./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:09:32,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:09:32,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 20:09:32,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:09:32,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:09:32,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:09:32,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:09:32,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:09:32,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:09:32,886 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:09:32,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:09:32,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:09:32,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:09:32,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:09:32,887 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:09:32,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:09:32,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:09:32,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:09:32,888 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:09:32,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:09:32,889 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:09:32,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:09:32,890 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:32,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:32,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:32,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:09:32,892 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2024-11-27 20:09:33,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:09:33,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:09:33,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:09:33,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:09:33,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:09:33,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2024-11-27 20:09:36,160 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/b5ae1e69a/017c2bc818d049638f99263e945dd954/FLAG4c230bc93 [2024-11-27 20:09:36,611 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:09:36,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2024-11-27 20:09:36,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/b5ae1e69a/017c2bc818d049638f99263e945dd954/FLAG4c230bc93 [2024-11-27 20:09:36,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/b5ae1e69a/017c2bc818d049638f99263e945dd954 [2024-11-27 20:09:36,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:09:36,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:09:36,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:36,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:09:36,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:09:36,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:36" (1/1) ... [2024-11-27 20:09:36,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d38d7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:36, skipping insertion in model container [2024-11-27 20:09:36,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:36" (1/1) ... [2024-11-27 20:09:36,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:09:37,441 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:37,458 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:37,467 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:37,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:37,504 ERROR L321 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) [2024-11-27 20:09:37,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b6912ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:37, skipping insertion in model container [2024-11-27 20:09:37,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:37,505 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-27 20:09:37,507 INFO L158 Benchmark]: Toolchain (without parser) took 767.55ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 71.5MB in the end (delta: 18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:09:37,509 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:09:37,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.93ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 71.5MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:09:37,511 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.93ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 71.5MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:09:40,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:09:40,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-27 20:09:40,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:09:40,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:09:40,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:09:40,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:09:40,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:09:40,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:09:40,275 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:09:40,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:09:40,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:09:40,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:09:40,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:09:40,277 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:09:40,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:09:40,277 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:09:40,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:09:40,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:09:40,279 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:09:40,280 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:40,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:40,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:09:40,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:40,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:40,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:40,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:09:40,283 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2024-11-27 20:09:40,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:09:40,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:09:40,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:09:40,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:09:40,672 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:09:40,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2024-11-27 20:09:43,615 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/68a4bf503/db78f8c3720e479c87a8c2b2cabbff7e/FLAG57eef13b4 [2024-11-27 20:09:44,014 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:09:44,015 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2024-11-27 20:09:44,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/68a4bf503/db78f8c3720e479c87a8c2b2cabbff7e/FLAG57eef13b4 [2024-11-27 20:09:44,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/data/68a4bf503/db78f8c3720e479c87a8c2b2cabbff7e [2024-11-27 20:09:44,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:09:44,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:09:44,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:44,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:09:44,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:09:44,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:44,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e910ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44, skipping insertion in model container [2024-11-27 20:09:44,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:44,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:09:44,597 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:44,616 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:44,630 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:44,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:44,672 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-27 20:09:44,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:09:44,770 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:44,778 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:44,783 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:09:44,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:44,823 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:09:44,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:44,961 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:09:44,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44 WrapperNode [2024-11-27 20:09:44,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:44,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:09:44,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:09:44,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:09:44,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:44,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,025 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2024-11-27 20:09:45,025 