87d800d000 Exception (0x00000000d827f3d8) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/interpreter/interpreterRuntime.cpp, line 371] Event: 350.814 Thread 0x00007f87d800d000 Exception (0x00000000d72c3068) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/interpreter/interpreterRuntime.cpp, line 371] Event: 350.815 Thread 0x00007f87d800d000 Exception (0x00000000d72c5688) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/interpreter/interpreterRuntime.cpp, line 371] Event: 350.818 Thread 0x00007f87d800d000 Exception (0x00000000d72c8d08) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/interpreter/interpreterRuntime.cpp, line 371] Event: 350.820 Thread 0x00007f87d800d000 Exception (0x00000000d72cc480) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/interpreter/interpreterRuntime.cpp, line 371] Event: 350.847 Thread 0x00007f87d800d000 Exception (0x00000000d7337a98) thrown at [/var/ Event: 352.022 Thread 0x00007f87d800d000 Exception (0x00000000d7c28570) thrown at [/var/tmp/portage/dev-java/icedtea-3.16.0/work/icedtea-3.16.0/openjdk/hotspot/src/share/vm/prims/jni.cpp, line 710] Events (10 events): Event: 353.175 loading class scala/collection/immutable/Seq Event: 353.175 loading class scala/collection/immutable/Seq done Event: 353.175 loading class scala/collection/immutable/Seq Event: 353.175 loading class scala/collection/immutable/Seq done Event: 353.189 loading class tech/oxfordsemantic/jrdfox/logic/datalog/Rule Event: 353.189 loading class tech/oxfordsemantic/jrdfox/logic/datalog/Rule done Event: 353.190 loading class tech/oxfordsemantic/jrdfox/logic/datalog/Rule Event: 353.190 loading class tech/oxfordsemantic/jrdfox/logic/datalog/Rule done Event: 353.190 loading class scala/Function1 Event: 353.190 loading class scala/Function1 done Dynamic libraries: 85600000-8a900000 rw-p 00000000 00:00 0 8a900000-d7200000 ---p 00000000 00:00 0 d7200000-d9b00000 rw-p 00000000 00:00 0 d9b00000-100000000 ---p 00000000 00:00 0 100000000-1002e0000 rw-p 00000000 00:00 0 1002e0000-140000000 ---p 00000000 00:00 0 55aa70fec000-55aa70fed000 r--p 00000000 08:04 3828714 /opt/icedtea-bin-3.16.0/jre/bin/java 55aa70fed000-55aa70fee000 r-xp 00001000 08:04 3828714 /opt/icedtea-bin-3.16.0/jre/bin/java 55aa70fee000-55aa70fef000 r--p 00002000 08:04 3828714 /opt/icedtea-bin-3.16.0/jre/bin/java 55aa70fef000-55aa70ff0000 r--p 00002000 08:04 3828714 /opt/icedtea-bin-3.16.0/jre/bin/java 55aa70ff0000-55aa70ff1000 rw-p 00003000 08:04 3828714 /opt/icedtea-bin-3.16.0/jre/bin/java 55aa720ab000-55aa720cc000 rw-p 00000000 00:00 0 [heap] 7f7a10000000-7f7a1008e000 rw-p 00000000 00:00 0 7f7a1008e000-7f7a14000000 ---p 00000000 00:00 0 7f7a18000000-7f7a1862a000 rw-p 00000000 00:00 0 7f7a1862a000-7f7a1c000000 ---p 00000000 00:00 0 7f7a1c000000-7f7a1cb6e000 rw-p 00000000 00:00 0 7f7a1cb6e000-7f7a20000000 ---p 00000000 00:00 0 7f7a20000000-7f7a2008e000 rw-p 00000000 00:00 0 7f7a2008e000-7f7a24000000 ---p 00000000 00:00 0 7f7a24000000-7f7a28000000 rw-p 00000000 00:00 0 7f7a2856c000-7f7a289fe000 rw-p 00000000 00:00 0 7f7a28a02000-7f7a28a04000 rw-p 00000000 00:00 0 7f7a28a04000-7f7a28a0c000 ---p 00000000 00:00 0 7f7a28a0c000-7f7a28a0e000 rw-p 00000000 00:00 0 7f7a28a0e000-7f7a28a16000 ---p 00000000 00:00 0 7f7a28a16000-7f7a28a18000 rw-p 00000000 00:00 0 7f7a28a18000-7f7a28a20000 ---p 00000000 00:00 0 7f7a28a20000-7f7a28a22000 rw-p 00000000 00:00 0 7f7a28a22000-7f7a28a2a000 ---p 00000000 00:00 0 7f7a28a2a000-7f7a28a2d000 rw-p 00000000 00:00 0 7f7a28a2d000-7f7a4bece000 ---p 00000000 00:00 0 7f7a4bece000-7f7a4becf000 rw-p 00000000 00:00 0 7f7a4becf000-7f7b287cb000 ---p 00000000 00:00 0 7f7b287cb000-7f7b287cc000 rw-p 00000000 00:00 0 7f7b287cc000-7f7c050c8000 ---p 00000000 00:00 0 7f7c050c8000-7f7c050c9000 rw-p 00000000 00:00 0 7f7c050c9000-7f7ce19c5000 ---p 00000000 00:00 0 7f7ce19c5000-7f7ce19cd000 rw-p 00000000 00:00 0 7f7ce19cd000-7f7e9abc5000 ---p 00000000 00:00 0 7f7e9abc5000-7f7e9abcd000 rw-p 00000000 00:00 0 7f7e9abcd000-7f8053dc5000 ---p 00000000 00:00 0 7f8053dc5000-7f8053dcd000 