./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-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_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1 --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:36:59,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:36:59,564 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 06:36:59,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:36:59,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:36:59,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:36:59,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:36:59,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:36:59,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:36:59,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:36:59,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:36:59,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:36:59,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:36:59,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:36:59,591 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:36:59,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:36:59,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:36:59,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:36:59,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:36:59,593 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_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1 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 -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-12-02 06:36:59,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:36:59,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:36:59,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:36:59,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:36:59,837 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:36:59,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-12-02 06:37:02,433 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/d0aa78a28/931de92fbf344dc6b27d5e7e4ff35680/FLAG0ca7fb7bf [2024-12-02 06:37:02,686 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:37:02,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-12-02 06:37:02,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/d0aa78a28/931de92fbf344dc6b27d5e7e4ff35680/FLAG0ca7fb7bf [2024-12-02 06:37:02,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/d0aa78a28/931de92fbf344dc6b27d5e7e4ff35680 [2024-12-02 06:37:02,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:37:03,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:37:03,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:03,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:37:03,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:37:03,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:02" (1/1) ... [2024-12-02 06:37:03,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e603ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:03, skipping insertion in model container [2024-12-02 06:37:03,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:02" (1/1) ... [2024-12-02 06:37:03,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:37:03,306 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:03,315 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:03,322 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:03,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:03,347 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) [2024-12-02 06:37:03,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5212103d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:03, skipping insertion in model container [2024-12-02 06:37:03,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:03,348 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-12-02 06:37:03,350 INFO L158 Benchmark]: Toolchain (without parser) took 349.55ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 71.4MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:37:03,350 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:37:03,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.77ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 71.6MB in the end (delta: 17.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:37:03,351 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 117.4MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.77ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 71.6MB in the end (delta: 17.5MB). 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_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1 --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:37:05,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:37:05,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-12-02 06:37:05,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:37:05,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:37:05,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:37:05,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:37:05,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:37:05,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:37:05,195 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:37:05,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:37:05,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:37:05,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:37:05,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:37:05,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:37:05,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:37:05,197 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:05,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:05,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:05,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:37:05,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:37:05,199 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_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1 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 -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-12-02 06:37:05,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:37:05,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:37:05,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:37:05,448 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:37:05,449 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:37:05,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-12-02 06:37:08,097 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/d6b689465/622bac23b22e442bbb63d441d0f18500/FLAG7217f140e [2024-12-02 06:37:08,358 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:37:08,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-12-02 06:37:08,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/d6b689465/622bac23b22e442bbb63d441d0f18500/FLAG7217f140e [2024-12-02 06:37:08,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/data/d6b689465/622bac23b22e442bbb63d441d0f18500 [2024-12-02 06:37:08,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:37:08,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:37:08,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:08,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:37:08,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:37:08,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:08,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e0b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08, skipping insertion in model container [2024-12-02 06:37:08,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:08,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:37:08,723 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:08,734 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:08,740 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:08,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:08,764 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-12-02 06:37:08,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:37:08,814 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:08,819 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:08,820 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:37:08,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:08,832 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:37:08,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:37:08,927 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:37:08,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08 WrapperNode [2024-12-02 06:37:08,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:37:08,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:37:08,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:37:08,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:37:08,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:08,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:08,975 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2024-12-02 06:37:08,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:37:08,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:37:08,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:37:08,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:37:08,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:08,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:08,987 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,004 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]. [2024-12-02 06:37:09,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,020 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:37:09,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:37:09,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:37:09,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:37:09,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (1/1) ... [2024-12-02 06:37:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:09,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:09,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:37:09,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-12-02 06:37:09,084 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:37:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 06:37:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:37:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:37:09,087 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 06:37:09,333 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:37:09,334 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:37:09,783 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 06:37:09,783 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:37:09,955 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:37:09,955 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 06:37:09,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:09 BoogieIcfgContainer [2024-12-02 06:37:09,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:37:09,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:37:09,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:37:09,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:37:09,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:37:08" (1/3) ... [2024-12-02 06:37:09,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fa8519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:37:09, skipping insertion in model container [2024-12-02 06:37:09,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:37:08" (2/3) ... [2024-12-02 06:37:09,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fa8519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:37:09, skipping insertion in model container [2024-12-02 06:37:09,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:09" (3/3) ... [2024-12-02 06:37:09,966 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-12-02 06:37:09,982 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:37:09,983 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_4-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2024-12-02 