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:09:45,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:09:45,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:09:45,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:09:45,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,070 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-11-27 20:09:45,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,087 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:09:45,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:09:45,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:09:45,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:09:45,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (1/1) ... [2024-11-27 20:09:45,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:45,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:45,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:09:45,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:09:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 20:09:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 20:09:45,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-27 20:09:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-27 20:09:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-27 20:09:45,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:09:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:09:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:09:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 20:09:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 20:09:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-27 20:09:45,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:09:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:09:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 20:09:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:09:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:09:45,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:09:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:09:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:09:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:09:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:09:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:09:45,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:09:45,189 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:09:45,599 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:09:45,601 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:09:46,285 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:09:46,286 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:09:46,572 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:09:46,572 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:09:46,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:46 BoogieIcfgContainer [2024-11-27 20:09:46,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:09:46,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:09:46,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:09:46,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:09:46,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:09:44" (1/3) ... [2024-11-27 20:09:46,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f74082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:09:46, skipping insertion in model container [2024-11-27 20:09:46,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:44" (2/3) ... [2024-11-27 20:09:46,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f74082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:09:46, skipping insertion in model container [2024-11-27 20:09:46,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:46" (3/3) ... [2024-11-27 20:09:46,585 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2024-11-27 20:09:46,601 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:09:46,603 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_3-container_of.i that has 2 procedures, 100 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2024-11-27 20:09:46,603 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:09:46,697 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 20:09:46,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 125 transitions, 264 flow [2024-11-27 20:09:46,810 INFO L124 PetriNetUnfolderBase]: 14/158 cut-off events. [2024-11-27 20:09:46,812 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:09:46,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 158 events. 14/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 534 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 84. Up to 4 conditions per place. [2024-11-27 20:09:46,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 125 transitions, 264 flow [2024-11-27 20:09:46,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 123 transitions, 258 flow [2024-11-27 20:09:46,838 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:09:46,856 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29ed780b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:09:46,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-27 20:09:46,863 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:09:46,864 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-27 20:09:46,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:09:46,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:46,865 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 20:09:46,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:09:46,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:46,871 INFO L85 PathProgramCache]: Analyzing trace with hash 557403, now seen corresponding path program 1 times [2024-11-27 20:09:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:46,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609143390] [2024-11-27 20:09:46,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:46,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:46,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:46,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:46,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:09:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:47,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:09:47,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:47,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-27 20:09:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:47,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:47,163 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:47,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609143390] [2024-11-27 20:09:47,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609143390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:47,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:47,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:09:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199122132] [2024-11-27 20:09:47,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:47,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:09:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:47,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:09:47,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:09:47,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 125 [2024-11-27 20:09:47,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 123 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:47,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:09:47,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 125 [2024-11-27 20:09:47,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:09:50,151 INFO L124 PetriNetUnfolderBase]: 7867/16174 cut-off events. [2024-11-27 20:09:50,152 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-27 20:09:50,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28480 conditions, 16174 events. 7867/16174 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 148472 event pairs, 4199 based on Foata normal form. 792/10803 useless extension candidates. Maximal degree in co-relation 28239. Up to 6584 conditions per place. [2024-11-27 20:09:50,271 INFO L140 encePairwiseOnDemand]: 109/125 looper letters, 90 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2024-11-27 20:09:50,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 131 transitions, 458 flow [2024-11-27 20:09:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:09:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:09:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2024-11-27 20:09:50,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6106666666666667 [2024-11-27 20:09:50,287 INFO L175 Difference]: Start difference. First operand has 119 places, 123 transitions, 258 flow. Second operand 3 states and 229 transitions. [2024-11-27 20:09:50,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 131 transitions, 458 flow [2024-11-27 20:09:50,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 131 transitions, 450 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 20:09:50,301 INFO L231 Difference]: Finished difference. Result has 107 places, 105 transitions, 218 flow [2024-11-27 20:09:50,303 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=107, PETRI_TRANSITIONS=105} [2024-11-27 20:09:50,308 