rw-p 00000000 00:00 0 7f8053dcd000-7f820cfc5000 ---p 00000000 00:00 0 7f820cfc5000-7f820cfcd000 rw-p 00000000 00:00 0 7f820cfcd000-7f821ea1d000 ---p 00000000 00:00 0 7f821ea1d000-7f821ea35000 rw-p 00000000 00:00 0 7f821ea35000-7f82f25f5000 ---p 00000000 00:00 0 7f82f25f5000-7f82f260d000 rw-p 00000000 00:00 0 7f82f260d000-7f83c61cd000 ---p 00000000 00:00 0 7f83c61cd000-7f83c61eb000 rw-p 00000000 00:00 0 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4391632 /lib64/libpthread-2.33.so 7f87dd415000-7f87dd41a000 r--p 00015000 08:04 4391632 /lib64/libpthread-2.33.so 7f87dd41a000-7f87dd41b000 r--p 00019000 08:04 4391632 /lib64/libpthread-2.33.so 7f87dd41b000-7f87dd41c000 rw-p 0001a000 08:04 4391632 /lib64/libpthread-2.33.so 7f87dd41c000-7f87dd420000 rw-p 00000000 00:00 0 7f87dd420000-7f87dd421000 r--p 00000000 08:04 4392523 /lib64/libdl-2.33.so 7f87dd421000-7f87dd423000 r-xp 00001000 08:04 4392523 /lib64/libdl-2.33.so 7f87dd423000-7f87dd424000 r--p 00003000 08:04 4392523 /lib64/libdl-2.33.so 7f87dd424000-7f87dd425000 r--p 00003000 08:04 4392523 /lib64/libdl-2.33.so 7f87dd425000-7f87dd426000 rw-p 00004000 08:04 4392523 /lib64/libdl-2.33.so 7f87dd426000-7f87dd429000 r--p 00000000 08:04 4353887 /lib64/libz.so.1.2.11 7f87dd429000-7f87dd437000 r-xp 00003000 08:04 4353887 /lib64/libz.so.1.2.11 7f87dd437000-7f87dd43d000 r--p 00011000 08:04 4353887 /lib64/libz.so.1.2.11 7f87dd43d000-7f87dd43e000 ---p 00017000 08:04 4353887 /lib64/libz.so.1.2.11 7f87dd43e000-7f87dd43f000 r--p 00017000 08:04 4353887 /lib64/libz.so.1.2.11 7f87dd43f000-7f87dd440000 rw-p 00018000 08:04 4353887 /lib64/libz.so.1.2.11 7f87dd440000-7f87dd462000 r--p 00000000 08:04 4391599 /lib64/libc-2.33.so 7f87dd462000-7f87dd5a5000 r-xp 00022000 08:04 4391599 /lib64/libc-2.33.so 7f87dd5a5000-7f87dd5f0000 r--p 00165000 08:04 4391599 /lib64/libc-2.33.so 7f87dd5f0000-7f87dd5f4000 r--p 001af000 08:04 4391599 /lib64/libc-2.33.so 7f87dd5f4000-7f87dd5f6000 rw-p 001b3000 08:04 4391599 /lib64/libc-2.33.so 7f87dd5f6000-7f87dd5fc000 rw-p 00000000 00:00 0 7f87dd5fc000-7f87dd5fd000 r--p 00000000 08:04 4387178 /usr/share/locale/en_GB/LC_MESSAGES/libc.mo 7f87dd5fd000-7f87dd5fe000 rw-p 00000000 00:00 0 7f87dd5fe000-7f87dd5ff000 r--p 00000000 00:00 0 7f87dd5ff000-7f87dd603000 r--p 00000000 08:04 3828822 /opt/icedtea-bin-3.16.0/jre/lib/amd64/libverify.so 7f87dd603000-7f87dd60a000 r-xp 00004000 08:04 3828822 /opt/icedtea-bin-3.16.0/jre/lib/amd64/libverify.so 7f87dd60a000-7f87dd60c000 r--p 0000b000 08:04 3828822 /opt/icedtea-bin-3.16.0/jre/lib/amd64/libverify.so 7f87dd60c000-7f87dd60d000 ---p 0000d000 08:04 3828822 /opt/icedtea-bin-3.16.0/jre/lib/amd64/libverify.so 7f87dd60d000-7f87dd60f000 r--p 0000d000 08:04 3828822 /opt/icedtea-bin-3.16.0/jre/lib/amd64/libverify.so 7f87dd60f000-7f87dd610000 rw-p 0000f000 08:04 3828822 /opt/icedtea-bin-3.16.0/jre/lib/amd64/libverify.so 7f87dd610000-7f87dd612000 r--p 00000000 08:04 3828827 /opt/icedtea-bin-3.16.0/jre/lib/amd64/jli/libjli.so 7f87dd612000-7f87dd61b000 r-xp 00002000 08:04 3828827 /opt/icedtea-bin-3.16.0/jre/lib/amd64/jli/libjli.so 7f87dd61b000-7f87dd61e000 r--p 0000b000 08:04 3828827 /opt/icedtea-bin-3.16.0/jre/lib/amd64/jli/libjli.so 7f87dd61e000-7f87dd61f000 r--p 0000d000 08:04 3828827 /opt/icedtea-bin-3.16.0/jre/lib/amd64/jli/libjli.so 7f87dd61f000-7f87dd620000 rw-p 0000e000 08:04 3828827 /opt/icedtea-bin-3.16.0/jre/lib/amd64/jli/libjli.so 7f87dd620000-7f87dd622000 rw-p 00000000 00:00 0 7f87dd622000-7f87dd623000 r--p 00000000 08:04 4387024 /lib64/ld-2.33.so 7f87dd623000-7f87dd647000 r-xp 00001000 08:04 4387024 /lib64/ld-2.33.so 7f87dd647000-7f87dd651000 r--p 00025000 08:04 4387024 /lib64/ld-2.33.so 7f87dd651000-7f87dd653000 r--p 0002e000 08:04 4387024 /lib64/ld-2.33.so 7f87dd653000-7f87dd655000 rw-p 00030000 08:04 4387024 /lib64/ld-2.33.so 7fff27794000-7fff277b6000 rw-p 00000000 00:00 0 [stack] 7fff277db000-7fff277df000 r--p 00000000 00:00 0 [vvar] 7fff277df000-7fff277e1000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 --xp 00000000 00:00 0 [vsyscall] ```