06:37:09,983 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 06:37:10,069 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 06:37:10,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2024-12-02 06:37:10,164 INFO L124 PetriNetUnfolderBase]: 14/171 cut-off events. [2024-12-02 06:37:10,167 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 06:37:10,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 14/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 694 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-12-02 06:37:10,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2024-12-02 06:37:10,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2024-12-02 06:37:10,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:37:10,195 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;@35aa55e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:37:10,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-12-02 06:37:10,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 06:37:10,200 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-12-02 06:37:10,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 06:37:10,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:10,201 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 06:37:10,201 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)] === [2024-12-02 06:37:10,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash 563048, now seen corresponding path program 1 times [2024-12-02 06:37:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772408503] [2024-12-02 06:37:10,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:10,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:10,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:10,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:10,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:37:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:10,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:37:10,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:10,418 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 [2024-12-02 06:37:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:10,440 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:10,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:10,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772408503] [2024-12-02 06:37:10,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772408503] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:10,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:10,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:37:10,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861759756] [2024-12-02 06:37:10,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:10,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:10,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:10,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:10,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-12-02 06:37:10,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-12-02 06:37:10,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:10,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-12-02 06:37:10,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:12,645 INFO L124 PetriNetUnfolderBase]: 9323/18312 cut-off events. [2024-12-02 06:37:12,645 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-12-02 06:37:12,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 18312 events. 9323/18312 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177600 event pairs, 559 based on Foata normal form. 792/11540 useless extension candidates. Maximal degree in co-relation 32603. Up to 13528 conditions per place. [2024-12-02 06:37:12,720 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-12-02 06:37:12,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2024-12-02 06:37:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:12,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:37:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-12-02 06:37:12,731 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2024-12-02 06:37:12,732 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2024-12-02 06:37:12,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2024-12-02 06:37:12,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 06:37:12,742 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-12-02 06:37:12,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-12-02 06:37:12,747 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-12-02 06:37:12,747 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-12-02 06:37:12,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-12-02 06:37:12,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:12,747 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 06:37:12,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:37:12,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:12,948 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)] === [2024-12-02 06:37:12,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:12,949 INFO L85 PathProgramCache]: Analyzing trace with hash 563049, now seen corresponding path program 1 times [2024-12-02 06:37:12,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:12,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232082253] [2024-12-02 06:37:12,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:12,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:12,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:12,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:37:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:13,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:37:13,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:13,079 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 [2024-12-02 06:37:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:13,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:13,090 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:13,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232082253] [2024-12-02 06:37:13,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232082253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:13,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:13,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:37:13,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258112426] [2024-12-02 06:37:13,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:13,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:13,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:13,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:13,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:13,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2024-12-02 06:37:13,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 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) [2024-12-02 06:37:13,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:13,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2024-12-02 06:37:13,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:15,121 INFO L124 PetriNetUnfolderBase]: 9323/18310 cut-off events. [2024-12-02 06:37:15,121 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-12-02 06:37:15,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33036 conditions, 18310 events. 9323/18310 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177732 event pairs, 559 based on Foata normal form. 1/10747 useless extension candidates. Maximal degree in co-relation 1995. Up to 13528 conditions per place. [2024-12-02 06:37:15,172 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2024-12-02 06:37:15,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2024-12-02 06:37:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:37:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-12-02 06:37:15,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2024-12-02 06:37:15,174 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2024-12-02 06:37:15,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2024-12-02 06:37:15,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:37:15,178 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2024-12-02 06:37:15,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2024-12-02 06:37:15,179 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-12-02 06:37:15,179 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2024-12-02 06:37:15,179 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) [2024-12-02 06:37:15,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:15,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 06:37:15,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:37:15,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:15,380 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)] === [2024-12-02 06:37:15,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 17452875, now seen corresponding path program 1 times [2024-12-02 06:37:15,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:15,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219752067] [2024-12-02 06:37:15,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:15,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:15,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:15,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:15,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:37:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:15,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:37:15,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:15,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:15,489 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:15,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219752067] [2024-12-02 06:37:15,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219752067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:15,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:15,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 06:37:15,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409585649] [2024-12-02 06:37:15,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:15,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:15,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:15,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:15,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:15,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2024-12-02 06:37:15,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-12-02 06:37:15,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:15,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2024-12-02 06:37:15,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:16,618 INFO L124 PetriNetUnfolderBase]: 9687/16060 cut-off events. [2024-12-02 06:37:16,619 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-12-02 06:37:16,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31348 conditions, 16060 events. 