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -12 predicate places. [2024-11-27 20:09:50,308 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 105 transitions, 218 flow [2024-11-27 20:09:50,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:50,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:50,308 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 20:09:50,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:50,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:50,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:09:50,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 557404, now seen corresponding path program 1 times [2024-11-27 20:09:50,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:50,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006191281] [2024-11-27 20:09:50,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:50,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:50,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:50,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:50,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:09:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:50,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:09:50,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:50,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:09:50,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:50,729 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:50,729 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:50,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006191281] [2024-11-27 20:09:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006191281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:50,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:09:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598470789] [2024-11-27 20:09:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:50,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:09:50,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:50,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:09:50,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:09:50,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 125 [2024-11-27 20:09:50,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 105 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:50,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:09:50,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 125 [2024-11-27 20:09:50,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:09:52,961 INFO L124 PetriNetUnfolderBase]: 6411/13932 cut-off events. [2024-11-27 20:09:52,961 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-27 20:09:52,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24164 conditions, 13932 events. 6411/13932 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 132185 event pairs, 2743 based on Foata normal form. 1/9232 useless extension candidates. Maximal degree in co-relation 8831. Up to 5674 conditions per place. [2024-11-27 20:09:53,029 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 85 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2024-11-27 20:09:53,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 125 transitions, 432 flow [2024-11-27 20:09:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:09:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:09:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-27 20:09:53,033 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.584 [2024-11-27 20:09:53,034 INFO L175 Difference]: Start difference. First operand has 107 places, 105 transitions, 218 flow. Second operand 3 states and 219 transitions. [2024-11-27 20:09:53,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 125 transitions, 432 flow [2024-11-27 20:09:53,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 125 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:09:53,051 INFO L231 Difference]: Finished difference. Result has 101 places, 99 transitions, 206 flow [2024-11-27 20:09:53,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=101, PETRI_TRANSITIONS=99} [2024-11-27 20:09:53,053 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -18 predicate places. [2024-11-27 20:09:53,053 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 99 transitions, 206 flow [2024-11-27 20:09:53,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:53,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:53,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-27 20:09:53,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:53,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:53,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:09:53,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash 17277970, now seen corresponding path program 1 times [2024-11-27 20:09:53,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511117378] [2024-11-27 20:09:53,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:53,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:53,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:53,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:53,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:09:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:53,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:09:53,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:53,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:53,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:53,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511117378] [2024-11-27 20:09:53,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511117378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:53,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:53,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:09:53,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26479221] [2024-11-27 20:09:53,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:53,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:09:53,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:53,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:09:53,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:09:53,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 125 [2024-11-27 20:09:53,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 99 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:53,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:09:53,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 125 [2024-11-27 20:09:53,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:09:55,030 INFO L124 PetriNetUnfolderBase]: 6775/12978 cut-off events. [2024-11-27 20:09:55,030 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-11-27 20:09:55,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23772 conditions, 12978 events. 6775/12978 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 109603 event pairs, 6409 based on Foata normal form. 0/8290 useless extension candidates. Maximal degree in co-relation 8831. Up to 10016 conditions per place. [2024-11-27 20:09:55,087 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 85 selfloop transitions, 3 changer transitions 2/126 dead transitions. [2024-11-27 20:09:55,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 126 transitions, 438 flow [2024-11-27 20:09:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:09:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:09:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-27 20:09:55,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.584 [2024-11-27 20:09:55,092 INFO L175 Difference]: Start difference. First operand has 101 places, 99 transitions, 206 flow. Second operand 3 states and 219 transitions. [2024-11-27 20:09:55,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 126 transitions, 438 flow [2024-11-27 20:09:55,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 126 transitions, 434 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:09:55,107 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 211 flow [2024-11-27 20:09:55,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2024-11-27 20:09:55,109 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -17 predicate places. [2024-11-27 20:09:55,110 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 211 flow [2024-11-27 20:09:55,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:55,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:55,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:55,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:55,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:55,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:09:55,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:55,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1608668968, now seen corresponding path program 1 times [2024-11-27 20:09:55,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:55,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1392149075] [2024-11-27 