Using jdb to inspect the issue it seems like the crash happens when trying to load the datalog rules (DBpedia TBox) to RDFox. Printing the rules just before the crash results in a list of Datalog rules with some syntactic errors.

Here they are Note the missing `>` on some atoms. ``` [?X]. [?X] :- [?X] :- [?X], [?X], [?X]. [?X]. [?X] :- [?X]. [?X]. [?X]. [?X] :- [?I00206,?X], owl:Thing[?I00206]. [?I00265,?X], owl:Thing[?I00265]. [?I00401,?X], owl:Thing[?I00401]. [?I00433,?X], owl:Thing[?I00433]. [?I00518,?X], owl:Thing[?I00518]. [?X] :- [?X] :- [?X] :- [?X,?I00648], owl:Thing[?I00648]. [?X,?I00656], owl:Thing[?I00656]. [?X,?I00685], owl:Thing[?I00685]. [?X,?I00688], owl:Thing[?I00688]. [?X,?I00738], owl:Thing[?I00738]. [?X,?I00754], owl:Thing[?I00754]. [?X,?I00912], owl:Thing[?I00912]. [?X] :- [?X] :- [?X,?I01261], owl:Thing[?I01261]. [?X,?I01278], owl:Thing[?I01278]. ``` Note the broken `:-` symbol printed as `:` ``` [?X] : [?X]. owl:Thing[?X] : [?X]. [?X] : [?X]. [?X] : [?I00108,?X], owl:Thing[?I00108]. [?X] : [?I00468,?X], owl:Thing[?I00468]. [?X] : [?I00571,?X], owl:Thing[?I00571]. [?X] : [?I00575,?X], owl:Thing[?I00575]. [?X] : [?I00624,?X], owl:Thing[?I00624]. [?X] : [?X,?I00782], owl:Thing[?I00782]. [?X] : [?X,?I00849], owl:Thing[?I00849]. [?X] : [?X,?I00959], owl:Thing[?I00959]. [?X] : [?X,?I01111], owl:Thing[?I01111]. [?X] : [?X,?I01163], owl:Thing[?I01163]. [?X] : [?X,?I01190], owl:Thing[?I01190]. [?X] : [?X,?I01289], owl:Thing[?I01289]. ```

This is hardly a bug in our code since we are using Rule.toString(Prefixes)

dyamon commented 3 years ago

The problem is fixed updating to RDFox 5.2.1 (0f52fea098088d8e90410b97213f60c52407f8ff).