9687/16060 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 121483 event pairs, 9321 based on Foata normal form. 0/9139 useless extension candidates. Maximal degree in co-relation 16763. Up to 14510 conditions per place. [2024-12-02 06:37:16,675 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 3 changer transitions 2/133 dead transitions. [2024-12-02 06:37:16,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 133 transitions, 468 flow [2024-12-02 06:37:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:37:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2024-12-02 06:37:16,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-12-02 06:37:16,677 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 224 transitions. [2024-12-02 06:37:16,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 133 transitions, 468 flow [2024-12-02 06:37:16,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 133 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:37:16,681 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 225 flow [2024-12-02 06:37:16,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2024-12-02 06:37:16,682 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -9 predicate places. [2024-12-02 06:37:16,682 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 225 flow [2024-12-02 06:37:16,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-12-02 06:37:16,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:16,683 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:16,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:37:16,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:16,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:16,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:16,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1118249543, now seen corresponding path program 1 times [2024-12-02 06:37:16,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:16,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774486403] [2024-12-02 06:37:16,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:16,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:16,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:16,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:16,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:37:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:16,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:37:17,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:17,016 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:17,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:17,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774486403] [2024-12-02 06:37:17,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774486403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:17,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:17,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:37:17,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81041512] [2024-12-02 06:37:17,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:17,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:37:17,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:17,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:37:17,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:37:17,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-12-02 06:37:17,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-12-02 06:37:17,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:17,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-12-02 06:37:17,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:18,411 INFO L124 PetriNetUnfolderBase]: 9321/16372 cut-off events. [2024-12-02 06:37:18,411 INFO L125 PetriNetUnfolderBase]: For 595/595 co-relation queries the response was YES. [2024-12-02 06:37:18,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31293 conditions, 16372 events. 9321/16372 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 131807 event pairs, 9321 based on Foata normal form. 1/9713 useless extension candidates. Maximal degree in co-relation 29960. Up to 14494 conditions per place. [2024-12-02 06:37:18,450 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 74 selfloop transitions, 3 changer transitions 1/114 dead transitions. [2024-12-02 06:37:18,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 402 flow [2024-12-02 06:37:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:37:18,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 06:37:18,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-12-02 06:37:18,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5060483870967742 [2024-12-02 06:37:18,452 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 225 flow. Second operand 4 states and 251 transitions. [2024-12-02 06:37:18,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 402 flow [2024-12-02 06:37:18,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 388 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-12-02 06:37:18,476 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 235 flow [2024-12-02 06:37:18,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2024-12-02 06:37:18,477 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2024-12-02 06:37:18,477 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 235 flow [2024-12-02 06:37:18,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-12-02 06:37:18,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:18,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:18,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:37:18,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:18,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:18,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:18,678 INFO L85 PathProgramCache]: Analyzing trace with hash 305997286, now seen corresponding path program 1 times [2024-12-02 06:37:18,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:18,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506089820] [2024-12-02 06:37:18,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:18,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:18,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:18,680 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:18,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:37:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:18,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:37:18,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:18,789 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 [2024-12-02 06:37:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:18,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:18,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:18,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506089820] [2024-12-02 06:37:18,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506089820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:18,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:18,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:37:18,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902817265] [2024-12-02 06:37:18,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:18,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:18,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:18,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:18,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:18,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2024-12-02 06:37:18,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-12-02 06:37:18,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:18,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2024-12-02 06:37:18,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:19,953 INFO L124 PetriNetUnfolderBase]: 10049/16876 cut-off events. [2024-12-02 06:37:19,953 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-12-02 06:37:19,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33118 conditions, 16876 events. 10049/16876 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 882. Compared 129011 event pairs, 9321 based on Foata normal form. 0/10098 useless extension candidates. Maximal degree in co-relation 33071. Up to 14501 conditions per place. [2024-12-02 06:37:20,003 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 95 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-12-02 06:37:20,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 128 transitions, 477 flow [2024-12-02 06:37:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:37:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-12-02 06:37:20,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-12-02 06:37:20,004 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 235 flow. Second operand 3 states and 208 transitions. [2024-12-02 06:37:20,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 128 transitions, 477 flow [2024-12-02 06:37:20,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 128 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:20,015 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 234 flow [2024-12-02 06:37:20,015 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-12-02 06:37:20,016 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -11 predicate places. [2024-12-02 06:37:20,016 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 234 flow [2024-12-02 06:37:20,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-12-02 06:37:20,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:20,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:20,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:37:20,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:20,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:20,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash 305997287, now seen corresponding path program 1 times [2024-12-02 06:37:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565060355] [2024-12-02 06:37:20,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:20,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:20,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:20,219 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:20,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:37:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:20,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:37:20,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:20,327 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 [2024-12-02 06:37:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:20,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:20,386 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:20,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565060355] [2024-12-02 06:37:20,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565060355] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:20,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:20,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:37:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738456201] [2024-12-02 06:37:20,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:20,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:37:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:20,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:37:20,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:37:20,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2024-12-02 06:37:20,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-12-02 06:37:20,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:20,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2024-12-02 06:37:20,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:21,547 INFO L124 PetriNetUnfolderBase]: 9321/15680 cut-off events. [2024-12-02 06:37:21,548 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-12-02 06:37:21,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31004 conditions, 15680 events. 