20:09:55,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:55,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:55,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:55,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:55,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:09:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:55,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:09:55,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:55,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:55,514 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392149075] [2024-11-27 20:09:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392149075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:09:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840776454] [2024-11-27 20:09:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:55,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:55,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:55,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:55,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:55,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 125 [2024-11-27 20:09:55,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:55,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:09:55,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 125 [2024-11-27 20:09:55,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:09:57,277 INFO L124 PetriNetUnfolderBase]: 7138/13870 cut-off events. [2024-11-27 20:09:57,278 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-27 20:09:57,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25426 conditions, 13870 events. 7138/13870 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 119490 event pairs, 2743 based on Foata normal form. 0/10016 useless extension candidates. Maximal degree in co-relation 24096. Up to 5671 conditions per place. [2024-11-27 20:09:57,340 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 112 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2024-11-27 20:09:57,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 539 flow [2024-11-27 20:09:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:09:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2024-11-27 20:09:57,342 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.524 [2024-11-27 20:09:57,342 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 211 flow. Second operand 4 states and 262 transitions. [2024-11-27 20:09:57,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 145 transitions, 539 flow [2024-11-27 20:09:57,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 145 transitions, 528 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-27 20:09:57,376 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 200 flow [2024-11-27 20:09:57,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2024-11-27 20:09:57,377 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -22 predicate places. [2024-11-27 20:09:57,377 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 200 flow [2024-11-27 20:09:57,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:57,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:57,378 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:57,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:09:57,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:57,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:09:57,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:57,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1608668967, now seen corresponding path program 1 times [2024-11-27 20:09:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:57,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132459383] [2024-11-27 20:09:57,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:57,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:57,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:57,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:57,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:09:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:57,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:09:57,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:57,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:09:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:57,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:57,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:57,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132459383] [2024-11-27 20:09:57,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132459383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:57,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:57,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:09:57,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222002493] [2024-11-27 20:09:57,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:57,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:09:57,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:57,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:09:57,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:09:57,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 125 [2024-11-27 20:09:57,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:57,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:09:57,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 125 [2024-11-27 20:09:57,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:09:58,909 INFO L124 PetriNetUnfolderBase]: 6410/11764 cut-off events. [2024-11-27 20:09:58,909 INFO L125 PetriNetUnfolderBase]: For 394/394 co-relation queries the response was YES. [2024-11-27 20:09:58,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22209 conditions, 11764 events. 6410/11764 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 92379 event pairs, 5291 based on Foata normal form. 394/8542 useless extension candidates. Maximal degree in co-relation 8831. Up to 8270 conditions per place. [2024-11-27 20:09:58,943 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 97 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2024-11-27 20:09:58,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 126 transitions, 468 flow [2024-11-27 20:09:58,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:09:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:09:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-27 20:09:58,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5813333333333334 [2024-11-27 20:09:58,945 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 200 flow. Second operand 3 states and 218 transitions. [2024-11-27 20:09:58,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 126 transitions, 468 flow [2024-11-27 20:09:58,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 126 transitions, 456 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 20:09:58,954 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 211 flow [2024-11-27 20:09:58,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-11-27 20:09:58,955 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -22 predicate places. [2024-11-27 20:09:58,955 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 211 flow [2024-11-27 20:09:58,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:58,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:09:58,955 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:58,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:09:59,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:59,156 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:09:59,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1751356453, now seen corresponding path program 1 times [2024-11-27 20:09:59,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:09:59,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087942713] [2024-11-27 20:09:59,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:59,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:59,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:59,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:09:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:59,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:09:59,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:59,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:59,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:09:59,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087942713] [2024-11-27 20:09:59,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087942713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:59,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:59,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:09:59,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396667202] [2024-11-27 20:09:59,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:59,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:09:59,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:09:59,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:09:59,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:09:59,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 125 [2024-11-27 20:09:59,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:59,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:09:59,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 125 [2024-11-27 20:09:59,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:01,436 INFO L124 PetriNetUnfolderBase]: 5360/10285 cut-off events. [2024-11-27 20:10:01,436 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-27 20:10:01,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19419 conditions, 10285 events. 