./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:53,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:53,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:46:53,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:53,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:53,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:53,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:53,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:53,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:53,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:53,866 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:53,868 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:53,868 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:53,870 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:53,870 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:53,871 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:53,871 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:53,872 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:53,872 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:53,873 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:53,874 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:53,874 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:53,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:46:53,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:46:53,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:53,877 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:53,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:53,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:53,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:53,879 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:46:53,880 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:46:53,881 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:46:53,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:53,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:46:53,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:53,882 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:53,882 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:53,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:53,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:53,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:53,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:53,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:53,884 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:53,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:53,885 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:53,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:53,886 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2023-11-12 00:46:54,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:54,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:54,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:54,266 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:54,267 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:54,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2023-11-12 00:46:57,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:57,607 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:57,608 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2023-11-12 00:46:57,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data/c8a95716d/cc474fbfe38b4eb9856a259f24134be4/FLAG5bf6f2a69 [2023-11-12 00:46:57,640 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data/c8a95716d/cc474fbfe38b4eb9856a259f24134be4 [2023-11-12 00:46:57,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:57,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:57,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:57,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:57,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:57,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:57" (1/1) ... [2023-11-12 00:46:57,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34396c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:57, skipping insertion in model container [2023-11-12 00:46:57,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:57" (1/1) ... [2023-11-12 00:46:57,715 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:58,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:58,052 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-12 00:46:58,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4de9817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58, skipping insertion in model container [2023-11-12 00:46:58,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:58,054 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:46:58,057 INFO L158 Benchmark]: Toolchain (without parser) took 406.62ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 74.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:46:58,058 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:46:58,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.85ms. Allocated memory is still 134.2MB. Free memory was 85.2MB in the beginning and 74.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:46:58,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.85ms. Allocated memory is still 134.2MB. Free memory was 85.2MB in the beginning and 74.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 215]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:00,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:00,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:47:00,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:00,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:00,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:00,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:00,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:00,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:00,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:00,853 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:00,853 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:00,854 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:00,856 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:00,856 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:00,857 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:00,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:47:00,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:47:00,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:00,861 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:00,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:00,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:00,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:00,863 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:47:00,863 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:47:00,864 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:47:00,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:00,865 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:00,865 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:00,866 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:00,867 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:47:00,868 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:00,868 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:00,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:00,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:00,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:00,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:00,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:00,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:00,871 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:00,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:00,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:00,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:00,872 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2023-11-12 00:47:01,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:01,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:01,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:01,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:01,359 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:01,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2023-11-12 00:47:04,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:04,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:04,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2023-11-12 00:47:04,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data/73718f17b/9e707c7bac884a999e06070321f29a4d/FLAG8e31b6dc7 [2023-11-12 00:47:04,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/data/73718f17b/9e707c7bac884a999e06070321f29a4d [2023-11-12 00:47:04,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:04,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:04,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:04,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:04,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:04,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:04" (1/1) ... [2023-11-12 00:47:04,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24019f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:04, skipping insertion in model container [2023-11-12 00:47:04,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:04" (1/1) ... [2023-11-12 00:47:05,023 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:05,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:05,345 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:47:05,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:05,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:05,426 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:05,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:05,511 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:47:05,515 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:47:05,522 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:05,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05 WrapperNode [2023-11-12 00:47:05,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:05,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:05,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:05,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:05,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,640 INFO L138 Inliner]: procedures = 28, calls = 94, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 469 [2023-11-12 00:47:05,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:05,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:05,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:05,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:05,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:05,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:05,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:05,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:05,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (1/1) ... [2023-11-12 00:47:05,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:05,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:05,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:05,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ab1215-fc60-4978-a976-d6022f5b1df4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:47:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:47:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:47:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:47:05,827 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:47:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:47:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:47:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:47:05,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:47:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 00:47:05,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 00:47:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:47:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:47:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:47:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:05,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:47:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:47:05,836 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:47:05,999 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:06,001 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:07,243 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:07,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:07,688 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-12 00:47:07,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:07 BoogieIcfgContainer [2023-11-12 00:47:07,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:07,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:07,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:07,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:07,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:04" (1/3) ... [2023-11-12 00:47:07,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5a69b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:07, skipping insertion in model container [2023-11-12 00:47:07,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:05" (2/3) ... [2023-11-12 00:47:07,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5a69b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:07, skipping insertion in model container [2023-11-12 00:47:07,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:07" (3/3) ... [2023-11-12 00:47:07,705 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2023-11-12 00:47:07,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:07,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-12 00:47:07,726 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:47:07,902 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 00:47:07,960 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:47:07,994 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 391 places, 415 transitions, 858 flow [2023-11-12 00:47:07,997 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 391 places, 415 transitions, 858 flow [2023-11-12 00:47:07,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 391 places, 415 transitions, 858 flow [2023-11-12 00:47:08,154 INFO L124 PetriNetUnfolderBase]: 37/411 cut-off events. [2023-11-12 00:47:08,154 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 00:47:08,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 411 events. 37/411 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 480 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 348. Up to 8 conditions per place. [2023-11-12 00:47:08,172 INFO L119 LiptonReduction]: Number of co-enabled transitions 10736