9321/15680 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 121894 event pairs, 3107 based on Foata normal form. 394/9594 useless extension candidates. Maximal degree in co-relation 27898. Up to 9600 conditions per place. [2024-12-02 06:37:21,583 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 106 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-12-02 06:37:21,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 135 transitions, 524 flow [2024-12-02 06:37:21,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:37:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 06:37:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2024-12-02 06:37:21,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2024-12-02 06:37:21,584 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 234 flow. Second operand 3 states and 223 transitions. [2024-12-02 06:37:21,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 135 transitions, 524 flow [2024-12-02 06:37:21,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 135 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 06:37:21,597 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 250 flow [2024-12-02 06:37:21,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2024-12-02 06:37:21,598 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-12-02 06:37:21,598 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 250 flow [2024-12-02 06:37:21,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-12-02 06:37:21,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:21,598 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:21,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:37:21,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:21,799 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:21,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:21,799 INFO L85 PathProgramCache]: Analyzing trace with hash 976462417, now seen corresponding path program 1 times [2024-12-02 06:37:21,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:21,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137549279] [2024-12-02 06:37:21,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:21,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:21,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:21,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:21,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:37:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:21,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:37:21,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:21,909 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 [2024-12-02 06:37:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:21,941 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:21,941 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:21,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137549279] [2024-12-02 06:37:21,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137549279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:21,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:21,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:37:21,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140169563] [2024-12-02 06:37:21,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:21,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:21,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:21,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:21,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:22,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-12-02 06:37:22,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-12-02 06:37:22,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:22,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-12-02 06:37:22,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:23,426 INFO L124 PetriNetUnfolderBase]: 7623/13778 cut-off events. [2024-12-02 06:37:23,426 INFO L125 PetriNetUnfolderBase]: For 778/778 co-relation queries the response was YES. [2024-12-02 06:37:23,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26875 conditions, 13778 events. 7623/13778 cut-off events. For 778/778 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 111965 event pairs, 55 based on Foata normal form. 0/9136 useless extension candidates. Maximal degree in co-relation 9261. Up to 9075 conditions per place. [2024-12-02 06:37:23,460 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 183 selfloop transitions, 13 changer transitions 0/227 dead transitions. [2024-12-02 06:37:23,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 227 transitions, 903 flow [2024-12-02 06:37:23,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:37:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 06:37:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 547 transitions. [2024-12-02 06:37:23,461 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5514112903225806 [2024-12-02 06:37:23,462 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 250 flow. Second operand 8 states and 547 transitions. [2024-12-02 06:37:23,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 227 transitions, 903 flow [2024-12-02 06:37:23,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 227 transitions, 895 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:23,487 INFO L231 Difference]: Finished difference. Result has 118 places, 110 transitions, 331 flow [2024-12-02 06:37:23,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=331, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2024-12-02 06:37:23,487 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2024-12-02 06:37:23,487 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 331 flow [2024-12-02 06:37:23,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-12-02 06:37:23,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:23,488 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:23,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:37:23,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:23,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:23,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:23,688 INFO L85 PathProgramCache]: Analyzing trace with hash 976462418, now seen corresponding path program 1 times [2024-12-02 06:37:23,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:23,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286883226] [2024-12-02 06:37:23,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:23,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:23,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:23,691 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:23,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:37:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:23,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 06:37:23,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:23,809 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 [2024-12-02 06:37:23,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:23,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:23,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:23,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286883226] [2024-12-02 06:37:23,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286883226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:23,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:23,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:37:23,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685190936] [2024-12-02 06:37:23,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:23,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:23,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:23,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:23,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:24,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-12-02 06:37:24,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 331 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-12-02 06:37:24,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:24,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-12-02 06:37:24,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:25,574 INFO L124 PetriNetUnfolderBase]: 6646/11793 cut-off events. [2024-12-02 06:37:25,574 INFO L125 PetriNetUnfolderBase]: For 4332/4332 co-relation queries the response was YES. [2024-12-02 06:37:25,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25123 conditions, 11793 events. 6646/11793 cut-off events. For 4332/4332 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 91634 event pairs, 845 based on Foata normal form. 524/9135 useless extension candidates. Maximal degree in co-relation 23658. Up to 6594 conditions per place. [2024-12-02 06:37:25,609 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 151 selfloop transitions, 10 changer transitions 1/193 dead transitions. [2024-12-02 06:37:25,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 193 transitions, 841 flow [2024-12-02 06:37:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:37:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 06:37:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 464 transitions. [2024-12-02 06:37:25,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5345622119815668 [2024-12-02 06:37:25,611 INFO L175 Difference]: Start difference. First operand has 118 places, 110 transitions, 331 flow. Second operand 7 states and 464 transitions. [2024-12-02 06:37:25,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 193 transitions, 841 flow [2024-12-02 06:37:25,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 193 transitions, 834 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:25,627 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 379 flow [2024-12-02 06:37:25,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2024-12-02 06:37:25,628 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-12-02 06:37:25,628 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 379 flow [2024-12-02 06:37:25,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-12-02 06:37:25,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:25,628 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:25,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:37:25,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:25,829 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:25,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:25,829 INFO L85 PathProgramCache]: Analyzing trace with hash 244712209, now seen corresponding path program 1 times [2024-12-02 06:37:25,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:25,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418804708] [2024-12-02 06:37:25,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:25,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:25,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:25,831 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:25,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:37:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:25,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:37:25,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:25,950 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 [2024-12-02 06:37:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:25,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:25,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418804708] [2024-12-02 06:37:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418804708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:25,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:25,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:37:25,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599830484] [2024-12-02 06:37:25,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:25,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:25,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:25,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:25,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:26,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-12-02 06:37:26,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 379 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2024-12-02 06:37:26,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:26,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-12-02 06:37:26,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:27,507 INFO L124 PetriNetUnfolderBase]: 5575/9967 cut-off events. [2024-12-02 06:37:27,508 INFO L125 PetriNetUnfolderBase]: For 6993/6993 co-relation queries the response was YES. [2024-12-02 06:37:27,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23148 conditions, 9967 events. 