5360/10285 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 79542 event pairs, 925 based on Foata normal form. 0/7734 useless extension candidates. Maximal degree in co-relation 14354. Up to 3335 conditions per place. [2024-11-27 20:10:01,464 INFO L140 encePairwiseOnDemand]: 113/125 looper letters, 168 selfloop transitions, 13 changer transitions 1/213 dead transitions. [2024-11-27 20:10:01,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 213 transitions, 826 flow [2024-11-27 20:10:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:10:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 20:10:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 533 transitions. [2024-11-27 20:10:01,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.533 [2024-11-27 20:10:01,467 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 211 flow. Second operand 8 states and 533 transitions. [2024-11-27 20:10:01,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 213 transitions, 826 flow [2024-11-27 20:10:01,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 213 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:01,495 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 299 flow [2024-11-27 20:10:01,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=299, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2024-11-27 20:10:01,496 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -12 predicate places. [2024-11-27 20:10:01,496 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 299 flow [2024-11-27 20:10:01,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:01,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:01,496 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:01,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:10:01,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:01,697 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:01,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1751356454, now seen corresponding path program 1 times [2024-11-27 20:10:01,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:01,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87764621] [2024-11-27 20:10:01,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:01,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:01,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:01,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:01,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:10:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:01,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:10:01,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:01,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:10:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:01,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:01,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87764621] [2024-11-27 20:10:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87764621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:01,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:01,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:10:01,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895215339] [2024-11-27 20:10:01,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:01,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:01,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:01,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:01,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:10:02,280 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 125 [2024-11-27 20:10:02,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 45.6) internal successors, (228), 5 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:02,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:02,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 125 [2024-11-27 20:10:02,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:03,578 INFO L124 PetriNetUnfolderBase]: 3897/7672 cut-off events. [2024-11-27 20:10:03,578 INFO L125 PetriNetUnfolderBase]: For 2576/2597 co-relation queries the response was YES. [2024-11-27 20:10:03,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15979 conditions, 7672 events. 3897/7672 cut-off events. For 2576/2597 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 58528 event pairs, 203 based on Foata normal form. 794/7231 useless extension candidates. Maximal degree in co-relation 14516. Up to 3099 conditions per place. [2024-11-27 20:10:03,599 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 149 selfloop transitions, 10 changer transitions 2/193 dead transitions. [2024-11-27 20:10:03,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 193 transitions, 821 flow [2024-11-27 20:10:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:10:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 20:10:03,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 470 transitions. [2024-11-27 20:10:03,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5371428571428571 [2024-11-27 20:10:03,602 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 299 flow. Second operand 7 states and 470 transitions. [2024-11-27 20:10:03,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 193 transitions, 821 flow [2024-11-27 20:10:03,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 193 transitions, 821 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:10:03,628 INFO L231 Difference]: Finished difference. Result has 116 places, 105 transitions, 352 flow [2024-11-27 20:10:03,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=352, PETRI_PLACES=116, PETRI_TRANSITIONS=105} [2024-11-27 20:10:03,629 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2024-11-27 20:10:03,629 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 105 transitions, 352 flow [2024-11-27 20:10:03,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.6) internal successors, (228), 5 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:03,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:03,629 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:03,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:03,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:03,830 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:03,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1802651144, now seen corresponding path program 1 times [2024-11-27 20:10:03,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:03,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484482772] [2024-11-27 20:10:03,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:03,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:03,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:03,833 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:03,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:10:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:03,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:10:03,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:03,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-27 20:10:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:04,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:04,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:04,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484482772] [2024-11-27 20:10:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484482772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:04,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:04,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:10:04,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020047793] [2024-11-27 20:10:04,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:04,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:04,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:04,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:10:04,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 125 [2024-11-27 20:10:04,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 105 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:04,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:04,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 125 [2024-11-27 20:10:04,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:05,612 INFO L124 PetriNetUnfolderBase]: 3438/6716 cut-off events. [2024-11-27 20:10:05,612 INFO L125 PetriNetUnfolderBase]: For 4667/4667 co-relation queries the response was YES. [2024-11-27 20:10:05,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15048 conditions, 6716 events. 