5575/9967 cut-off events. For 6993/6993 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 74958 event pairs, 653 based on Foata normal form. 0/7770 useless extension candidates. Maximal degree in co-relation 20966. Up to 6421 conditions per place. [2024-12-02 06:37:27,536 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2024-12-02 06:37:27,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 222 transitions, 1126 flow [2024-12-02 06:37:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:37:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 06:37:27,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2024-12-02 06:37:27,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2024-12-02 06:37:27,538 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 379 flow. Second operand 8 states and 530 transitions. [2024-12-02 06:37:27,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 222 transitions, 1126 flow [2024-12-02 06:37:27,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 222 transitions, 1096 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 06:37:27,552 INFO L231 Difference]: Finished difference. Result has 132 places, 121 transitions, 486 flow [2024-12-02 06:37:27,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=486, PETRI_PLACES=132, PETRI_TRANSITIONS=121} [2024-12-02 06:37:27,553 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 14 predicate places. [2024-12-02 06:37:27,553 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 121 transitions, 486 flow [2024-12-02 06:37:27,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2024-12-02 06:37:27,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:27,553 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:27,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 06:37:27,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:27,754 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:27,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 244712210, now seen corresponding path program 1 times [2024-12-02 06:37:27,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:27,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323643592] [2024-12-02 06:37:27,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:27,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:27,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:27,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:27,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 06:37:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:27,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 06:37:27,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:27,874 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 [2024-12-02 06:37:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:27,939 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:27,939 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:27,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323643592] [2024-12-02 06:37:27,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323643592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:27,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:27,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:37:27,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284265998] [2024-12-02 06:37:27,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:27,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:27,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:27,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:27,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:28,145 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-12-02 06:37:28,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 121 transitions, 486 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2024-12-02 06:37:28,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:28,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-12-02 06:37:28,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:29,349 INFO L124 PetriNetUnfolderBase]: 4926/8678 cut-off events. [2024-12-02 06:37:29,349 INFO L125 PetriNetUnfolderBase]: For 8055/8057 co-relation queries the response was YES. [2024-12-02 06:37:29,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21879 conditions, 8678 events. 4926/8678 cut-off events. For 8055/8057 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 62658 event pairs, 1266 based on Foata normal form. 378/7832 useless extension candidates. Maximal degree in co-relation 19986. Up to 5127 conditions per place. [2024-12-02 06:37:29,373 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2024-12-02 06:37:29,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 191 transitions, 1048 flow [2024-12-02 06:37:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:37:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-02 06:37:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2024-12-02 06:37:29,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-12-02 06:37:29,374 INFO L175 Difference]: Start difference. First operand has 132 places, 121 transitions, 486 flow. Second operand 7 states and 448 transitions. [2024-12-02 06:37:29,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 191 transitions, 1048 flow [2024-12-02 06:37:29,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 191 transitions, 1045 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 06:37:29,387 INFO L231 Difference]: Finished difference. Result has 140 places, 124 transitions, 561 flow [2024-12-02 06:37:29,387 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=561, PETRI_PLACES=140, PETRI_TRANSITIONS=124} [2024-12-02 06:37:29,387 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 22 predicate places. [2024-12-02 06:37:29,388 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 124 transitions, 561 flow [2024-12-02 06:37:29,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2024-12-02 06:37:29,388 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:29,388 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:29,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 06:37:29,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:29,588 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:29,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:29,589 INFO L85 PathProgramCache]: Analyzing trace with hash 242287942, now seen corresponding path program 1 times [2024-12-02 06:37:29,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:29,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350273565] [2024-12-02 06:37:29,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:29,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:29,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:29,591 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:29,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 06:37:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:29,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 06:37:29,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:29,706 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 [2024-12-02 06:37:29,711 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 [2024-12-02 06:37:29,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:29,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-12-02 06:37:29,821 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-12-02 06:37:29,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-12-02 06:37:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:29,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:29,836 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:29,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350273565] [2024-12-02 06:37:29,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350273565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:29,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:29,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:37:29,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483153044] [2024-12-02 06:37:29,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:29,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:37:29,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:29,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:37:29,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:37:29,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2024-12-02 06:37:29,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 124 transitions, 561 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 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) [2024-12-02 06:37:29,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:29,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2024-12-02 06:37:29,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:30,843 INFO L124 PetriNetUnfolderBase]: 4046/6978 cut-off events. [2024-12-02 06:37:30,843 INFO L125 PetriNetUnfolderBase]: For 10374/10393 co-relation queries the response was YES. [2024-12-02 06:37:30,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19476 conditions, 6978 events. 4046/6978 cut-off events. For 10374/10393 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 47242 event pairs, 1842 based on Foata normal form. 2/6213 useless extension candidates. Maximal degree in co-relation 17551. Up to 3737 conditions per place. [2024-12-02 06:37:30,868 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 113 selfloop transitions, 11 changer transitions 0/148 dead transitions. [2024-12-02 06:37:30,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 148 transitions, 877 flow [2024-12-02 06:37:30,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:37:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 06:37:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2024-12-02 06:37:30,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4737903225806452 [2024-12-02 06:37:30,869 INFO L175 Difference]: Start difference. First operand has 140 places, 124 transitions, 561 flow. Second operand 4 states and 235 transitions. [2024-12-02 06:37:30,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 148 transitions, 877 flow [2024-12-02 06:37:30,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 148 transitions, 856 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 06:37:30,879 INFO L231 Difference]: Finished difference. Result has 134 places, 120 transitions, 554 flow [2024-12-02 06:37:30,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=554, PETRI_PLACES=134, PETRI_TRANSITIONS=120} [2024-12-02 06:37:30,879 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2024-12-02 06:37:30,879 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 120 transitions, 554 flow [2024-12-02 06:37:30,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 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) [2024-12-02 06:37:30,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:30,879 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:30,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 06:37:31,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:31,080 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:31,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 242287941, now seen corresponding path program 1 times [2024-12-02 06:37:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:31,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556817820] [2024-12-02 06:37:31,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:31,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:31,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:31,082 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:31,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 06:37:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:31,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:37:31,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:31,203 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 [2024-12-02 06:37:31,246 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-12-02 06:37:31,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-12-02 06:37:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:31,254 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:31,254 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:31,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556817820] [2024-12-02 06:37:31,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556817820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:31,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:31,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:37:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77781488] [2024-12-02 06:37:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:31,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:37:31,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:31,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:37:31,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:37:31,336 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2024-12-02 06:37:31,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 120 transitions, 554 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-12-02 06:37:31,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:31,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2024-12-02 06:37:31,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:32,147 INFO L124 PetriNetUnfolderBase]: 3390/5928 cut-off events. [2024-12-02 06:37:32,147 INFO L125 PetriNetUnfolderBase]: For 8869/8888 co-relation queries the response was YES. [2024-12-02 06:37:32,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16669 conditions, 5928 events. 3390/5928 cut-off events. For 8869/8888 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 39156 event pairs, 1770 based on Foata normal form. 2/5658 useless extension candidates. Maximal degree in co-relation 14809. Up to 2373 conditions per place. [2024-12-02 06:37:32,167 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 97 selfloop transitions, 13 changer transitions 0/138 dead transitions. [2024-12-02 06:37:32,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 138 transitions, 830 flow [2024-12-02 06:37:32,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:37:32,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 06:37:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2024-12-02 06:37:32,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47580645161290325 [2024-12-02 06:37:32,168 INFO L175 Difference]: Start difference. First operand has 134 places, 120 transitions, 554 flow. Second operand 4 states and 236 transitions. [2024-12-02 06:37:32,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 138 transitions, 830 flow [2024-12-02 06:37:32,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 808 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 06:37:32,177 INFO L231 Difference]: Finished difference. Result has 130 places, 116 transitions, 550 flow [2024-12-02 06:37:32,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=550, PETRI_PLACES=130, PETRI_TRANSITIONS=116} [2024-12-02 06:37:32,178 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 12 predicate places. [2024-12-02 06:37:32,178 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 116 transitions, 550 flow [2024-12-02 06:37:32,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-12-02 06:37:32,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:32,178 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:32,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 06:37:32,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:32,378 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:32,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:32,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1770643278, now seen corresponding path program 1 times [2024-12-02 06:37:32,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:32,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767977542] [2024-12-02 06:37:32,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:32,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:32,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:32,381 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:32,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 06:37:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:32,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:37:32,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:32,532 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:32,533 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:32,533 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:32,536 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 [2024-12-02 06:37:32,574 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:32,575 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:32,575 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:32,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:37:32,584 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 [2024-12-02 06:37:32,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:37:32,686 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 [2024-12-02 06:37:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:32,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:32,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:32,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767977542] [2024-12-02 06:37:32,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767977542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:32,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:32,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:32,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878536578] [2024-12-02 06:37:32,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:32,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:32,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:32,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:32,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:37:32,923 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-12-02 06:37:32,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 116 transitions, 550 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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) [2024-12-02 06:37:32,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:32,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-12-02 06:37:32,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:35,488 INFO L124 PetriNetUnfolderBase]: 4012/7119 cut-off events. [2024-12-02 06:37:35,488 INFO L125 PetriNetUnfolderBase]: For 12403/12407 co-relation queries the response was YES. [2024-12-02 06:37:35,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20053 conditions, 7119 events. 4012/7119 cut-off events. For 12403/12407 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 49746 event pairs, 2607 based on Foata normal form. 244/7091 useless extension candidates. Maximal degree in co-relation 18128. Up to 5530 conditions per place. [2024-12-02 06:37:35,526 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 128 selfloop transitions, 27 changer transitions 0/183 dead transitions. [2024-12-02 06:37:35,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 183 transitions, 1170 flow [2024-12-02 06:37:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:37:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 06:37:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 371 transitions. [2024-12-02 06:37:35,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4986559139784946 [2024-12-02 06:37:35,528 INFO L175 Difference]: Start difference. First operand has 130 places, 116 transitions, 550 flow. Second operand 6 states and 371 transitions. [2024-12-02 06:37:35,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 183 transitions, 1170 flow [2024-12-02 06:37:35,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 183 transitions, 1132 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 06:37:35,557 INFO L231 Difference]: Finished difference. Result has 136 places, 143 transitions, 805 flow [2024-12-02 06:37:35,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=805, PETRI_PLACES=136, PETRI_TRANSITIONS=143} [2024-12-02 06:37:35,557 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 18 predicate places. [2024-12-02 06:37:35,557 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 143 transitions, 805 flow [2024-12-02 06:37:35,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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) [2024-12-02 06:37:35,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:35,558 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:35,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 06:37:35,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:35,758 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:35,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 910496269, now seen corresponding path program 1 times [2024-12-02 06:37:35,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:35,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267111737] [2024-12-02 06:37:35,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:35,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:35,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:35,761 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:35,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 06:37:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:35,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:37:35,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:35,899 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:35,899 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:35,901 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 [2024-12-02 06:37:35,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:35,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:35,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:35,936 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:35,937 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 06:37:35,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:37:35,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 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 [2024-12-02 06:37:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:36,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:36,009 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267111737] [2024-12-02 06:37:36,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267111737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:36,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:36,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:37:36,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735267483] [2024-12-02 06:37:36,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:36,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:37:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:36,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:37:36,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:37:36,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-12-02 06:37:36,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 143 transitions, 805 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-12-02 06:37:36,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:36,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-12-02 06:37:36,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:38,274 INFO L124 PetriNetUnfolderBase]: 4992/8692 cut-off events. [2024-12-02 06:37:38,274 INFO L125 PetriNetUnfolderBase]: For 15961/15965 co-relation queries the response was YES. [2024-12-02 06:37:38,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26853 conditions, 8692 events. 