3438/6716 cut-off events. For 4667/4667 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 48813 event pairs, 191 based on Foata normal form. 0/5871 useless extension candidates. Maximal degree in co-relation 13724. Up to 1941 conditions per place. [2024-11-27 20:10:05,632 INFO L140 encePairwiseOnDemand]: 113/125 looper letters, 158 selfloop transitions, 17 changer transitions 0/207 dead transitions. [2024-11-27 20:10:05,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 207 transitions, 1043 flow [2024-11-27 20:10:05,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:10:05,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 20:10:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 522 transitions. [2024-11-27 20:10:05,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.522 [2024-11-27 20:10:05,634 INFO L175 Difference]: Start difference. First operand has 116 places, 105 transitions, 352 flow. Second operand 8 states and 522 transitions. [2024-11-27 20:10:05,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 207 transitions, 1043 flow [2024-11-27 20:10:05,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 207 transitions, 1013 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 20:10:05,647 INFO L231 Difference]: Finished difference. Result has 122 places, 114 transitions, 455 flow [2024-11-27 20:10:05,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=455, PETRI_PLACES=122, PETRI_TRANSITIONS=114} [2024-11-27 20:10:05,648 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 3 predicate places. [2024-11-27 20:10:05,648 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 114 transitions, 455 flow [2024-11-27 20:10:05,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:05,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:05,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:05,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:10:05,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:05,852 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:05,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:05,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1802651145, now seen corresponding path program 1 times [2024-11-27 20:10:05,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:05,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046312235] [2024-11-27 20:10:05,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:05,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:05,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:05,855 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:05,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:10:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:06,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:10:06,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:06,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:10:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:06,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:06,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046312235] [2024-11-27 20:10:06,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046312235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:06,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:06,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:10:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035536570] [2024-11-27 20:10:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:06,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:06,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:06,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:10:06,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 125 [2024-11-27 20:10:06,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 455 flow. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:06,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:06,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 125 [2024-11-27 20:10:06,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:07,563 INFO L124 PetriNetUnfolderBase]: 2519/5013 cut-off events. [2024-11-27 20:10:07,563 INFO L125 PetriNetUnfolderBase]: For 4984/5000 co-relation queries the response was YES. [2024-11-27 20:10:07,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12437 conditions, 5013 events. 2519/5013 cut-off events. For 4984/5000 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 34601 event pairs, 342 based on Foata normal form. 536/5407 useless extension candidates. Maximal degree in co-relation 11357. Up to 2291 conditions per place. [2024-11-27 20:10:07,579 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 143 selfloop transitions, 14 changer transitions 1/190 dead transitions. [2024-11-27 20:10:07,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 190 transitions, 1021 flow [2024-11-27 20:10:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:10:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 20:10:07,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 453 transitions. [2024-11-27 20:10:07,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5177142857142857 [2024-11-27 20:10:07,582 INFO L175 Difference]: Start difference. First operand has 122 places, 114 transitions, 455 flow. Second operand 7 states and 453 transitions. [2024-11-27 20:10:07,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 190 transitions, 1021 flow [2024-11-27 20:10:07,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 190 transitions, 1018 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:10:07,593 INFO L231 Difference]: Finished difference. Result has 130 places, 117 transitions, 526 flow [2024-11-27 20:10:07,593 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=526, PETRI_PLACES=130, PETRI_TRANSITIONS=117} [2024-11-27 20:10:07,594 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 11 predicate places. [2024-11-27 20:10:07,594 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 117 transitions, 526 flow [2024-11-27 20:10:07,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:07,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:07,594 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:07,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:07,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:07,795 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:07,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1800086855, now seen corresponding path program 1 times [2024-11-27 20:10:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:07,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679910789] [2024-11-27 20:10:07,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:07,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:07,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:07,798 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:07,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:10:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:07,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:10:07,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:07,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:07,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:07,965 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:07,966 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:07,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-27 20:10:08,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:08,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2024-11-27 20:10:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:08,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:08,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:08,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679910789] [2024-11-27 20:10:08,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679910789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:08,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:08,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:10:08,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719718101] [2024-11-27 20:10:08,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:08,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:08,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:08,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:08,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:08,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 125 [2024-11-27 20:10:08,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 117 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:08,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:08,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 125 [2024-11-27 20:10:08,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:09,315 INFO L124 PetriNetUnfolderBase]: 3195/5713 cut-off events. [2024-11-27 20:10:09,315 INFO L125 PetriNetUnfolderBase]: For 9379/9394 co-relation queries the response was YES. [2024-11-27 20:10:09,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15686 conditions, 5713 events. 