4992/8692 cut-off events. For 15961/15965 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 62069 event pairs, 2391 based on Foata normal form. 2/8333 useless extension candidates. Maximal degree in co-relation 24878. Up to 6267 conditions per place. [2024-12-02 06:37:38,301 INFO L140 encePairwiseOnDemand]: 113/124 looper letters, 151 selfloop transitions, 13 changer transitions 0/192 dead transitions. [2024-12-02 06:37:38,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 192 transitions, 1345 flow [2024-12-02 06:37:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:37:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 06:37:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-12-02 06:37:38,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5544354838709677 [2024-12-02 06:37:38,303 INFO L175 Difference]: Start difference. First operand has 136 places, 143 transitions, 805 flow. Second operand 4 states and 275 transitions. [2024-12-02 06:37:38,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 192 transitions, 1345 flow [2024-12-02 06:37:38,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 192 transitions, 1339 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-12-02 06:37:38,331 INFO L231 Difference]: Finished difference. Result has 142 places, 155 transitions, 935 flow [2024-12-02 06:37:38,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=935, PETRI_PLACES=142, PETRI_TRANSITIONS=155} [2024-12-02 06:37:38,331 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2024-12-02 06:37:38,331 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 155 transitions, 935 flow [2024-12-02 06:37:38,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-12-02 06:37:38,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:38,332 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:38,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 06:37:38,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:38,532 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:38,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:38,532 INFO L85 PathProgramCache]: Analyzing trace with hash 961438530, now seen corresponding path program 1 times [2024-12-02 06:37:38,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:38,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84478530] [2024-12-02 06:37:38,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:38,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:38,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:38,534 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:38,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 06:37:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:38,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 06:37:38,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:38,670 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 [2024-12-02 06:37:38,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:38,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-12-02 06:37:38,822 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-12-02 06:37:38,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-12-02 06:37:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:38,836 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:38,836 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:38,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84478530] [2024-12-02 06:37:38,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84478530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:38,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:38,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:37:38,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275506376] [2024-12-02 06:37:38,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:38,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:37:38,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:38,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:37:38,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:37:39,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2024-12-02 06:37:39,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 155 transitions, 935 flow. Second operand has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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) [2024-12-02 06:37:39,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:39,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2024-12-02 06:37:39,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:40,888 INFO L124 PetriNetUnfolderBase]: 4425/8153 cut-off events. [2024-12-02 06:37:40,888 INFO L125 PetriNetUnfolderBase]: For 17757/17763 co-relation queries the response was YES. [2024-12-02 06:37:40,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26835 conditions, 8153 events. 4425/8153 cut-off events. For 17757/17763 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 60547 event pairs, 1041 based on Foata normal form. 403/8530 useless extension candidates. Maximal degree in co-relation 24318. Up to 4659 conditions per place. [2024-12-02 06:37:40,915 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 212 selfloop transitions, 25 changer transitions 0/268 dead transitions. [2024-12-02 06:37:40,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 268 transitions, 1966 flow [2024-12-02 06:37:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:37:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 06:37:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 547 transitions. [2024-12-02 06:37:40,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49014336917562723 [2024-12-02 06:37:40,917 INFO L175 Difference]: Start difference. First operand has 142 places, 155 transitions, 935 flow. Second operand 9 states and 547 transitions. [2024-12-02 06:37:40,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 268 transitions, 1966 flow [2024-12-02 06:37:40,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 268 transitions, 1933 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-12-02 06:37:40,957 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 961 flow [2024-12-02 06:37:40,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=961, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2024-12-02 06:37:40,957 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 28 predicate places. [2024-12-02 06:37:40,958 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 961 flow [2024-12-02 06:37:40,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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) [2024-12-02 06:37:40,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:40,958 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:40,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 06:37:41,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:41,158 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:41,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash -647899458, now seen corresponding path program 1 times [2024-12-02 06:37:41,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:41,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568193996] [2024-12-02 06:37:41,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:41,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:41,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:41,161 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:41,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 06:37:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:41,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:37:41,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:41,286 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 [2024-12-02 06:37:41,293 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 [2024-12-02 06:37:41,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:37:41,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-12-02 06:37:41,417 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-12-02 06:37:41,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-12-02 06:37:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:41,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:41,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:41,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568193996] [2024-12-02 06:37:41,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568193996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:41,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:41,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:37:41,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828715164] [2024-12-02 06:37:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:41,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:37:41,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:41,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:37:41,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:37:41,928 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-12-02 06:37:41,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 961 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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) [2024-12-02 06:37:41,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:41,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-12-02 06:37:41,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:43,548 INFO L124 PetriNetUnfolderBase]: 4402/8231 cut-off events. [2024-12-02 06:37:43,549 INFO L125 PetriNetUnfolderBase]: For 19314/19318 co-relation queries the response was YES. [2024-12-02 06:37:43,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27009 conditions, 8231 events. 4402/8231 cut-off events. For 19314/19318 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 62724 event pairs, 1080 based on Foata normal form. 304/8515 useless extension candidates. Maximal degree in co-relation 24027. Up to 3908 conditions per place. [2024-12-02 06:37:43,577 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 215 selfloop transitions, 25 changer transitions 0/272 dead transitions. [2024-12-02 06:37:43,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 272 transitions, 2040 flow [2024-12-02 06:37:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:37:43,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 06:37:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 556 transitions. [2024-12-02 06:37:43,578 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4982078853046595 [2024-12-02 06:37:43,579 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 961 flow. Second operand 9 states and 556 transitions. [2024-12-02 06:37:43,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 272 transitions, 2040 flow [2024-12-02 06:37:43,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 272 transitions, 1987 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-12-02 06:37:43,625 INFO L231 Difference]: Finished difference. Result has 144 places, 151 transitions, 967 flow [2024-12-02 06:37:43,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=967, PETRI_PLACES=144, PETRI_TRANSITIONS=151} [2024-12-02 06:37:43,626 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2024-12-02 06:37:43,626 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 151 transitions, 967 flow [2024-12-02 06:37:43,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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) [2024-12-02 06:37:43,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:43,626 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:43,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 06:37:43,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:43,827 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:43,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1867513367, now seen corresponding path program 1 times [2024-12-02 06:37:43,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:43,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603790959] [2024-12-02 06:37:43,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:43,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:43,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:43,829 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:43,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 06:37:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:37:43,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:37:43,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:37:44,041 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_89| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89| (_ bv0 1))))) is different from true [2024-12-02 06:37:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:37:44,047 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:37:44,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:37:44,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603790959] [2024-12-02 06:37:44,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603790959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:37:44,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:37:44,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:37:44,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268025181] [2024-12-02 06:37:44,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:37:44,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:37:44,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:37:44,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:37:44,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-12-02 06:37:44,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 124 [2024-12-02 06:37:44,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 151 transitions, 967 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 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) [2024-12-02 06:37:44,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:37:44,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 124 [2024-12-02 06:37:44,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:37:45,304 INFO L124 PetriNetUnfolderBase]: 4699/8406 cut-off events. [2024-12-02 06:37:45,305 INFO L125 PetriNetUnfolderBase]: For 21301/21303 co-relation queries the response was YES. [2024-12-02 06:37:45,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28486 conditions, 8406 events. 4699/8406 cut-off events. For 21301/21303 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 61473 event pairs, 1748 based on Foata normal form. 1/8376 useless extension candidates. Maximal degree in co-relation 25455. Up to 2794 conditions per place. [2024-12-02 06:37:45,347 INFO L140 encePairwiseOnDemand]: 98/124 looper letters, 142 selfloop transitions, 37 changer transitions 4/201 dead transitions. [2024-12-02 06:37:45,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 201 transitions, 1578 flow [2024-12-02 06:37:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:37:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 06:37:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 242 transitions. [2024-12-02 06:37:45,348 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3903225806451613 [2024-12-02 06:37:45,348 INFO L175 Difference]: Start difference. First operand has 144 places, 151 transitions, 967 flow. Second operand 5 states and 242 transitions. [2024-12-02 06:37:45,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 201 transitions, 1578 flow [2024-12-02 06:37:45,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 201 transitions, 1542 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-12-02 06:37:45,404 INFO L231 Difference]: Finished difference. Result has 145 places, 169 transitions, 1213 flow [2024-12-02 06:37:45,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1213, PETRI_PLACES=145, PETRI_TRANSITIONS=169} [2024-12-02 06:37:45,404 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2024-12-02 06:37:45,404 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 169 transitions, 1213 flow [2024-12-02 06:37:45,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 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) [2024-12-02 06:37:45,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:37:45,405 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:45,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 06:37:45,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:45,605 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-12-02 06:37:45,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:37:45,605 INFO L85 PathProgramCache]: Analyzing trace with hash -923622189, now seen corresponding path program 1 times [2024-12-02 06:37:45,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:37:45,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242789667] [2024-12-02 06:37:45,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:37:45,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:45,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:37:45,607 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:37:45,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 06:37:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:37:51,365 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:37:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:37:54,225 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 06:37:54,225 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:37:54,226 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2024-12-02 06:37:54,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (34 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2024-12-02 06:37:54,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2024-12-02 06:37:54,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2024-12-02 06:37:54,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2024-12-02 06:37:54,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 06:37:54,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:37:54,432 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:37:54,466 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 06:37:54,467 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:37:54,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:37:54 BasicIcfg [2024-12-02 06:37:54,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:37:54,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:37:54,472 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:37:54,472 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:37:54,473 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:37:09" (3/4) ... [2024-12-02 06:37:54,475 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 06:37:54,475 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:37:54,476 INFO L158 Benchmark]: Toolchain (without parser) took 46081.83ms. Allocated memory was 92.3MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 66.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2024-12-02 06:37:54,476 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:37:54,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.06ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 54.0MB in the end (delta: 12.6MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2024-12-02 06:37:54,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.39ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 51.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:37:54,477 INFO L158 Benchmark]: Boogie Preprocessor took 58.55ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 46.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:37:54,477 INFO L158 Benchmark]: RCFGBuilder took 920.64ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 46.5MB in the beginning and 79.9MB in the end (delta: -33.4MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-12-02 06:37:54,477 INFO L158 Benchmark]: TraceAbstraction took 44513.20ms. Allocated memory was 134.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 79.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 867.6MB. Max. memory is 16.1GB. [2024-12-02 06:37:54,478 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 1.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:37:54,479 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.06ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 54.0MB in the end (delta: 12.6MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.39ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 51.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.55ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 46.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 920.64ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 46.5MB in the beginning and 79.9MB in the end (delta: -33.4MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 44513.20ms. Allocated memory was 134.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 79.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 867.6MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 1.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 293.6kB). There was no memory consumed. 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, EXPR 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)={4194304:24}, \old(data)={4194304:0}, d={4194304:24}, data={4194304:0}, res=0, t1=131071, 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)={4194304:24}, \old(data)={4194304:0}, arg={4194304:24}, d={4194304:24}, data={4194304:0}, data={4194304:0}, dev={4194304:24}, res=0, t1=131071, t2=131072] [L3931] 0 return 0; VAL [\old(arg)={4194304:24}, \old(data)={4194304:0}, \result=0, arg={4194304:24}, d={4194304:24}, data={4194304:0}, data={4194304:0}, dev={4194304:24}, res=0, t1=131071, t2=131072] [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={4194304:24}, \old(data)={4194304:0}, arg={4194304:24}, data={4194304:0}, data={4194304:0}, dev={4194304:24}, status={16:0}, t1=131071, t2=131072] [L3940] 0 data->shared.a = 3 VAL [\old(arg)={4194304:24}, arg={4194304:24}, data={4194304:0}, dev={4194304:24}, t1=131071, t2=131072] [L3943] 0 data->shared.b = 3 VAL [\old(arg)={4194304:24}, arg={4194304:24}, data={4194304:0}, dev={4194304:24}, t1=131071, t2=131072] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={4194304:24}, arg={4194304:24}, data={4194304:0}, dev={4194304:24}, t1=131071, t2=131072] [L3946] EXPR 0 data->shared.a [L3946] 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_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={4194304:24}, arg={4194304:24}, data={4194304:0}, dev={4194304:24}, t1=131071, t2=131072] - 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: 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: -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: -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: 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, 131 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: 44.3s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2476 SdHoareTripleChecker+Valid, 12.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2029 mSDsluCounter, 129 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 137 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5676 IncrementalHoareTripleChecker+Invalid, 5921 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 77 mSDtfsCounter, 5676 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1213occurred in iteration=17, InterpolantAutomatonStates: 90, 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, 5.9s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 163 ConstructedInterpolants, 2 QuantifiedInterpolants, 1566 SizeOfPredicates, 92 NumberOfNonLiveVariables, 1674 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 [2024-12-02 06:37:54,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcae07cb-005d-45f0-b0b0-e47e8a4d4410/bin/uautomizer-verify-84ZbGMXZE1/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