3195/5713 cut-off events. For 9379/9394 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 36766 event pairs, 2013 based on Foata normal form. 0/5488 useless extension candidates. Maximal degree in co-relation 14391. Up to 4479 conditions per place. [2024-11-27 20:10:09,336 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 99 selfloop transitions, 10 changer transitions 0/138 dead transitions. [2024-11-27 20:10:09,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 138 transitions, 846 flow [2024-11-27 20:10:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2024-11-27 20:10:09,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.552 [2024-11-27 20:10:09,337 INFO L175 Difference]: Start difference. First operand has 130 places, 117 transitions, 526 flow. Second operand 3 states and 207 transitions. [2024-11-27 20:10:09,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 138 transitions, 846 flow [2024-11-27 20:10:09,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 819 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 20:10:09,370 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 623 flow [2024-11-27 20:10:09,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=623, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2024-11-27 20:10:09,371 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 10 predicate places. [2024-11-27 20:10:09,371 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 623 flow [2024-11-27 20:10:09,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:09,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:09,371 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:09,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:09,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:09,572 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:09,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash -31881743, now seen corresponding path program 1 times [2024-11-27 20:10:09,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:09,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1742637589] [2024-11-27 20:10:09,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:09,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:09,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:09,575 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:09,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:10:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:09,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:10:09,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:09,762 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:09,762 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:09,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-27 20:10:09,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:09,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:09,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:09,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742637589] [2024-11-27 20:10:09,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742637589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:09,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:09,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:10:09,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188940666] [2024-11-27 20:10:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:09,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:09,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:09,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:09,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:09,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 125 [2024-11-27 20:10:09,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:09,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:09,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 125 [2024-11-27 20:10:09,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:11,278 INFO L124 PetriNetUnfolderBase]: 3553/6316 cut-off events. [2024-11-27 20:10:11,278 INFO L125 PetriNetUnfolderBase]: For 12246/12261 co-relation queries the response was YES. [2024-11-27 20:10:11,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19128 conditions, 6316 events. 3553/6316 cut-off events. For 12246/12261 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 40916 event pairs, 2263 based on Foata normal form. 0/6171 useless extension candidates. Maximal degree in co-relation 17758. Up to 4911 conditions per place. [2024-11-27 20:10:11,313 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 102 selfloop transitions, 17 changer transitions 0/149 dead transitions. [2024-11-27 20:10:11,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 149 transitions, 1007 flow [2024-11-27 20:10:11,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:10:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-11-27 20:10:11,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5546666666666666 [2024-11-27 20:10:11,315 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 623 flow. Second operand 3 states and 208 transitions. [2024-11-27 20:10:11,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 149 transitions, 1007 flow [2024-11-27 20:10:11,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 149 transitions, 977 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:10:11,368 INFO L231 Difference]: Finished difference. Result has 131 places, 137 transitions, 795 flow [2024-11-27 20:10:11,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=795, PETRI_PLACES=131, PETRI_TRANSITIONS=137} [2024-11-27 20:10:11,369 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 12 predicate places. [2024-11-27 20:10:11,369 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 137 transitions, 795 flow [2024-11-27 20:10:11,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:11,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:11,370 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:11,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:11,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:11,574 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:11,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:11,574 INFO L85 PathProgramCache]: Analyzing trace with hash 663373826, now seen corresponding path program 1 times [2024-11-27 20:10:11,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:11,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553444314] [2024-11-27 20:10:11,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:11,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:11,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:11,577 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:11,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:10:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:11,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:10:11,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:11,754 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:11,754 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:11,755 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:11,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-27 20:10:11,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:11,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:11,811 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:10:11,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:11,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2024-11-27 20:10:11,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:11,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 65 [2024-11-27 20:10:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:11,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:11,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:10:11,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553444314] [2024-11-27 20:10:11,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553444314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:11,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:11,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:10:11,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397834006] [2024-11-27 20:10:11,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:11,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:11,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:10:11,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:12,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:10:12,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 125 [2024-11-27 20:10:12,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 137 transitions, 795 flow. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:12,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:10:12,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 125 [2024-11-27 20:10:12,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:10:15,711 INFO L124 PetriNetUnfolderBase]: 4175/7507 cut-off events. [2024-11-27 20:10:15,711 INFO L125 PetriNetUnfolderBase]: For 18760/18769 co-relation queries the response was YES. [2024-11-27 20:10:15,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24195 conditions, 7507 events. 4175/7507 cut-off events. For 18760/18769 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 51342 event pairs, 2412 based on Foata normal form. 242/7597 useless extension candidates. Maximal degree in co-relation 22460. Up to 5826 conditions per place. [2024-11-27 20:10:15,736 INFO L140 encePairwiseOnDemand]: 113/125 looper letters, 148 selfloop transitions, 27 changer transitions 0/204 dead transitions. [2024-11-27 20:10:15,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 204 transitions, 1495 flow [2024-11-27 20:10:15,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:10:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:10:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 377 transitions. [2024-11-27 20:10:15,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5026666666666667 [2024-11-27 20:10:15,738 INFO L175 Difference]: Start difference. First operand has 131 places, 137 transitions, 795 flow. Second operand 6 states and 377 transitions. [2024-11-27 20:10:15,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 204 transitions, 1495 flow [2024-11-27 20:10:15,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 204 transitions, 1461 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:10:15,827 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 1094 flow [2024-11-27 20:10:15,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1094, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-11-27 20:10:15,828 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 19 predicate places. [2024-11-27 20:10:15,828 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 1094 flow [2024-11-27 20:10:15,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:15,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:10:15,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:15,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:10:16,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:16,029 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-11-27 20:10:16,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:16,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1026180641, now seen corresponding path program 1 times [2024-11-27 20:10:16,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:10:16,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991176519] [2024-11-27 20:10:16,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:16,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:16,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:16,032 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:16,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:10:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:10:17,992 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:10:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:10:21,473 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-27 20:10:21,473 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:10:21,474 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2024-11-27 20:10:21,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2024-11-27 20:10:21,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2024-11-27 20:10:21,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2024-11-27 20:10:21,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 55 remaining) [2024-11-27 20:10:21,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (28 of 55 remaining) [2024-11-27 20:10:21,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2024-11-27 20:10:21,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2024-11-27 20:10:21,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (25 of 55 remaining) [2024-11-27 20:10:21,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 55 remaining) [2024-11-27 20:10:21,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2024-11-27 20:10:21,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (22 of 55 remaining) [2024-11-27 20:10:21,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2024-11-27 20:10:21,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2024-11-27 20:10:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2024-11-27 20:10:21,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:10:21,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:21,684 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:21,715 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:10:21,716 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:10:21,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:10:21 BasicIcfg [2024-11-27 20:10:21,721 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:10:21,722 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:10:21,722 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:10:21,722 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:10:21,723 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:46" (3/4) ... [2024-11-27 20:10:21,726 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:10:21,727 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:10:21,728 INFO L158 Benchmark]: Toolchain (without parser) took 37635.43ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 56.2MB in the beginning and 769.1MB in the end (delta: -712.9MB). Peak memory consumption was 367.1MB. Max. memory is 16.1GB. [2024-11-27 20:10:21,728 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 63.2MB in the end (delta: 18.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:10:21,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.71ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 43.8MB in the end (delta: 12.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-11-27 20:10:21,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.29ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 41.2MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:10:21,730 INFO L158 Benchmark]: Boogie Preprocessor took 80.44ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 36.6MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:10:21,730 INFO L158 Benchmark]: RCFGBuilder took 1462.46ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 36.6MB in the beginning and 77.3MB in the end (delta: -40.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-27 20:10:21,730 INFO L158 Benchmark]: TraceAbstraction took 35146.77ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 76.4MB in the beginning and 769.2MB in the end (delta: -692.7MB). Peak memory consumption was 340.7MB. Max. memory is 16.1GB. [2024-11-27 20:10:21,731 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 1.2GB. Free memory was 769.2MB in the beginning and 769.1MB in the end (delta: 99.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:10:21,734 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 83.9MB. Free memory was 63.2MB in the beginning and 63.2MB in the end (delta: 18.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.71ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 43.8MB in the end (delta: 12.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.29ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 41.2MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.44ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 36.6MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1462.46ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 36.6MB in the beginning and 77.3MB in the end (delta: -40.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 35146.77ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 76.4MB in the beginning and 769.2MB in the end (delta: -692.7MB). Peak memory consumption was 340.7MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 1.2GB. Free memory was 769.2MB in the beginning and 769.1MB in the end (delta: 99.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={134217729:24}, \old(data)={134217729:0}, d={134217729:24}, data={134217729:0}, res=0, t1=0, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={134217729:24}, \old(data)={134217729:0}, arg={134217729:24}, d={134217729:24}, data={134217729:0}, data={134217729:0}, dev={134217729:24}, res=0, t1=0, t2=1] [L3933] 0 data->shared.a = 3 VAL [\old(arg)={134217729:24}, arg={134217729:24}, data={134217729:0}, dev={134217729:24}, t1=0, t2=1] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={134217729:24}, arg={134217729:24}, data={134217729:0}, dev={134217729:24}, t1=0, t2=1] [L3936] 0 data->shared.b = 3 VAL [\old(arg)={134217729:24}, arg={134217729:24}, data={134217729:0}, dev={134217729:24}, t1=0, t2=1] [L3939] EXPR 0 data->shared.a [L3939] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_3-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_3-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={134217729:24}, arg={134217729:24}, data={134217729:0}, dev={134217729:24}, t1=0, t2=1] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 132 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 35.0s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1642 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1314 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 10.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3436 IncrementalHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 77 mSDtfsCounter, 3436 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1094occurred in iteration=12, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 743 SizeOfPredicates, 53 NumberOfNonLiveVariables, 1107 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 20:10:21,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d9893fc-e435-4a0d-9b11-e986611156e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample