./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-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_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:46:11,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:46:11,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:46:11,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:46:11,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:46:11,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:46:11,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:46:11,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:46:11,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:46:11,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:46:11,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:46:11,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:46:11,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:46:11,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:46:11,605 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:46:11,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:46:11,605 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:46:11,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:46:11,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:46:11,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:46:11,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:46:11,609 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:46:11,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:46:11,609 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:46:11,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:11,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:11,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:46:11,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:46:11,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:46:11,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:46:11,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:46:11,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:46:11,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:46:11,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:46:11,611 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_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2024-11-28 04:46:11,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:46:11,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:46:11,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:46:11,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:46:11,945 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:46:11,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2024-11-28 04:46:14,937 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/0a321ff6f/5afeaa94d1944d22b9a5cb264d430dcd/FLAG0912b2ca2 [2024-11-28 04:46:15,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:46:15,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2024-11-28 04:46:15,359 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/0a321ff6f/5afeaa94d1944d22b9a5cb264d430dcd/FLAG0912b2ca2 [2024-11-28 04:46:15,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/0a321ff6f/5afeaa94d1944d22b9a5cb264d430dcd [2024-11-28 04:46:15,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:46:15,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:46:15,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:15,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:46:15,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:46:15,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:15" (1/1) ... [2024-11-28 04:46:15,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6c574b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:15, skipping insertion in model container [2024-11-28 04:46:15,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:15" (1/1) ... [2024-11-28 04:46:15,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:15,873 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:15,882 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:15,889 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:15,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:15,916 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 04:46:15,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6781b465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:15, skipping insertion in model container [2024-11-28 04:46:15,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:15,918 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:46:15,921 INFO L158 Benchmark]: Toolchain (without parser) took 541.64ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 73.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:46:15,923 INFO L158 Benchmark]: CDTParser took 1.38ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:46:15,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.85ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 73.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:46:15,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.85ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 73.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. 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_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:46:18,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:46:18,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:46:18,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:46:18,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:46:18,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:46:18,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:46:18,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:46:18,497 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:46:18,497 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:46:18,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:46:18,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:46:18,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:46:18,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:46:18,498 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:46:18,499 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:46:18,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:46:18,502 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:46:18,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:46:18,503 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:18,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:18,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:18,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:46:18,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:46:18,504 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_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2024-11-28 04:46:18,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:46:18,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:46:18,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:46:18,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:46:18,854 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:46:18,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2024-11-28 04:46:21,860 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/46bb412f7/b490e4d9704c42e2a91b44ced968ea19/FLAG9fece0d77 [2024-11-28 04:46:22,288 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:46:22,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2024-11-28 04:46:22,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/46bb412f7/b490e4d9704c42e2a91b44ced968ea19/FLAG9fece0d77 [2024-11-28 04:46:22,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/data/46bb412f7/b490e4d9704c42e2a91b44ced968ea19 [2024-11-28 04:46:22,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:46:22,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:46:22,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:22,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:46:22,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:46:22,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:22" (1/1) ... [2024-11-28 04:46:22,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d482bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:22, skipping insertion in model container [2024-11-28 04:46:22,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:22" (1/1) ... [2024-11-28 04:46:22,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:22,966 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:22,977 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:22,984 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:22,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:23,012 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:46:23,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:23,089 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:23,094 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:23,096 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:46:23,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:23,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:46:23,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:23,296 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:46:23,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23 WrapperNode [2024-11-28 04:46:23,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:23,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:23,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:46:23,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:46:23,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,363 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 118 [2024-11-28 04:46:23,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:23,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:46:23,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:46:23,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:46:23,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,385 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,421 INFO L175 MemorySlicer]: Split 15 memory accesses to 3 slices as follows [2, 2, 11]. 73 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2024-11-28 04:46:23,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,448 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:46:23,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:46:23,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:46:23,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:46:23,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (1/1) ... [2024-11-28 04:46:23,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:23,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:23,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:46:23,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:46:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:46:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:46:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:46:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-28 04:46:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-28 04:46:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:46:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:46:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:46:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:46:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:46:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:46:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:46:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:46:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:46:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:46:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:46:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:46:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:46:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:46:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:46:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:46:23,557 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:46:23,926 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:46:23,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:46:24,547 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:46:24,547 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:46:24,768 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:46:24,768 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:46:24,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:24 BoogieIcfgContainer [2024-11-28 04:46:24,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:46:24,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:46:24,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:46:24,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:46:24,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:46:22" (1/3) ... [2024-11-28 04:46:24,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d41226d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:24, skipping insertion in model container [2024-11-28 04:46:24,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:23" (2/3) ... [2024-11-28 04:46:24,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d41226d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:24, skipping insertion in model container [2024-11-28 04:46:24,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:24" (3/3) ... [2024-11-28 04:46:24,787 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2024-11-28 04:46:24,803 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:46:24,805 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_2-container_of.i that has 2 procedures, 82 locations, 1 initial locations, 0 loop locations, and 31 error locations. [2024-11-28 04:46:24,805 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:46:24,925 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:46:24,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 104 transitions, 222 flow [2024-11-28 04:46:25,058 INFO L124 PetriNetUnfolderBase]: 14/137 cut-off events. [2024-11-28 04:46:25,064 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 04:46:25,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 14/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 435 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 63. Up to 4 conditions per place. [2024-11-28 04:46:25,069 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 104 transitions, 222 flow [2024-11-28 04:46:25,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 102 transitions, 216 flow [2024-11-28 04:46:25,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:46:25,102 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;@393a302, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:46:25,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-28 04:46:25,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:46:25,109 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 04:46:25,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:46:25,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:25,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 04:46:25,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:25,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash 425203, now seen corresponding path program 1 times [2024-11-28 04:46:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:25,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214386439] [2024-11-28 04:46:25,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:25,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:25,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:25,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:25,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:46:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:25,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:46:25,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:25,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:25,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:25,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:25,417 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:25,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214386439] [2024-11-28 04:46:25,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214386439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:25,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:46:25,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015510733] [2024-11-28 04:46:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:25,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:25,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:25,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:25,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:25,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 104 [2024-11-28 04:46:25,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 102 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:25,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:25,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 104 [2024-11-28 04:46:25,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:27,213 INFO L124 PetriNetUnfolderBase]: 3071/7663 cut-off events. [2024-11-28 04:46:27,213 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-28 04:46:27,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12575 conditions, 7663 events. 3071/7663 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 73970 event pairs, 407 based on Foata normal form. 584/5609 useless extension candidates. Maximal degree in co-relation 12356. Up to 4146 conditions per place. [2024-11-28 04:46:27,274 INFO L140 encePairwiseOnDemand]: 92/104 looper letters, 72 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-11-28 04:46:27,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 110 transitions, 380 flow [2024-11-28 04:46:27,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:27,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2024-11-28 04:46:27,288 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6346153846153846 [2024-11-28 04:46:27,289 INFO L175 Difference]: Start difference. First operand has 98 places, 102 transitions, 216 flow. Second operand 3 states and 198 transitions. [2024-11-28 04:46:27,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 110 transitions, 380 flow [2024-11-28 04:46:27,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 372 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:46:27,300 INFO L231 Difference]: Finished difference. Result has 90 places, 88 transitions, 184 flow [2024-11-28 04:46:27,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2024-11-28 04:46:27,306 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -8 predicate places. [2024-11-28 04:46:27,306 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 184 flow [2024-11-28 04:46:27,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:27,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:27,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 04:46:27,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:27,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:27,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:27,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:27,512 INFO L85 PathProgramCache]: Analyzing trace with hash 425204, now seen corresponding path program 1 times [2024-11-28 04:46:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:27,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907701456] [2024-11-28 04:46:27,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:27,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:27,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:27,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:27,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:46:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:27,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:46:27,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:27,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:27,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:27,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907701456] [2024-11-28 04:46:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907701456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:27,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:27,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:46:27,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993147731] [2024-11-28 04:46:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:27,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:27,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:27,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:27,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 104 [2024-11-28 04:46:27,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:27,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:27,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 104 [2024-11-28 04:46:27,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:29,120 INFO L124 PetriNetUnfolderBase]: 3071/7661 cut-off events. [2024-11-28 04:46:29,120 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-28 04:46:29,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12691 conditions, 7661 events. 3071/7661 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 73799 event pairs, 407 based on Foata normal form. 1/5024 useless extension candidates. Maximal degree in co-relation 1458. Up to 4146 conditions per place. [2024-11-28 04:46:29,169 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 71 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2024-11-28 04:46:29,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 108 transitions, 370 flow [2024-11-28 04:46:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2024-11-28 04:46:29,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-11-28 04:46:29,173 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 184 flow. Second operand 3 states and 192 transitions. [2024-11-28 04:46:29,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 108 transitions, 370 flow [2024-11-28 04:46:29,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 108 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:46:29,179 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 180 flow [2024-11-28 04:46:29,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-11-28 04:46:29,181 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -10 predicate places. [2024-11-28 04:46:29,182 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 180 flow [2024-11-28 04:46:29,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:29,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:29,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 04:46:29,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:46:29,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:29,383 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:29,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:29,383 INFO L85 PathProgramCache]: Analyzing trace with hash 13181125, now seen corresponding path program 1 times [2024-11-28 04:46:29,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:29,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230656764] [2024-11-28 04:46:29,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:29,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:29,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:29,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:29,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:46:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:29,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:46:29,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:29,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:29,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230656764] [2024-11-28 04:46:29,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230656764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:29,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:29,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:46:29,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181480392] [2024-11-28 04:46:29,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:29,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:29,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:29,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:29,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:29,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 104 [2024-11-28 04:46:29,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:29,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:29,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 104 [2024-11-28 04:46:29,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:30,589 INFO L124 PetriNetUnfolderBase]: 3335/6295 cut-off events. [2024-11-28 04:46:30,590 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-28 04:46:30,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11735 conditions, 6295 events. 3335/6295 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 45509 event pairs, 3069 based on Foata normal form. 0/4076 useless extension candidates. Maximal degree in co-relation 3604. Up to 4868 conditions per place. [2024-11-28 04:46:30,619 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 71 selfloop transitions, 3 changer transitions 2/109 dead transitions. [2024-11-28 04:46:30,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 376 flow [2024-11-28 04:46:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-11-28 04:46:30,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-11-28 04:46:30,621 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 180 flow. Second operand 3 states and 196 transitions. [2024-11-28 04:46:30,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 376 flow [2024-11-28 04:46:30,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 109 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:46:30,628 INFO L231 Difference]: Finished difference. Result has 89 places, 85 transitions, 185 flow [2024-11-28 04:46:30,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=89, PETRI_TRANSITIONS=85} [2024-11-28 04:46:30,629 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -9 predicate places. [2024-11-28 04:46:30,629 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 85 transitions, 185 flow [2024-11-28 04:46:30,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:30,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:30,629 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:30,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:30,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:30,835 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:30,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1612670941, now seen corresponding path program 1 times [2024-11-28 04:46:30,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:30,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412839389] [2024-11-28 04:46:30,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:30,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:30,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:30,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:30,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:46:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:30,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:46:30,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:31,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:31,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:31,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:31,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:31,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412839389] [2024-11-28 04:46:31,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412839389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:31,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:31,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:31,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855916055] [2024-11-28 04:46:31,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:31,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:31,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:31,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:31,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:31,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 104 [2024-11-28 04:46:31,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:31,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:31,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 104 [2024-11-28 04:46:31,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:32,980 INFO L124 PetriNetUnfolderBase]: 2554/6238 cut-off events. [2024-11-28 04:46:32,980 INFO L125 PetriNetUnfolderBase]: For 723/759 co-relation queries the response was YES. [2024-11-28 04:46:32,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10711 conditions, 6238 events. 2554/6238 cut-off events. For 723/759 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 56448 event pairs, 47 based on Foata normal form. 0/4242 useless extension candidates. Maximal degree in co-relation 9269. Up to 2287 conditions per place. [2024-11-28 04:46:33,014 INFO L140 encePairwiseOnDemand]: 92/104 looper letters, 135 selfloop transitions, 13 changer transitions 1/183 dead transitions. [2024-11-28 04:46:33,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 683 flow [2024-11-28 04:46:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:46:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:46:33,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 485 transitions. [2024-11-28 04:46:33,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5829326923076923 [2024-11-28 04:46:33,018 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 185 flow. Second operand 8 states and 485 transitions. [2024-11-28 04:46:33,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 683 flow [2024-11-28 04:46:33,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 183 transitions, 669 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 04:46:33,046 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 261 flow [2024-11-28 04:46:33,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=261, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-11-28 04:46:33,050 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -1 predicate places. [2024-11-28 04:46:33,051 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 261 flow [2024-11-28 04:46:33,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:33,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:33,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:33,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:46:33,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:33,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:33,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1612670942, now seen corresponding path program 1 times [2024-11-28 04:46:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1780525920] [2024-11-28 04:46:33,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:33,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:33,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:33,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:33,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:46:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:33,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:46:33,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:33,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:33,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:33,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:33,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:33,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780525920] [2024-11-28 04:46:33,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780525920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:33,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:33,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:33,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736262686] [2024-11-28 04:46:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:33,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:33,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:33,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:33,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:33,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 104 [2024-11-28 04:46:33,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:33,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:33,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 104 [2024-11-28 04:46:33,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:35,114 INFO L124 PetriNetUnfolderBase]: 1721/4271 cut-off events. [2024-11-28 04:46:35,114 INFO L125 PetriNetUnfolderBase]: For 1432/1432 co-relation queries the response was YES. [2024-11-28 04:46:35,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8298 conditions, 4271 events. 1721/4271 cut-off events. For 1432/1432 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 36371 event pairs, 95 based on Foata normal form. 450/3721 useless extension candidates. Maximal degree in co-relation 7164. Up to 1957 conditions per place. [2024-11-28 04:46:35,136 INFO L140 encePairwiseOnDemand]: 96/104 looper letters, 120 selfloop transitions, 10 changer transitions 2/166 dead transitions. [2024-11-28 04:46:35,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 166 transitions, 685 flow [2024-11-28 04:46:35,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:46:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:46:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 421 transitions. [2024-11-28 04:46:35,139 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5782967032967034 [2024-11-28 04:46:35,139 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 261 flow. Second operand 7 states and 421 transitions. [2024-11-28 04:46:35,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 166 transitions, 685 flow [2024-11-28 04:46:35,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 166 transitions, 685 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:35,151 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 312 flow [2024-11-28 04:46:35,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=312, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2024-11-28 04:46:35,152 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 8 predicate places. [2024-11-28 04:46:35,154 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 312 flow [2024-11-28 04:46:35,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:35,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:35,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:35,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:35,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:35,355 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:35,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1549885201, now seen corresponding path program 1 times [2024-11-28 04:46:35,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:35,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973708692] [2024-11-28 04:46:35,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:35,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:35,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:35,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:35,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:46:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:35,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:46:35,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:35,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:35,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:35,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:35,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973708692] [2024-11-28 04:46:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973708692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:35,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:35,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:46:35,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022577028] [2024-11-28 04:46:35,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:35,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:35,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:35,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:35,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:35,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 104 [2024-11-28 04:46:35,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:35,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:35,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 104 [2024-11-28 04:46:35,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:36,103 INFO L124 PetriNetUnfolderBase]: 1973/3899 cut-off events. [2024-11-28 04:46:36,103 INFO L125 PetriNetUnfolderBase]: For 3271/3271 co-relation queries the response was YES. [2024-11-28 04:46:36,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9077 conditions, 3899 events. 1973/3899 cut-off events. For 3271/3271 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 26631 event pairs, 1470 based on Foata normal form. 0/3246 useless extension candidates. Maximal degree in co-relation 7939. Up to 2462 conditions per place. [2024-11-28 04:46:36,121 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 73 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2024-11-28 04:46:36,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 105 transitions, 492 flow [2024-11-28 04:46:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:36,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:36,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-11-28 04:46:36,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5576923076923077 [2024-11-28 04:46:36,123 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 312 flow. Second operand 3 states and 174 transitions. [2024-11-28 04:46:36,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 105 transitions, 492 flow [2024-11-28 04:46:36,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 475 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:46:36,132 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 297 flow [2024-11-28 04:46:36,132 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-28 04:46:36,132 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-28 04:46:36,133 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 297 flow [2024-11-28 04:46:36,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:36,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:36,133 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:36,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:46:36,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:36,334 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:36,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:36,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1549885200, now seen corresponding path program 1 times [2024-11-28 04:46:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:36,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588468224] [2024-11-28 04:46:36,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:36,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:36,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:36,337 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:36,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:46:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:36,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:46:36,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:36,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:36,542 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:36,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:36,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588468224] [2024-11-28 04:46:36,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588468224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:36,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:36,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:46:36,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702772744] [2024-11-28 04:46:36,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:36,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:36,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:36,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:36,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:36,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 104 [2024-11-28 04:46:36,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 297 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) [2024-11-28 04:46:36,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:36,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 104 [2024-11-28 04:46:36,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:37,132 INFO L124 PetriNetUnfolderBase]: 1721/3468 cut-off events. [2024-11-28 04:46:37,132 INFO L125 PetriNetUnfolderBase]: For 2283/2283 co-relation queries the response was YES. [2024-11-28 04:46:37,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8092 conditions, 3468 events. 1721/3468 cut-off events. For 2283/2283 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 23713 event pairs, 1073 based on Foata normal form. 146/3011 useless extension candidates. Maximal degree in co-relation 6954. Up to 1744 conditions per place. [2024-11-28 04:46:37,147 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 84 selfloop transitions, 6 changer transitions 0/113 dead transitions. [2024-11-28 04:46:37,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 113 transitions, 531 flow [2024-11-28 04:46:37,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2024-11-28 04:46:37,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6057692307692307 [2024-11-28 04:46:37,149 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 297 flow. Second operand 3 states and 189 transitions. [2024-11-28 04:46:37,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 113 transitions, 531 flow [2024-11-28 04:46:37,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 113 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:46:37,156 INFO L231 Difference]: Finished difference. Result has 99 places, 92 transitions, 317 flow [2024-11-28 04:46:37,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2024-11-28 04:46:37,157 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 1 predicate places. [2024-11-28 04:46:37,157 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 317 flow [2024-11-28 04:46:37,157 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) [2024-11-28 04:46:37,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:37,157 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:37,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:37,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:37,358 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:37,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:37,359 INFO L85 PathProgramCache]: Analyzing trace with hash -707364457, now seen corresponding path program 1 times [2024-11-28 04:46:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:37,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259696089] [2024-11-28 04:46:37,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:37,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:37,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:37,363 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:37,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:46:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:37,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:46:37,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:37,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:37,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:37,570 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:37,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259696089] [2024-11-28 04:46:37,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259696089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:37,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:37,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:37,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498347982] [2024-11-28 04:46:37,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:37,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:37,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:37,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:37,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:37,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 104 [2024-11-28 04:46:37,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 317 flow. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:37,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:37,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 104 [2024-11-28 04:46:37,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:38,753 INFO L124 PetriNetUnfolderBase]: 1560/3300 cut-off events. [2024-11-28 04:46:38,753 INFO L125 PetriNetUnfolderBase]: For 2175/2175 co-relation queries the response was YES. [2024-11-28 04:46:38,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7794 conditions, 3300 events. 1560/3300 cut-off events. For 2175/2175 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 23308 event pairs, 149 based on Foata normal form. 0/2885 useless extension candidates. Maximal degree in co-relation 6691. Up to 1169 conditions per place. [2024-11-28 04:46:38,763 INFO L140 encePairwiseOnDemand]: 92/104 looper letters, 125 selfloop transitions, 17 changer transitions 0/171 dead transitions. [2024-11-28 04:46:38,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 171 transitions, 887 flow [2024-11-28 04:46:38,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:46:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:46:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 465 transitions. [2024-11-28 04:46:38,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5588942307692307 [2024-11-28 04:46:38,765 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 317 flow. Second operand 8 states and 465 transitions. [2024-11-28 04:46:38,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 171 transitions, 887 flow [2024-11-28 04:46:38,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 171 transitions, 877 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:46:38,780 INFO L231 Difference]: Finished difference. Result has 109 places, 101 transitions, 431 flow [2024-11-28 04:46:38,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=431, PETRI_PLACES=109, PETRI_TRANSITIONS=101} [2024-11-28 04:46:38,782 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 11 predicate places. [2024-11-28 04:46:38,782 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 101 transitions, 431 flow [2024-11-28 04:46:38,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:38,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:38,782 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:38,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:38,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:38,984 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:38,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:38,984 INFO L85 PathProgramCache]: Analyzing trace with hash -707364456, now seen corresponding path program 1 times [2024-11-28 04:46:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:38,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802511174] [2024-11-28 04:46:38,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:38,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:38,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:38,986 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:38,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:46:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:39,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:46:39,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:39,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:39,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:39,229 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:39,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802511174] [2024-11-28 04:46:39,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802511174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:39,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:39,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:39,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074120594] [2024-11-28 04:46:39,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:39,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:39,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:39,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:39,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:39,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 104 [2024-11-28 04:46:39,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 101 transitions, 431 flow. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:39,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:39,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 104 [2024-11-28 04:46:39,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:40,248 INFO L124 PetriNetUnfolderBase]: 1070/2320 cut-off events. [2024-11-28 04:46:40,249 INFO L125 PetriNetUnfolderBase]: For 3039/3039 co-relation queries the response was YES. [2024-11-28 04:46:40,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6278 conditions, 2320 events. 1070/2320 cut-off events. For 3039/3039 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 15343 event pairs, 251 based on Foata normal form. 292/2600 useless extension candidates. Maximal degree in co-relation 5434. Up to 1331 conditions per place. [2024-11-28 04:46:40,255 INFO L140 encePairwiseOnDemand]: 96/104 looper letters, 113 selfloop transitions, 14 changer transitions 1/157 dead transitions. [2024-11-28 04:46:40,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 157 transitions, 897 flow [2024-11-28 04:46:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:46:40,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:46:40,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 402 transitions. [2024-11-28 04:46:40,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5521978021978022 [2024-11-28 04:46:40,258 INFO L175 Difference]: Start difference. First operand has 109 places, 101 transitions, 431 flow. Second operand 7 states and 402 transitions. [2024-11-28 04:46:40,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 157 transitions, 897 flow [2024-11-28 04:46:40,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 894 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:46:40,268 INFO L231 Difference]: Finished difference. Result has 117 places, 104 transitions, 502 flow [2024-11-28 04:46:40,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=502, PETRI_PLACES=117, PETRI_TRANSITIONS=104} [2024-11-28 04:46:40,270 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 19 predicate places. [2024-11-28 04:46:40,270 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 104 transitions, 502 flow [2024-11-28 04:46:40,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:40,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:40,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:40,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:46:40,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:40,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:40,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:40,471 INFO L85 PathProgramCache]: Analyzing trace with hash -115806197, now seen corresponding path program 1 times [2024-11-28 04:46:40,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:40,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096318979] [2024-11-28 04:46:40,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:40,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:40,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:40,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:40,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:46:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:40,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:46:40,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:40,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:40,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:40,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:46:40,826 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 [2024-11-28 04:46:40,848 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:46:40,849 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 [2024-11-28 04:46:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:40,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:40,872 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096318979] [2024-11-28 04:46:40,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096318979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:40,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:40,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:40,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953619153] [2024-11-28 04:46:40,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:40,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:46:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:40,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:46:40,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:46:41,308 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 104 [2024-11-28 04:46:41,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 104 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:41,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:41,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 104 [2024-11-28 04:46:41,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:42,405 INFO L124 PetriNetUnfolderBase]: 1229/2612 cut-off events. [2024-11-28 04:46:42,406 INFO L125 PetriNetUnfolderBase]: For 4446/4446 co-relation queries the response was YES. [2024-11-28 04:46:42,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7531 conditions, 2612 events. 1229/2612 cut-off events. For 4446/4446 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17872 event pairs, 296 based on Foata normal form. 27/2627 useless extension candidates. Maximal degree in co-relation 6541. Up to 745 conditions per place. [2024-11-28 04:46:42,412 INFO L140 encePairwiseOnDemand]: 92/104 looper letters, 131 selfloop transitions, 18 changer transitions 0/178 dead transitions. [2024-11-28 04:46:42,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 178 transitions, 1090 flow [2024-11-28 04:46:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:46:42,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:46:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 506 transitions. [2024-11-28 04:46:42,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5405982905982906 [2024-11-28 04:46:42,415 INFO L175 Difference]: Start difference. First operand has 117 places, 104 transitions, 502 flow. Second operand 9 states and 506 transitions. [2024-11-28 04:46:42,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 178 transitions, 1090 flow [2024-11-28 04:46:42,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 178 transitions, 1050 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-28 04:46:42,426 INFO L231 Difference]: Finished difference. Result has 116 places, 102 transitions, 504 flow [2024-11-28 04:46:42,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=504, PETRI_PLACES=116, PETRI_TRANSITIONS=102} [2024-11-28 04:46:42,427 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 18 predicate places. [2024-11-28 04:46:42,427 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 102 transitions, 504 flow [2024-11-28 04:46:42,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:42,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:42,428 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:42,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:46:42,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:42,628 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:42,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1986062419, now seen corresponding path program 1 times [2024-11-28 04:46:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:42,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040020654] [2024-11-28 04:46:42,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:42,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:42,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:42,632 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:42,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:46:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:42,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:46:42,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:42,809 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 7 [2024-11-28 04:46:42,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:42,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:46:42,991 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 [2024-11-28 04:46:43,006 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:46:43,007 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 [2024-11-28 04:46:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:43,030 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:43,030 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:43,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040020654] [2024-11-28 04:46:43,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040020654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:43,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:43,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:43,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141900435] [2024-11-28 04:46:43,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:43,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:46:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:43,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:46:43,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:46:43,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 104 [2024-11-28 04:46:43,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 102 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:43,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:43,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 104 [2024-11-28 04:46:43,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:44,593 INFO L124 PetriNetUnfolderBase]: 1476/3057 cut-off events. [2024-11-28 04:46:44,593 INFO L125 PetriNetUnfolderBase]: For 5146/5146 co-relation queries the response was YES. [2024-11-28 04:46:44,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9173 conditions, 3057 events. 1476/3057 cut-off events. For 5146/5146 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 21674 event pairs, 488 based on Foata normal form. 24/3072 useless extension candidates. Maximal degree in co-relation 6586. Up to 701 conditions per place. [2024-11-28 04:46:44,602 INFO L140 encePairwiseOnDemand]: 92/104 looper letters, 133 selfloop transitions, 18 changer transitions 0/180 dead transitions. [2024-11-28 04:46:44,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 180 transitions, 1124 flow [2024-11-28 04:46:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:46:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:46:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 505 transitions. [2024-11-28 04:46:44,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5395299145299145 [2024-11-28 04:46:44,604 INFO L175 Difference]: Start difference. First operand has 116 places, 102 transitions, 504 flow. Second operand 9 states and 505 transitions. [2024-11-28 04:46:44,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 180 transitions, 1124 flow [2024-11-28 04:46:44,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 180 transitions, 1080 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-28 04:46:44,620 INFO L231 Difference]: Finished difference. Result has 114 places, 100 transitions, 500 flow [2024-11-28 04:46:44,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=500, PETRI_PLACES=114, PETRI_TRANSITIONS=100} [2024-11-28 04:46:44,621 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 16 predicate places. [2024-11-28 04:46:44,621 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 100 transitions, 500 flow [2024-11-28 04:46:44,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:44,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:44,621 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:44,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:44,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:44,822 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:44,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:44,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1524540013, now seen corresponding path program 1 times [2024-11-28 04:46:44,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:44,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914239000] [2024-11-28 04:46:44,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:44,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:44,825 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:44,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:46:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:44,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:46:44,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:44,995 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:44,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:44,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:45,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-28 04:46:45,050 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:45,051 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:45,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:45,061 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 78 treesize of output 83 [2024-11-28 04:46:45,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:45,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 151 treesize of output 61 [2024-11-28 04:46:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:45,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:45,212 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914239000] [2024-11-28 04:46:45,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914239000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:45,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:45,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:45,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250877938] [2024-11-28 04:46:45,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:45,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:45,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:45,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:45,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:45,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 104 [2024-11-28 04:46:45,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 100 transitions, 500 flow. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:45,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:45,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 104 [2024-11-28 04:46:45,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:48,654 INFO L124 PetriNetUnfolderBase]: 1952/3743 cut-off events. [2024-11-28 04:46:48,655 INFO L125 PetriNetUnfolderBase]: For 6943/6943 co-relation queries the response was YES. [2024-11-28 04:46:48,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11641 conditions, 3743 events. 1952/3743 cut-off events. For 6943/6943 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 26201 event pairs, 1130 based on Foata normal form. 70/3797 useless extension candidates. Maximal degree in co-relation 8657. Up to 2864 conditions per place. [2024-11-28 04:46:48,666 INFO L140 encePairwiseOnDemand]: 94/104 looper letters, 100 selfloop transitions, 23 changer transitions 0/149 dead transitions. [2024-11-28 04:46:48,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 149 transitions, 980 flow [2024-11-28 04:46:48,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:46:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:46:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 325 transitions. [2024-11-28 04:46:48,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-28 04:46:48,668 INFO L175 Difference]: Start difference. First operand has 114 places, 100 transitions, 500 flow. Second operand 6 states and 325 transitions. [2024-11-28 04:46:48,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 149 transitions, 980 flow [2024-11-28 04:46:48,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 149 transitions, 941 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-28 04:46:48,679 INFO L231 Difference]: Finished difference. Result has 117 places, 123 transitions, 695 flow [2024-11-28 04:46:48,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=695, PETRI_PLACES=117, PETRI_TRANSITIONS=123} [2024-11-28 04:46:48,680 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 19 predicate places. [2024-11-28 04:46:48,680 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 123 transitions, 695 flow [2024-11-28 04:46:48,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:48,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:48,680 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:48,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:46:48,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:48,881 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:48,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:48,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1746109783, now seen corresponding path program 1 times [2024-11-28 04:46:48,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:48,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707853194] [2024-11-28 04:46:48,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:48,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:48,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:48,883 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:48,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:46:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:49,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:46:49,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:49,055 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:49,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:49,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:49,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-28 04:46:49,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:49,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 121 treesize of output 49 [2024-11-28 04:46:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:49,260 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:49,260 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:49,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707853194] [2024-11-28 04:46:49,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707853194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:49,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:49,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:49,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657258761] [2024-11-28 04:46:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:49,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:49,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:49,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:49,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:49,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 104 [2024-11-28 04:46:49,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 123 transitions, 695 flow. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:49,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:49,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 104 [2024-11-28 04:46:49,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:51,556 INFO L124 PetriNetUnfolderBase]: 2688/4893 cut-off events. [2024-11-28 04:46:51,556 INFO L125 PetriNetUnfolderBase]: For 10002/10010 co-relation queries the response was YES. [2024-11-28 04:46:51,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16937 conditions, 4893 events. 2688/4893 cut-off events. For 10002/10010 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 33274 event pairs, 1258 based on Foata normal form. 8/4851 useless extension candidates. Maximal degree in co-relation 15073. Up to 3314 conditions per place. [2024-11-28 04:46:51,572 INFO L140 encePairwiseOnDemand]: 93/104 looper letters, 117 selfloop transitions, 50 changer transitions 0/190 dead transitions. [2024-11-28 04:46:51,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 190 transitions, 1440 flow [2024-11-28 04:46:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:46:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:46:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 313 transitions. [2024-11-28 04:46:51,574 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5016025641025641 [2024-11-28 04:46:51,575 INFO L175 Difference]: Start difference. First operand has 117 places, 123 transitions, 695 flow. Second operand 6 states and 313 transitions. [2024-11-28 04:46:51,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 190 transitions, 1440 flow [2024-11-28 04:46:51,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 190 transitions, 1440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:51,599 INFO L231 Difference]: Finished difference. Result has 126 places, 159 transitions, 1172 flow [2024-11-28 04:46:51,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1172, PETRI_PLACES=126, PETRI_TRANSITIONS=159} [2024-11-28 04:46:51,600 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 28 predicate places. [2024-11-28 04:46:51,600 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 159 transitions, 1172 flow [2024-11-28 04:46:51,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:51,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:51,601 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:51,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:51,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:51,801 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:51,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1705197008, now seen corresponding path program 1 times [2024-11-28 04:46:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:51,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068504007] [2024-11-28 04:46:51,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:51,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:51,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:51,807 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:51,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:46:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:51,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:46:51,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:52,103 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_85| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_85| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_85|)))) is different from true [2024-11-28 04:46:52,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:52,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:52,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:52,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068504007] [2024-11-28 04:46:52,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068504007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:52,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:52,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:52,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294042224] [2024-11-28 04:46:52,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:52,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:52,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:52,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:52,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-28 04:46:52,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 104 [2024-11-28 04:46:52,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 159 transitions, 1172 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:52,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:52,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 104 [2024-11-28 04:46:52,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:53,361 INFO L124 PetriNetUnfolderBase]: 2357/4502 cut-off events. [2024-11-28 04:46:53,361 INFO L125 PetriNetUnfolderBase]: For 13816/13819 co-relation queries the response was YES. [2024-11-28 04:46:53,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17675 conditions, 4502 events. 2357/4502 cut-off events. For 13816/13819 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 31917 event pairs, 911 based on Foata normal form. 0/4473 useless extension candidates. Maximal degree in co-relation 15766. Up to 2131 conditions per place. [2024-11-28 04:46:53,380 INFO L140 encePairwiseOnDemand]: 82/104 looper letters, 140 selfloop transitions, 36 changer transitions 4/197 dead transitions. [2024-11-28 04:46:53,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 197 transitions, 1764 flow [2024-11-28 04:46:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:53,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:46:53,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 210 transitions. [2024-11-28 04:46:53,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40384615384615385 [2024-11-28 04:46:53,381 INFO L175 Difference]: Start difference. First operand has 126 places, 159 transitions, 1172 flow. Second operand 5 states and 210 transitions. [2024-11-28 04:46:53,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 197 transitions, 1764 flow [2024-11-28 04:46:53,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 197 transitions, 1758 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-28 04:46:53,438 INFO L231 Difference]: Finished difference. Result has 133 places, 173 transitions, 1427 flow [2024-11-28 04:46:53,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1427, PETRI_PLACES=133, PETRI_TRANSITIONS=173} [2024-11-28 04:46:53,439 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 35 predicate places. [2024-11-28 04:46:53,439 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 173 transitions, 1427 flow [2024-11-28 04:46:53,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:53,439 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:53,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:53,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:46:53,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:53,640 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:53,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1414043803, now seen corresponding path program 1 times [2024-11-28 04:46:53,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:53,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109336832] [2024-11-28 04:46:53,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:53,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:53,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:53,643 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:53,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:46:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:53,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:46:53,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:53,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:53,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:53,838 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:53,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109336832] [2024-11-28 04:46:53,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109336832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:53,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:53,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:46:53,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715582220] [2024-11-28 04:46:53,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:53,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:53,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:53,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:53,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:53,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 104 [2024-11-28 04:46:53,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 173 transitions, 1427 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:53,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:53,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 104 [2024-11-28 04:46:53,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:54,642 INFO L124 PetriNetUnfolderBase]: 2248/4323 cut-off events. [2024-11-28 04:46:54,643 INFO L125 PetriNetUnfolderBase]: For 17745/17820 co-relation queries the response was YES. [2024-11-28 04:46:54,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19110 conditions, 4323 events. 2248/4323 cut-off events. For 17745/17820 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 30707 event pairs, 1079 based on Foata normal form. 7/4248 useless extension candidates. Maximal degree in co-relation 17150. Up to 3664 conditions per place. [2024-11-28 04:46:54,659 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 145 selfloop transitions, 5 changer transitions 0/179 dead transitions. [2024-11-28 04:46:54,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 179 transitions, 1771 flow [2024-11-28 04:46:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2024-11-28 04:46:54,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2024-11-28 04:46:54,660 INFO L175 Difference]: Start difference. First operand has 133 places, 173 transitions, 1427 flow. Second operand 3 states and 173 transitions. [2024-11-28 04:46:54,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 179 transitions, 1771 flow [2024-11-28 04:46:54,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 179 transitions, 1691 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-28 04:46:54,716 INFO L231 Difference]: Finished difference. Result has 129 places, 171 transitions, 1353 flow [2024-11-28 04:46:54,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1353, PETRI_PLACES=129, PETRI_TRANSITIONS=171} [2024-11-28 04:46:54,716 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 31 predicate places. [2024-11-28 04:46:54,716 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 171 transitions, 1353 flow [2024-11-28 04:46:54,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:54,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:54,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:54,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:54,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:54,917 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:54,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:54,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1414043802, now seen corresponding path program 1 times [2024-11-28 04:46:54,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:54,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810233388] [2024-11-28 04:46:54,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:54,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:54,920 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:54,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:46:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:55,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:46:55,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:55,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:55,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:55,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:55,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810233388] [2024-11-28 04:46:55,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810233388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:55,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:55,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:46:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511131616] [2024-11-28 04:46:55,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:55,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:55,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:55,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:55,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:55,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 104 [2024-11-28 04:46:55,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 171 transitions, 1353 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:55,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:55,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 104 [2024-11-28 04:46:55,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:55,897 INFO L124 PetriNetUnfolderBase]: 2248/4316 cut-off events. [2024-11-28 04:46:55,897 INFO L125 PetriNetUnfolderBase]: For 16295/16370 co-relation queries the response was YES. [2024-11-28 04:46:55,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18861 conditions, 4316 events. 2248/4316 cut-off events. For 16295/16370 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 30578 event pairs, 1079 based on Foata normal form. 7/4241 useless extension candidates. Maximal degree in co-relation 18293. Up to 3664 conditions per place. [2024-11-28 04:46:55,915 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 145 selfloop transitions, 5 changer transitions 0/177 dead transitions. [2024-11-28 04:46:55,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 177 transitions, 1697 flow [2024-11-28 04:46:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:46:55,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2024-11-28 04:46:55,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2024-11-28 04:46:55,916 INFO L175 Difference]: Start difference. First operand has 129 places, 171 transitions, 1353 flow. Second operand 3 states and 173 transitions. [2024-11-28 04:46:55,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 177 transitions, 1697 flow [2024-11-28 04:46:55,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 177 transitions, 1687 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:46:55,975 INFO L231 Difference]: Finished difference. Result has 127 places, 169 transitions, 1349 flow [2024-11-28 04:46:55,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1339, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1349, PETRI_PLACES=127, PETRI_TRANSITIONS=169} [2024-11-28 04:46:55,976 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 29 predicate places. [2024-11-28 04:46:55,976 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 169 transitions, 1349 flow [2024-11-28 04:46:55,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:55,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:55,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:55,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:46:56,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:56,177 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:56,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:56,177 INFO L85 PathProgramCache]: Analyzing trace with hash -614483816, now seen corresponding path program 1 times [2024-11-28 04:46:56,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:56,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198618405] [2024-11-28 04:46:56,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:56,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:56,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:56,179 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:56,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:46:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:56,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:46:56,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:56,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:56,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198618405] [2024-11-28 04:46:56,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198618405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:56,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:56,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492656679] [2024-11-28 04:46:56,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:56,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:46:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:56,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:46:56,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:46:56,374 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 104 [2024-11-28 04:46:56,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 169 transitions, 1349 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:56,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:56,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 104 [2024-11-28 04:46:56,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:56,750 INFO L124 PetriNetUnfolderBase]: 225/430 cut-off events. [2024-11-28 04:46:56,751 INFO L125 PetriNetUnfolderBase]: For 1037/1037 co-relation queries the response was YES. [2024-11-28 04:46:56,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1709 conditions, 430 events. 225/430 cut-off events. For 1037/1037 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1472 event pairs, 35 based on Foata normal form. 36/465 useless extension candidates. Maximal degree in co-relation 1681. Up to 226 conditions per place. [2024-11-28 04:46:56,753 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 57 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2024-11-28 04:46:56,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 83 transitions, 565 flow [2024-11-28 04:46:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:46:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:46:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2024-11-28 04:46:56,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5192307692307693 [2024-11-28 04:46:56,755 INFO L175 Difference]: Start difference. First operand has 127 places, 169 transitions, 1349 flow. Second operand 4 states and 216 transitions. [2024-11-28 04:46:56,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 83 transitions, 565 flow [2024-11-28 04:46:56,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 378 flow, removed 38 selfloop flow, removed 32 redundant places. [2024-11-28 04:46:56,758 INFO L231 Difference]: Finished difference. Result has 78 places, 65 transitions, 202 flow [2024-11-28 04:46:56,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=78, PETRI_TRANSITIONS=65} [2024-11-28 04:46:56,759 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -20 predicate places. [2024-11-28 04:46:56,759 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 65 transitions, 202 flow [2024-11-28 04:46:56,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:56,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:56,759 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:56,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:46:56,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:56,960 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:56,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:56,961 INFO L85 PathProgramCache]: Analyzing trace with hash -324214618, now seen corresponding path program 1 times [2024-11-28 04:46:56,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:56,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472860005] [2024-11-28 04:46:56,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:56,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:56,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:56,963 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:56,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:46:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:57,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:46:57,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:57,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:46:57,274 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 04:46:57,274 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 [2024-11-28 04:46:57,313 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 16 treesize of output 13 [2024-11-28 04:46:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:57,317 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:57,317 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:57,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472860005] [2024-11-28 04:46:57,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472860005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:57,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:57,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:57,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153232309] [2024-11-28 04:46:57,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:57,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:46:57,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:57,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:46:57,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:46:57,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 104 [2024-11-28 04:46:57,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 65 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:57,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:57,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 104 [2024-11-28 04:46:57,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:57,726 INFO L124 PetriNetUnfolderBase]: 225/429 cut-off events. [2024-11-28 04:46:57,726 INFO L125 PetriNetUnfolderBase]: For 377/377 co-relation queries the response was YES. [2024-11-28 04:46:57,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 429 events. 225/429 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1377 event pairs, 143 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 1204. Up to 291 conditions per place. [2024-11-28 04:46:57,727 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 48 selfloop transitions, 7 changer transitions 0/72 dead transitions. [2024-11-28 04:46:57,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 338 flow [2024-11-28 04:46:57,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:46:57,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:46:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2024-11-28 04:46:57,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41346153846153844 [2024-11-28 04:46:57,729 INFO L175 Difference]: Start difference. First operand has 78 places, 65 transitions, 202 flow. Second operand 4 states and 172 transitions. [2024-11-28 04:46:57,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 338 flow [2024-11-28 04:46:57,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 72 transitions, 326 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:46:57,731 INFO L231 Difference]: Finished difference. Result has 77 places, 64 transitions, 202 flow [2024-11-28 04:46:57,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=77, PETRI_TRANSITIONS=64} [2024-11-28 04:46:57,731 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -21 predicate places. [2024-11-28 04:46:57,731 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 64 transitions, 202 flow [2024-11-28 04:46:57,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:57,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:57,732 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:57,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:46:57,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:57,932 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:57,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:57,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1629215453, now seen corresponding path program 1 times [2024-11-28 04:46:57,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:57,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379276066] [2024-11-28 04:46:57,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:57,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:57,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:57,936 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:57,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:46:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:58,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:46:58,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:58,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:58,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:46:58,417 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 [2024-11-28 04:46:58,433 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:46:58,433 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 [2024-11-28 04:46:58,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:58,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:58,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:46:58,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379276066] [2024-11-28 04:46:58,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379276066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:58,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:58,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:46:58,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633702922] [2024-11-28 04:46:58,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:58,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:58,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:46:58,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:58,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:58,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 104 [2024-11-28 04:46:58,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 64 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:58,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:46:58,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 104 [2024-11-28 04:46:58,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:46:59,014 INFO L124 PetriNetUnfolderBase]: 225/423 cut-off events. [2024-11-28 04:46:59,015 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2024-11-28 04:46:59,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 423 events. 225/423 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1398 event pairs, 95 based on Foata normal form. 1/424 useless extension candidates. Maximal degree in co-relation 1165. Up to 227 conditions per place. [2024-11-28 04:46:59,016 INFO L140 encePairwiseOnDemand]: 93/104 looper letters, 48 selfloop transitions, 8 changer transitions 0/66 dead transitions. [2024-11-28 04:46:59,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 66 transitions, 330 flow [2024-11-28 04:46:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:46:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-11-28 04:46:59,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35384615384615387 [2024-11-28 04:46:59,018 INFO L175 Difference]: Start difference. First operand has 77 places, 64 transitions, 202 flow. Second operand 5 states and 184 transitions. [2024-11-28 04:46:59,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 66 transitions, 330 flow [2024-11-28 04:46:59,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 66 transitions, 316 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:46:59,020 INFO L231 Difference]: Finished difference. Result has 72 places, 58 transitions, 192 flow [2024-11-28 04:46:59,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2024-11-28 04:46:59,020 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, -26 predicate places. [2024-11-28 04:46:59,020 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 192 flow [2024-11-28 04:46:59,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:59,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:46:59,020 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:59,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:59,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:59,221 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:46:59,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1892807652, now seen corresponding path program 1 times [2024-11-28 04:46:59,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043149336] [2024-11-28 04:46:59,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:59,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:59,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:59,224 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:59,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:46:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:59,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:46:59,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:59,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:59,540 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:59,541 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:59,542 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:59,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:46:59,968 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:59,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:47:00,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:47:00,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:47:00,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:47:00,416 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:00,416 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:00,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:47:00,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 112 [2024-11-28 04:47:00,767 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:47:00,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:00,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:47:02,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:02,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:47:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:02,221 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:02,221 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:02,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043149336] [2024-11-28 04:47:02,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043149336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:02,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:02,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:47:02,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056377083] [2024-11-28 04:47:02,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:02,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:47:02,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:02,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:47:02,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:47:04,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:47:04,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 192 flow. Second operand has 15 states, 15 states have (on average 31.8) internal successors, (477), 15 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:04,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:47:04,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:47:04,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:47:13,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:15,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:17,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:18,124 INFO L124 PetriNetUnfolderBase]: 438/803 cut-off events. [2024-11-28 04:47:18,124 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-28 04:47:18,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2202 conditions, 803 events. 438/803 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3320 event pairs, 12 based on Foata normal form. 1/804 useless extension candidates. Maximal degree in co-relation 2191. Up to 257 conditions per place. [2024-11-28 04:47:18,127 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 108 selfloop transitions, 67 changer transitions 0/185 dead transitions. [2024-11-28 04:47:18,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 185 transitions, 1011 flow [2024-11-28 04:47:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:47:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:47:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 790 transitions. [2024-11-28 04:47:18,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3617216117216117 [2024-11-28 04:47:18,131 INFO L175 Difference]: Start difference. First operand has 72 places, 58 transitions, 192 flow. Second operand 21 states and 790 transitions. [2024-11-28 04:47:18,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 185 transitions, 1011 flow [2024-11-28 04:47:18,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 185 transitions, 965 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:47:18,134 INFO L231 Difference]: Finished difference. Result has 98 places, 129 transitions, 728 flow [2024-11-28 04:47:18,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=728, PETRI_PLACES=98, PETRI_TRANSITIONS=129} [2024-11-28 04:47:18,135 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-28 04:47:18,135 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 129 transitions, 728 flow [2024-11-28 04:47:18,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 31.8) internal successors, (477), 15 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:18,135 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:47:18,135 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:18,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:18,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:18,336 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:47:18,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash -335229726, now seen corresponding path program 2 times [2024-11-28 04:47:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612566283] [2024-11-28 04:47:18,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:18,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:18,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:18,341 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:18,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:47:18,562 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:47:18,562 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:18,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 04:47:18,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:18,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:47:18,639 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:18,640 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:18,640 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:18,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:47:19,202 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:19,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:47:19,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-28 04:47:19,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:47:19,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:47:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:47:19,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:19,379 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:47:19,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:47:19,477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:47:19,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:19,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-11-28 04:47:25,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:25,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:47:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:25,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:25,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612566283] [2024-11-28 04:47:25,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612566283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:25,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:25,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:47:25,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510898437] [2024-11-28 04:47:25,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:25,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:47:25,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:25,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:47:25,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=148, Unknown=2, NotChecked=0, Total=182 [2024-11-28 04:47:28,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:31,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:34,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:37,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:41,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:43,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:46,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:50,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:53,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:56,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:59,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:01,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:04,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:06,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:10,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:13,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:13,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 104 [2024-11-28 04:48:13,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 129 transitions, 728 flow. Second operand has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:13,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:48:13,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 104 [2024-11-28 04:48:13,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:48:21,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:31,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:35,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:39,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:49,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:53,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:48:59,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:03,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:07,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:11,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:16,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:20,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:24,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:27,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:31,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:35,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:36,730 INFO L124 PetriNetUnfolderBase]: 739/1333 cut-off events. [2024-11-28 04:49:36,730 INFO L125 PetriNetUnfolderBase]: For 1745/1745 co-relation queries the response was YES. [2024-11-28 04:49:36,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4563 conditions, 1333 events. 739/1333 cut-off events. For 1745/1745 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6481 event pairs, 100 based on Foata normal form. 1/1331 useless extension candidates. Maximal degree in co-relation 4542. Up to 456 conditions per place. [2024-11-28 04:49:36,737 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 171 selfloop transitions, 107 changer transitions 0/284 dead transitions. [2024-11-28 04:49:36,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 284 transitions, 2077 flow [2024-11-28 04:49:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:49:36,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-28 04:49:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 570 transitions. [2024-11-28 04:49:36,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2283653846153846 [2024-11-28 04:49:36,740 INFO L175 Difference]: Start difference. First operand has 98 places, 129 transitions, 728 flow. Second operand 24 states and 570 transitions. [2024-11-28 04:49:36,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 284 transitions, 2077 flow [2024-11-28 04:49:36,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 284 transitions, 1931 flow, removed 72 selfloop flow, removed 1 redundant places. [2024-11-28 04:49:36,755 INFO L231 Difference]: Finished difference. Result has 137 places, 204 transitions, 1503 flow [2024-11-28 04:49:36,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1503, PETRI_PLACES=137, PETRI_TRANSITIONS=204} [2024-11-28 04:49:36,756 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 39 predicate places. [2024-11-28 04:49:36,756 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 204 transitions, 1503 flow [2024-11-28 04:49:36,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:36,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:49:36,756 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:36,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:49:36,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:36,957 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:49:36,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:36,957 INFO L85 PathProgramCache]: Analyzing trace with hash 881973136, now seen corresponding path program 3 times [2024-11-28 04:49:36,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:36,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585385117] [2024-11-28 04:49:36,958 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:49:36,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:36,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:36,960 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:36,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:49:37,193 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:49:37,193 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:37,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:49:37,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:37,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:49:37,288 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:49:37,288 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:49:37,289 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:49:37,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:49:37,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:49:37,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:49:38,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:49:38,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:49:38,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:49:38,240 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:49:38,240 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:49:38,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:49:38,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 115 [2024-11-28 04:49:38,647 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:49:38,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:38,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:49:40,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:40,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:49:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:49:40,492 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:49:40,492 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:40,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585385117] [2024-11-28 04:49:40,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585385117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:40,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:40,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:49:40,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111450986] [2024-11-28 04:49:40,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:40,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:49:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:40,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:49:40,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:49:42,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:49:42,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 204 transitions, 1503 flow. Second operand has 15 states, 15 states have (on average 31.8) internal successors, (477), 15 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:42,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:49:42,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:49:42,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:49:51,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:54,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:57,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:49:59,839 INFO L124 PetriNetUnfolderBase]: 889/1618 cut-off events. [2024-11-28 04:49:59,839 INFO L125 PetriNetUnfolderBase]: For 3906/3906 co-relation queries the response was YES. [2024-11-28 04:49:59,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6359 conditions, 1618 events. 889/1618 cut-off events. For 3906/3906 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8367 event pairs, 51 based on Foata normal form. 1/1619 useless extension candidates. Maximal degree in co-relation 6320. Up to 764 conditions per place. [2024-11-28 04:49:59,849 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 200 selfloop transitions, 115 changer transitions 0/325 dead transitions. [2024-11-28 04:49:59,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 325 transitions, 2855 flow [2024-11-28 04:49:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:49:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:49:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 677 transitions. [2024-11-28 04:49:59,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36164529914529914 [2024-11-28 04:49:59,851 INFO L175 Difference]: Start difference. First operand has 137 places, 204 transitions, 1503 flow. Second operand 18 states and 677 transitions. [2024-11-28 04:49:59,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 325 transitions, 2855 flow [2024-11-28 04:49:59,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 325 transitions, 2787 flow, removed 33 selfloop flow, removed 1 redundant places. [2024-11-28 04:49:59,887 INFO L231 Difference]: Finished difference. Result has 164 places, 265 transitions, 2341 flow [2024-11-28 04:49:59,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1437, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2341, PETRI_PLACES=164, PETRI_TRANSITIONS=265} [2024-11-28 04:49:59,888 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 66 predicate places. [2024-11-28 04:49:59,888 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 265 transitions, 2341 flow [2024-11-28 04:49:59,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 31.8) internal successors, (477), 15 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:59,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:49:59,889 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:59,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:50:00,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:00,089 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:50:00,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1814340624, now seen corresponding path program 4 times [2024-11-28 04:50:00,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:00,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98363682] [2024-11-28 04:50:00,090 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:50:00,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:00,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:00,092 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:00,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:50:00,352 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:50:00,352 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:00,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 04:50:00,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:00,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:50:00,436 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:50:00,437 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:50:00,437 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:50:00,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:50:00,757 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:50:00,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:50:01,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-28 04:50:01,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:50:01,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:50:01,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:50:01,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:50:01,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:50:01,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:50:01,243 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:50:01,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:50:01,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-11-28 04:50:09,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:50:09,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:50:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:50:09,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:09,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:09,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98363682] [2024-11-28 04:50:09,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98363682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:09,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:09,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:50:09,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545436878] [2024-11-28 04:50:09,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:09,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:50:09,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:09,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:50:09,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=148, Unknown=2, NotChecked=0, Total=182 [2024-11-28 04:50:13,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:17,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:20,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:23,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:27,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:30,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:34,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:38,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:42,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:46,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:50,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:54,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:50:58,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:01,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:01,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 104 [2024-11-28 04:51:01,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 265 transitions, 2341 flow. Second operand has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:01,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:51:01,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 104 [2024-11-28 04:51:01,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:51:09,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:26,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:30,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:34,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:40,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:44,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:48,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:52,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:57,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:01,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:05,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:09,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:13,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:13,901 INFO L124 PetriNetUnfolderBase]: 1209/2270 cut-off events. [2024-11-28 04:52:13,901 INFO L125 PetriNetUnfolderBase]: For 8305/8305 co-relation queries the response was YES. [2024-11-28 04:52:13,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9766 conditions, 2270 events. 1209/2270 cut-off events. For 8305/8305 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13241 event pairs, 67 based on Foata normal form. 1/2264 useless extension candidates. Maximal degree in co-relation 9715. Up to 545 conditions per place. [2024-11-28 04:52:13,911 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 206 selfloop transitions, 257 changer transitions 0/469 dead transitions. [2024-11-28 04:52:13,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 469 transitions, 4707 flow [2024-11-28 04:52:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:52:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-28 04:52:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 657 transitions. [2024-11-28 04:52:13,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21783819628647214 [2024-11-28 04:52:13,914 INFO L175 Difference]: Start difference. First operand has 164 places, 265 transitions, 2341 flow. Second operand 29 states and 657 transitions. [2024-11-28 04:52:13,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 469 transitions, 4707 flow [2024-11-28 04:52:13,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 469 transitions, 4639 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-28 04:52:13,967 INFO L231 Difference]: Finished difference. Result has 198 places, 378 transitions, 4172 flow [2024-11-28 04:52:13,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=2279, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=4172, PETRI_PLACES=198, PETRI_TRANSITIONS=378} [2024-11-28 04:52:13,968 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 100 predicate places. [2024-11-28 04:52:13,968 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 378 transitions, 4172 flow [2024-11-28 04:52:13,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:52:13,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:52:13,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:13,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:14,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:14,169 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:52:14,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:14,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1462990844, now seen corresponding path program 5 times [2024-11-28 04:52:14,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:14,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126565868] [2024-11-28 04:52:14,170 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:52:14,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:14,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:14,172 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:14,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:52:14,423 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:52:14,423 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:14,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 04:52:14,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:14,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:52:14,511 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:52:14,511 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:52:14,512 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:52:14,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:52:14,816 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:52:14,829 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:52:14,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:52:14,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2024-11-28 04:52:15,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:52:15,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:52:15,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:52:15,059 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:52:15,060 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:52:15,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:52:15,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:52:15,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-11-28 04:52:18,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:52:18,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:52:18,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:52:18,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:18,186 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126565868] [2024-11-28 04:52:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126565868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:18,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:52:18,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253818232] [2024-11-28 04:52:18,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:18,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:52:18,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:18,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:52:18,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=124, Unknown=1, NotChecked=0, Total=156 [2024-11-28 04:52:21,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:24,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:28,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:31,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:34,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:39,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:43,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:46,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:49,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:53,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:52:56,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:00,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:03,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:06,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:06,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 104 [2024-11-28 04:53:06,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 378 transitions, 4172 flow. Second operand has 13 states, 13 states have (on average 18.076923076923077) internal successors, (235), 13 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:06,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:53:06,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 104 [2024-11-28 04:53:06,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:53:14,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:30,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:33,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:37,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:42,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:46,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:50,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:54,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:53:55,423 INFO L124 PetriNetUnfolderBase]: 1477/2928 cut-off events. [2024-11-28 04:53:55,423 INFO L125 PetriNetUnfolderBase]: For 17639/17639 co-relation queries the response was YES. [2024-11-28 04:53:55,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14297 conditions, 2928 events. 1477/2928 cut-off events. For 17639/17639 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 19124 event pairs, 206 based on Foata normal form. 1/2915 useless extension candidates. Maximal degree in co-relation 14236. Up to 893 conditions per place. [2024-11-28 04:53:55,445 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 277 selfloop transitions, 229 changer transitions 0/512 dead transitions. [2024-11-28 04:53:55,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 512 transitions, 6222 flow [2024-11-28 04:53:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:53:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-28 04:53:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 539 transitions. [2024-11-28 04:53:55,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21594551282051283 [2024-11-28 04:53:55,448 INFO L175 Difference]: Start difference. First operand has 198 places, 378 transitions, 4172 flow. Second operand 24 states and 539 transitions. [2024-11-28 04:53:55,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 512 transitions, 6222 flow [2024-11-28 04:53:55,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 512 transitions, 5746 flow, removed 95 selfloop flow, removed 14 redundant places. [2024-11-28 04:53:55,634 INFO L231 Difference]: Finished difference. Result has 211 places, 424 transitions, 5016 flow [2024-11-28 04:53:55,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=3741, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5016, PETRI_PLACES=211, PETRI_TRANSITIONS=424} [2024-11-28 04:53:55,635 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 113 predicate places. [2024-11-28 04:53:55,635 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 424 transitions, 5016 flow [2024-11-28 04:53:55,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.076923076923077) internal successors, (235), 13 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:55,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:53:55,636 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:55,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:53:55,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:55,836 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:53:55,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1220631536, now seen corresponding path program 6 times [2024-11-28 04:53:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:53:55,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848054386] [2024-11-28 04:53:55,837 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:53:55,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:55,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:55,840 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:55,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:53:56,123 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:53:56,123 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:56,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:53:56,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:56,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:53:56,229 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:53:56,229 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:53:56,230 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:53:56,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:53:56,627 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:53:56,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:53:57,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:53:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:53:57,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:53:57,210 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:53:57,211 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:53:57,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:53:57,463 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:53:57,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 04:53:57,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:53:57,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 04:53:58,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:53:58,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 04:53:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:58,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:58,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:53:58,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848054386] [2024-11-28 04:53:58,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848054386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:58,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:58,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:53:58,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409653910] [2024-11-28 04:53:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:53:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:53:58,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:53:58,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:54:00,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:54:00,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 424 transitions, 5016 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:00,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:54:00,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:54:00,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:54:11,236 INFO L124 PetriNetUnfolderBase]: 1683/3316 cut-off events. [2024-11-28 04:54:11,236 INFO L125 PetriNetUnfolderBase]: For 22862/22862 co-relation queries the response was YES. [2024-11-28 04:54:11,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16710 conditions, 3316 events. 1683/3316 cut-off events. For 22862/22862 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 22047 event pairs, 312 based on Foata normal form. 1/3317 useless extension candidates. Maximal degree in co-relation 16649. Up to 2060 conditions per place. [2024-11-28 04:54:11,257 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 346 selfloop transitions, 194 changer transitions 0/550 dead transitions. [2024-11-28 04:54:11,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 550 transitions, 7328 flow [2024-11-28 04:54:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:54:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 04:54:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 708 transitions. [2024-11-28 04:54:11,260 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3582995951417004 [2024-11-28 04:54:11,260 INFO L175 Difference]: Start difference. First operand has 211 places, 424 transitions, 5016 flow. Second operand 19 states and 708 transitions. [2024-11-28 04:54:11,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 550 transitions, 7328 flow [2024-11-28 04:54:11,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 550 transitions, 7085 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-11-28 04:54:11,473 INFO L231 Difference]: Finished difference. Result has 223 places, 497 transitions, 6458 flow [2024-11-28 04:54:11,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=4817, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6458, PETRI_PLACES=223, PETRI_TRANSITIONS=497} [2024-11-28 04:54:11,474 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 125 predicate places. [2024-11-28 04:54:11,474 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 497 transitions, 6458 flow [2024-11-28 04:54:11,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:11,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:54:11,474 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:11,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:11,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:11,675 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:54:11,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash -179111024, now seen corresponding path program 7 times [2024-11-28 04:54:11,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137879313] [2024-11-28 04:54:11,676 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:54:11,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:11,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:11,681 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:11,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:54:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:11,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:54:11,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:12,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:54:12,080 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:12,081 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:12,081 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:12,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:54:12,397 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:12,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:54:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:12,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:12,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:12,872 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:12,873 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:12,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:54:13,201 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:54:13,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:54:13,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:13,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:13,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:13,945 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:13,946 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:13,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:13,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:54:14,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:14,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:54:14,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:14,276 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:54:14,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:14,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137879313] [2024-11-28 04:54:14,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137879313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:14,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:14,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:54:14,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839107386] [2024-11-28 04:54:14,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:14,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:54:14,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:14,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:54:14,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:54:16,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:54:16,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 497 transitions, 6458 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:16,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:54:16,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:54:16,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:54:27,157 INFO L124 PetriNetUnfolderBase]: 1806/3675 cut-off events. [2024-11-28 04:54:27,157 INFO L125 PetriNetUnfolderBase]: For 27154/27154 co-relation queries the response was YES. [2024-11-28 04:54:27,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19691 conditions, 3675 events. 1806/3675 cut-off events. For 27154/27154 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 25564 event pairs, 449 based on Foata normal form. 1/3676 useless extension candidates. Maximal degree in co-relation 19618. Up to 2402 conditions per place. [2024-11-28 04:54:27,186 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 377 selfloop transitions, 199 changer transitions 0/586 dead transitions. [2024-11-28 04:54:27,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 586 transitions, 8440 flow [2024-11-28 04:54:27,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:54:27,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:54:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 771 transitions. [2024-11-28 04:54:27,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35302197802197804 [2024-11-28 04:54:27,189 INFO L175 Difference]: Start difference. First operand has 223 places, 497 transitions, 6458 flow. Second operand 21 states and 771 transitions. [2024-11-28 04:54:27,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 586 transitions, 8440 flow [2024-11-28 04:54:27,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 586 transitions, 8336 flow, removed 39 selfloop flow, removed 3 redundant places. [2024-11-28 04:54:27,491 INFO L231 Difference]: Finished difference. Result has 244 places, 538 transitions, 7493 flow [2024-11-28 04:54:27,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=6364, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=7493, PETRI_PLACES=244, PETRI_TRANSITIONS=538} [2024-11-28 04:54:27,492 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 146 predicate places. [2024-11-28 04:54:27,492 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 538 transitions, 7493 flow [2024-11-28 04:54:27,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:27,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:54:27,493 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:27,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:54:27,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:27,693 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:54:27,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:27,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1489884194, now seen corresponding path program 8 times [2024-11-28 04:54:27,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:27,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352804147] [2024-11-28 04:54:27,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:27,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:27,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:27,696 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:27,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:54:27,999 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:54:27,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:28,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:54:28,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:28,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:54:28,082 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:28,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:28,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:28,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:54:28,431 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:28,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:54:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:28,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:28,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:28,987 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:28,987 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:28,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:54:29,050 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:54:29,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:54:29,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:29,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:29,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:29,802 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:29,803 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:29,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:29,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:54:30,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:30,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:54:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:30,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:54:30,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:30,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352804147] [2024-11-28 04:54:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352804147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:30,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:30,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:54:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028536757] [2024-11-28 04:54:30,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:30,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:54:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:30,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:54:30,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:54:32,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:54:32,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 538 transitions, 7493 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:32,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:54:32,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:54:32,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:54:40,587 INFO L124 PetriNetUnfolderBase]: 1814/3711 cut-off events. [2024-11-28 04:54:40,588 INFO L125 PetriNetUnfolderBase]: For 29744/29744 co-relation queries the response was YES. [2024-11-28 04:54:40,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20334 conditions, 3711 events. 1814/3711 cut-off events. For 29744/29744 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 25962 event pairs, 444 based on Foata normal form. 1/3712 useless extension candidates. Maximal degree in co-relation 20256. Up to 2391 conditions per place. [2024-11-28 04:54:40,610 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 376 selfloop transitions, 211 changer transitions 0/597 dead transitions. [2024-11-28 04:54:40,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 597 transitions, 9076 flow [2024-11-28 04:54:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:54:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 04:54:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 804 transitions. [2024-11-28 04:54:40,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3513986013986014 [2024-11-28 04:54:40,612 INFO L175 Difference]: Start difference. First operand has 244 places, 538 transitions, 7493 flow. Second operand 22 states and 804 transitions. [2024-11-28 04:54:40,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 597 transitions, 9076 flow [2024-11-28 04:54:40,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 597 transitions, 8766 flow, removed 26 selfloop flow, removed 12 redundant places. [2024-11-28 04:54:40,863 INFO L231 Difference]: Finished difference. Result has 258 places, 548 transitions, 7896 flow [2024-11-28 04:54:40,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=7183, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=7896, PETRI_PLACES=258, PETRI_TRANSITIONS=548} [2024-11-28 04:54:40,864 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 160 predicate places. [2024-11-28 04:54:40,864 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 548 transitions, 7896 flow [2024-11-28 04:54:40,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:40,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:54:40,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:40,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:54:41,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:41,065 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:54:41,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1890001614, now seen corresponding path program 9 times [2024-11-28 04:54:41,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:41,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614503547] [2024-11-28 04:54:41,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:41,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:41,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:41,067 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:41,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:54:41,329 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:54:41,329 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:41,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:54:41,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:41,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:54:41,407 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:41,408 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:41,408 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:41,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:54:41,720 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:41,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:54:42,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:42,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:42,301 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:42,301 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:42,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:54:42,365 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:54:42,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 112 [2024-11-28 04:54:42,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:42,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:54:43,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:43,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:54:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:43,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:54:43,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:43,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614503547] [2024-11-28 04:54:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614503547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:43,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:54:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387131434] [2024-11-28 04:54:43,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:43,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:54:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:43,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:54:43,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:54:45,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:54:45,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 548 transitions, 7896 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:45,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:54:45,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:54:45,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:54:56,525 INFO L124 PetriNetUnfolderBase]: 1853/3867 cut-off events. [2024-11-28 04:54:56,525 INFO L125 PetriNetUnfolderBase]: For 35934/35934 co-relation queries the response was YES. [2024-11-28 04:54:56,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21765 conditions, 3867 events. 1853/3867 cut-off events. For 35934/35934 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 27703 event pairs, 458 based on Foata normal form. 1/3868 useless extension candidates. Maximal degree in co-relation 21683. Up to 2364 conditions per place. [2024-11-28 04:54:56,552 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 404 selfloop transitions, 211 changer transitions 0/625 dead transitions. [2024-11-28 04:54:56,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 625 transitions, 9897 flow [2024-11-28 04:54:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:54:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:54:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 675 transitions. [2024-11-28 04:54:56,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3605769230769231 [2024-11-28 04:54:56,554 INFO L175 Difference]: Start difference. First operand has 258 places, 548 transitions, 7896 flow. Second operand 18 states and 675 transitions. [2024-11-28 04:54:56,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 625 transitions, 9897 flow [2024-11-28 04:54:56,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 625 transitions, 9583 flow, removed 46 selfloop flow, removed 15 redundant places. [2024-11-28 04:54:56,858 INFO L231 Difference]: Finished difference. Result has 263 places, 571 transitions, 8645 flow [2024-11-28 04:54:56,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=7625, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8645, PETRI_PLACES=263, PETRI_TRANSITIONS=571} [2024-11-28 04:54:56,859 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 165 predicate places. [2024-11-28 04:54:56,859 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 571 transitions, 8645 flow [2024-11-28 04:54:56,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:56,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:54:56,859 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:56,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:57,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:57,060 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:54:57,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:57,061 INFO L85 PathProgramCache]: Analyzing trace with hash -842081616, now seen corresponding path program 10 times [2024-11-28 04:54:57,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:54:57,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541159148] [2024-11-28 04:54:57,061 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:54:57,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:57,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:57,063 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:57,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:54:57,349 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:54:57,349 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:57,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:54:57,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:57,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:54:57,465 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:57,465 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:57,466 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:57,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:54:57,815 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:57,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:54:58,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:58,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:54:58,394 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:58,394 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:54:58,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:54:58,439 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:54:58,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 115 [2024-11-28 04:54:58,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:58,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:54:59,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:59,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:54:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:59,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:54:59,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:54:59,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541159148] [2024-11-28 04:54:59,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541159148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:59,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:59,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:54:59,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101361077] [2024-11-28 04:54:59,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:59,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:54:59,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:59,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:54:59,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:55:01,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:55:01,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 571 transitions, 8645 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:01,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:55:01,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:55:01,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:55:13,025 INFO L124 PetriNetUnfolderBase]: 1981/4227 cut-off events. [2024-11-28 04:55:13,025 INFO L125 PetriNetUnfolderBase]: For 42502/42502 co-relation queries the response was YES. [2024-11-28 04:55:13,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24267 conditions, 4227 events. 1981/4227 cut-off events. For 42502/42502 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 31334 event pairs, 492 based on Foata normal form. 1/4228 useless extension candidates. Maximal degree in co-relation 24181. Up to 2612 conditions per place. [2024-11-28 04:55:13,053 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 445 selfloop transitions, 229 changer transitions 0/684 dead transitions. [2024-11-28 04:55:13,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 684 transitions, 11421 flow [2024-11-28 04:55:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:55:13,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 04:55:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 712 transitions. [2024-11-28 04:55:13,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3603238866396761 [2024-11-28 04:55:13,054 INFO L175 Difference]: Start difference. First operand has 263 places, 571 transitions, 8645 flow. Second operand 19 states and 712 transitions. [2024-11-28 04:55:13,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 684 transitions, 11421 flow [2024-11-28 04:55:13,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 684 transitions, 11169 flow, removed 37 selfloop flow, removed 11 redundant places. [2024-11-28 04:55:13,420 INFO L231 Difference]: Finished difference. Result has 282 places, 631 transitions, 10311 flow [2024-11-28 04:55:13,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=8404, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10311, PETRI_PLACES=282, PETRI_TRANSITIONS=631} [2024-11-28 04:55:13,421 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 184 predicate places. [2024-11-28 04:55:13,421 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 631 transitions, 10311 flow [2024-11-28 04:55:13,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:13,421 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:55:13,421 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:13,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:55:13,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:13,622 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:55:13,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2087758882, now seen corresponding path program 11 times [2024-11-28 04:55:13,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:13,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939606607] [2024-11-28 04:55:13,623 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:55:13,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:13,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:13,624 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:13,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:55:13,901 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:55:13,901 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:55:13,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:55:13,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:13,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:55:14,036 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:14,037 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:14,041 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:14,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:55:14,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:14,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:55:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:14,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:14,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:14,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:14,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:14,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:55:14,947 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:55:15,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 04:55:15,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:15,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 04:55:15,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:15,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 04:55:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:55:15,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:55:15,862 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939606607] [2024-11-28 04:55:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939606607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:15,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:15,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:55:15,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235697267] [2024-11-28 04:55:15,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:15,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:55:15,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:15,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:55:15,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:55:17,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:55:17,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 631 transitions, 10311 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:17,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:55:17,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:55:17,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:55:27,488 INFO L124 PetriNetUnfolderBase]: 2001/4289 cut-off events. [2024-11-28 04:55:27,488 INFO L125 PetriNetUnfolderBase]: For 48314/48314 co-relation queries the response was YES. [2024-11-28 04:55:27,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25726 conditions, 4289 events. 2001/4289 cut-off events. For 48314/48314 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 32114 event pairs, 374 based on Foata normal form. 1/4290 useless extension candidates. Maximal degree in co-relation 25627. Up to 2648 conditions per place. [2024-11-28 04:55:27,525 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 410 selfloop transitions, 278 changer transitions 0/698 dead transitions. [2024-11-28 04:55:27,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 698 transitions, 12353 flow [2024-11-28 04:55:27,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:55:27,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 04:55:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 742 transitions. [2024-11-28 04:55:27,527 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35673076923076924 [2024-11-28 04:55:27,527 INFO L175 Difference]: Start difference. First operand has 282 places, 631 transitions, 10311 flow. Second operand 20 states and 742 transitions. [2024-11-28 04:55:27,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 698 transitions, 12353 flow [2024-11-28 04:55:27,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 698 transitions, 12102 flow, removed 84 selfloop flow, removed 5 redundant places. [2024-11-28 04:55:27,994 INFO L231 Difference]: Finished difference. Result has 299 places, 647 transitions, 11163 flow [2024-11-28 04:55:27,994 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=10082, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11163, PETRI_PLACES=299, PETRI_TRANSITIONS=647} [2024-11-28 04:55:27,995 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 201 predicate places. [2024-11-28 04:55:27,995 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 647 transitions, 11163 flow [2024-11-28 04:55:27,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:27,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:55:27,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:28,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:55:28,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:28,196 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:55:28,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:28,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1313704610, now seen corresponding path program 12 times [2024-11-28 04:55:28,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:28,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903228259] [2024-11-28 04:55:28,197 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:55:28,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:28,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:28,198 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:28,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:55:28,504 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:55:28,504 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:55:28,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 04:55:28,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:28,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:55:28,591 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:28,592 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:28,592 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:28,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:55:28,908 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:55:28,918 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:28,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:55:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:29,488 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:29,488 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:29,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:55:29,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 04:55:30,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:30,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 04:55:30,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:30,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 04:55:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:55:30,440 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:55:30,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:30,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903228259] [2024-11-28 04:55:30,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903228259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:30,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:30,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:55:30,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94995388] [2024-11-28 04:55:30,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:30,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:55:30,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:30,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:55:30,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:55:33,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:55:33,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 647 transitions, 11163 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:33,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:55:33,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:55:33,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:55:42,918 INFO L124 PetriNetUnfolderBase]: 2026/4362 cut-off events. [2024-11-28 04:55:42,918 INFO L125 PetriNetUnfolderBase]: For 54703/54703 co-relation queries the response was YES. [2024-11-28 04:55:42,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27349 conditions, 4362 events. 2026/4362 cut-off events. For 54703/54703 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 32951 event pairs, 351 based on Foata normal form. 1/4363 useless extension candidates. Maximal degree in co-relation 27247. Up to 2657 conditions per place. [2024-11-28 04:55:42,955 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 427 selfloop transitions, 276 changer transitions 0/713 dead transitions. [2024-11-28 04:55:42,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 713 transitions, 13173 flow [2024-11-28 04:55:42,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:55:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:55:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 675 transitions. [2024-11-28 04:55:42,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3605769230769231 [2024-11-28 04:55:42,957 INFO L175 Difference]: Start difference. First operand has 299 places, 647 transitions, 11163 flow. Second operand 18 states and 675 transitions. [2024-11-28 04:55:42,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 713 transitions, 13173 flow [2024-11-28 04:55:43,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 713 transitions, 12795 flow, removed 56 selfloop flow, removed 13 redundant places. [2024-11-28 04:55:43,499 INFO L231 Difference]: Finished difference. Result has 307 places, 661 transitions, 11843 flow [2024-11-28 04:55:43,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=10795, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11843, PETRI_PLACES=307, PETRI_TRANSITIONS=661} [2024-11-28 04:55:43,500 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 209 predicate places. [2024-11-28 04:55:43,500 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 661 transitions, 11843 flow [2024-11-28 04:55:43,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:43,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:55:43,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:43,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:55:43,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:43,701 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:55:43,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:43,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1882563934, now seen corresponding path program 13 times [2024-11-28 04:55:43,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:43,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972203996] [2024-11-28 04:55:43,702 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:55:43,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:43,704 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:43,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:55:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:43,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 04:55:44,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:44,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:55:44,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:44,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:44,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:44,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:55:44,396 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:55:44,403 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:44,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:55:44,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:44,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:44,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:44,891 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:44,892 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:44,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:55:45,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:55:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:45,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:45,522 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:45,523 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:45,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:45,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:55:45,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:45,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:55:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:55:45,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:55:45,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:45,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972203996] [2024-11-28 04:55:45,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972203996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:45,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:45,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:55:45,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184249432] [2024-11-28 04:55:45,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:45,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:55:45,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:45,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:55:45,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:55:48,320 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:55:48,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 661 transitions, 11843 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:48,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:55:48,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:55:48,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:55:56,568 INFO L124 PetriNetUnfolderBase]: 2047/4459 cut-off events. [2024-11-28 04:55:56,568 INFO L125 PetriNetUnfolderBase]: For 60093/60093 co-relation queries the response was YES. [2024-11-28 04:55:56,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28645 conditions, 4459 events. 2047/4459 cut-off events. For 60093/60093 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 34130 event pairs, 523 based on Foata normal form. 1/4460 useless extension candidates. Maximal degree in co-relation 28538. Up to 2790 conditions per place. [2024-11-28 04:55:56,597 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 430 selfloop transitions, 281 changer transitions 0/721 dead transitions. [2024-11-28 04:55:56,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 721 transitions, 13807 flow [2024-11-28 04:55:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:55:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 04:55:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 738 transitions. [2024-11-28 04:55:56,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3548076923076923 [2024-11-28 04:55:56,599 INFO L175 Difference]: Start difference. First operand has 307 places, 661 transitions, 11843 flow. Second operand 20 states and 738 transitions. [2024-11-28 04:55:56,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 721 transitions, 13807 flow [2024-11-28 04:55:57,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 721 transitions, 13496 flow, removed 49 selfloop flow, removed 10 redundant places. [2024-11-28 04:55:57,091 INFO L231 Difference]: Finished difference. Result has 319 places, 674 transitions, 12579 flow [2024-11-28 04:55:57,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=11550, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=268, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12579, PETRI_PLACES=319, PETRI_TRANSITIONS=674} [2024-11-28 04:55:57,092 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 221 predicate places. [2024-11-28 04:55:57,092 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 674 transitions, 12579 flow [2024-11-28 04:55:57,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:55:57,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:55:57,093 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:57,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-28 04:55:57,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:57,293 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:55:57,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash 967482446, now seen corresponding path program 14 times [2024-11-28 04:55:57,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:57,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124510424] [2024-11-28 04:55:57,294 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:55:57,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:57,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:57,296 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:57,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:55:57,589 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:55:57,589 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:55:57,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 04:55:57,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:57,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:55:57,664 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:57,665 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:57,665 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:57,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:55:57,966 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:55:57,973 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:57,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:55:58,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:58,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:58,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:55:58,562 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:58,562 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:55:58,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:55:58,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 118 [2024-11-28 04:55:59,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:59,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:56:00,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:00,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:56:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:00,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:00,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:56:00,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124510424] [2024-11-28 04:56:00,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124510424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:00,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:00,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:56:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172040002] [2024-11-28 04:56:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:00,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:00,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:00,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:00,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:03,310 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:56:03,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 674 transitions, 12579 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:03,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:03,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:56:03,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:13,775 INFO L124 PetriNetUnfolderBase]: 2085/4595 cut-off events. [2024-11-28 04:56:13,775 INFO L125 PetriNetUnfolderBase]: For 62747/62747 co-relation queries the response was YES. [2024-11-28 04:56:13,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29501 conditions, 4595 events. 2085/4595 cut-off events. For 62747/62747 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 35667 event pairs, 561 based on Foata normal form. 1/4596 useless extension candidates. Maximal degree in co-relation 29390. Up to 2839 conditions per place. [2024-11-28 04:56:13,807 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 489 selfloop transitions, 251 changer transitions 0/750 dead transitions. [2024-11-28 04:56:13,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 750 transitions, 14909 flow [2024-11-28 04:56:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:56:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 04:56:13,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 641 transitions. [2024-11-28 04:56:13,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36255656108597284 [2024-11-28 04:56:13,809 INFO L175 Difference]: Start difference. First operand has 319 places, 674 transitions, 12579 flow. Second operand 17 states and 641 transitions. [2024-11-28 04:56:13,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 750 transitions, 14909 flow [2024-11-28 04:56:14,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 750 transitions, 14414 flow, removed 49 selfloop flow, removed 14 redundant places. [2024-11-28 04:56:14,342 INFO L231 Difference]: Finished difference. Result has 326 places, 695 transitions, 13338 flow [2024-11-28 04:56:14,343 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=12136, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13338, PETRI_PLACES=326, PETRI_TRANSITIONS=695} [2024-11-28 04:56:14,343 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 228 predicate places. [2024-11-28 04:56:14,343 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 695 transitions, 13338 flow [2024-11-28 04:56:14,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:14,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:14,344 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:14,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:14,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:14,544 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:56:14,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1776792904, now seen corresponding path program 15 times [2024-11-28 04:56:14,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:56:14,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535720446] [2024-11-28 04:56:14,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:14,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:14,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:14,547 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:14,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:56:14,853 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:56:14,854 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:14,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:56:14,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:14,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:56:14,940 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:14,940 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:14,941 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:14,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:56:15,241 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:15,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:56:15,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:15,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:15,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:15,752 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:15,753 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:15,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:56:15,811 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:56:16,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 109 [2024-11-28 04:56:16,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:16,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:56:17,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:17,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:56:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:17,079 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:17,079 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:56:17,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535720446] [2024-11-28 04:56:17,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535720446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:17,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:17,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:56:17,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691506149] [2024-11-28 04:56:17,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:17,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:17,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:17,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:17,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:19,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:56:19,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 695 transitions, 13338 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:19,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:19,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:56:19,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:30,184 INFO L124 PetriNetUnfolderBase]: 2203/4955 cut-off events. [2024-11-28 04:56:30,185 INFO L125 PetriNetUnfolderBase]: For 70593/70593 co-relation queries the response was YES. [2024-11-28 04:56:30,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31856 conditions, 4955 events. 2203/4955 cut-off events. For 70593/70593 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 39723 event pairs, 576 based on Foata normal form. 1/4956 useless extension candidates. Maximal degree in co-relation 31740. Up to 3041 conditions per place. [2024-11-28 04:56:30,231 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 486 selfloop transitions, 303 changer transitions 0/799 dead transitions. [2024-11-28 04:56:30,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 799 transitions, 16363 flow [2024-11-28 04:56:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:56:30,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 04:56:30,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 719 transitions. [2024-11-28 04:56:30,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3638663967611336 [2024-11-28 04:56:30,233 INFO L175 Difference]: Start difference. First operand has 326 places, 695 transitions, 13338 flow. Second operand 19 states and 719 transitions. [2024-11-28 04:56:30,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 799 transitions, 16363 flow [2024-11-28 04:56:31,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 799 transitions, 16087 flow, removed 19 selfloop flow, removed 8 redundant places. [2024-11-28 04:56:31,170 INFO L231 Difference]: Finished difference. Result has 344 places, 747 transitions, 15241 flow [2024-11-28 04:56:31,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=13073, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15241, PETRI_PLACES=344, PETRI_TRANSITIONS=747} [2024-11-28 04:56:31,171 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 246 predicate places. [2024-11-28 04:56:31,171 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 747 transitions, 15241 flow [2024-11-28 04:56:31,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:31,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:31,172 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:31,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:56:31,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:31,372 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:56:31,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1826990216, now seen corresponding path program 16 times [2024-11-28 04:56:31,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:56:31,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722352782] [2024-11-28 04:56:31,374 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:31,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:31,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:31,376 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:31,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:56:31,774 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:31,774 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:31,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:56:31,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:31,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:56:31,887 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:31,888 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:31,889 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:31,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:56:32,253 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:32,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:56:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:32,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:32,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:32,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:32,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:32,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:56:32,830 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:56:33,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 109 [2024-11-28 04:56:33,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:33,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:56:34,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:34,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:56:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:34,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:34,772 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:56:34,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722352782] [2024-11-28 04:56:34,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722352782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:34,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:34,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:56:34,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818343724] [2024-11-28 04:56:34,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:34,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:34,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:34,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:34,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:37,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:56:37,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 747 transitions, 15241 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:37,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:37,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:56:37,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:56:48,135 INFO L124 PetriNetUnfolderBase]: 2218/5038 cut-off events. [2024-11-28 04:56:48,135 INFO L125 PetriNetUnfolderBase]: For 77943/77943 co-relation queries the response was YES. [2024-11-28 04:56:48,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33070 conditions, 5038 events. 2218/5038 cut-off events. For 77943/77943 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 40813 event pairs, 510 based on Foata normal form. 1/5039 useless extension candidates. Maximal degree in co-relation 32946. Up to 2864 conditions per place. [2024-11-28 04:56:48,179 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 453 selfloop transitions, 351 changer transitions 0/814 dead transitions. [2024-11-28 04:56:48,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 814 transitions, 17518 flow [2024-11-28 04:56:48,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:56:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 04:56:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 754 transitions. [2024-11-28 04:56:48,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3625 [2024-11-28 04:56:48,181 INFO L175 Difference]: Start difference. First operand has 344 places, 747 transitions, 15241 flow. Second operand 20 states and 754 transitions. [2024-11-28 04:56:48,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 814 transitions, 17518 flow [2024-11-28 04:56:49,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 814 transitions, 17248 flow, removed 41 selfloop flow, removed 6 redundant places. [2024-11-28 04:56:49,048 INFO L231 Difference]: Finished difference. Result has 361 places, 762 transitions, 16353 flow [2024-11-28 04:56:49,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=14974, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=747, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=336, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=16353, PETRI_PLACES=361, PETRI_TRANSITIONS=762} [2024-11-28 04:56:49,049 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 263 predicate places. [2024-11-28 04:56:49,049 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 762 transitions, 16353 flow [2024-11-28 04:56:49,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:49,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:56:49,049 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:49,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:56:49,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:49,250 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:56:49,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:49,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1764600784, now seen corresponding path program 17 times [2024-11-28 04:56:49,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:56:49,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040299494] [2024-11-28 04:56:49,251 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:56:49,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:49,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:49,253 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:49,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:56:49,559 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:56:49,559 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:49,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 04:56:49,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:49,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:56:49,638 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:49,638 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:49,638 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:49,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:56:49,923 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:56:49,932 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:49,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:56:50,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:50,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:50,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:56:50,492 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:50,492 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:56:50,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:56:50,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 115 [2024-11-28 04:56:50,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:50,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:56:51,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:51,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:56:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:56:51,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:51,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:56:51,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040299494] [2024-11-28 04:56:51,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040299494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:51,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:51,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:56:51,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336724186] [2024-11-28 04:56:51,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:51,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:51,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:51,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:51,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:54,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:56:54,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 762 transitions, 16353 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:56:54,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:56:54,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:56:54,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:57:03,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:57:06,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:57:10,556 INFO L124 PetriNetUnfolderBase]: 2249/5158 cut-off events. [2024-11-28 04:57:10,556 INFO L125 PetriNetUnfolderBase]: For 89350/89350 co-relation queries the response was YES. [2024-11-28 04:57:10,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34699 conditions, 5158 events. 2249/5158 cut-off events. For 89350/89350 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 42302 event pairs, 595 based on Foata normal form. 1/5159 useless extension candidates. Maximal degree in co-relation 34571. Up to 3242 conditions per place. [2024-11-28 04:57:10,617 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 561 selfloop transitions, 268 changer transitions 0/839 dead transitions. [2024-11-28 04:57:10,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 839 transitions, 18934 flow [2024-11-28 04:57:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:57:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:57:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 678 transitions. [2024-11-28 04:57:10,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36217948717948717 [2024-11-28 04:57:10,619 INFO L175 Difference]: Start difference. First operand has 361 places, 762 transitions, 16353 flow. Second operand 18 states and 678 transitions. [2024-11-28 04:57:10,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 839 transitions, 18934 flow [2024-11-28 04:57:11,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 839 transitions, 18439 flow, removed 47 selfloop flow, removed 15 redundant places. [2024-11-28 04:57:11,684 INFO L231 Difference]: Finished difference. Result has 369 places, 787 transitions, 17291 flow [2024-11-28 04:57:11,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=15872, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=17291, PETRI_PLACES=369, PETRI_TRANSITIONS=787} [2024-11-28 04:57:11,687 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 271 predicate places. [2024-11-28 04:57:11,688 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 787 transitions, 17291 flow [2024-11-28 04:57:11,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:57:11,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:57:11,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:11,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:57:11,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:11,889 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:57:11,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:11,890 INFO L85 PathProgramCache]: Analyzing trace with hash 52868872, now seen corresponding path program 18 times [2024-11-28 04:57:11,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:11,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778416858] [2024-11-28 04:57:11,890 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:57:11,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:11,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:11,892 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:11,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:57:12,247 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:57:12,247 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:12,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 04:57:12,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:12,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:57:12,342 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:12,343 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:12,343 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:12,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:57:12,734 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:12,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:57:12,770 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:57:13,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:13,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:13,290 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:13,290 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:13,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:57:13,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 109 [2024-11-28 04:57:13,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:13,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:57:14,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:14,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:57:14,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:57:14,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:57:14,992 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:57:14,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778416858] [2024-11-28 04:57:14,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778416858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:14,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:14,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:57:14,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891957077] [2024-11-28 04:57:14,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:14,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:57:14,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:57:14,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:57:14,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:57:18,369 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:57:18,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 787 transitions, 17291 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:57:18,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:57:18,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:57:18,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:57:28,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:57:31,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:57:36,138 INFO L124 PetriNetUnfolderBase]: 2264/5225 cut-off events. [2024-11-28 04:57:36,139 INFO L125 PetriNetUnfolderBase]: For 95827/95827 co-relation queries the response was YES. [2024-11-28 04:57:36,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35510 conditions, 5225 events. 2264/5225 cut-off events. For 95827/95827 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 43112 event pairs, 481 based on Foata normal form. 1/5226 useless extension candidates. Maximal degree in co-relation 35376. Up to 2852 conditions per place. [2024-11-28 04:57:36,211 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 466 selfloop transitions, 374 changer transitions 0/850 dead transitions. [2024-11-28 04:57:36,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 850 transitions, 19564 flow [2024-11-28 04:57:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:57:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:57:36,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 685 transitions. [2024-11-28 04:57:36,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3659188034188034 [2024-11-28 04:57:36,213 INFO L175 Difference]: Start difference. First operand has 369 places, 787 transitions, 17291 flow. Second operand 18 states and 685 transitions. [2024-11-28 04:57:36,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 850 transitions, 19564 flow [2024-11-28 04:57:37,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 850 transitions, 19207 flow, removed 53 selfloop flow, removed 8 redundant places. [2024-11-28 04:57:37,427 INFO L231 Difference]: Finished difference. Result has 382 places, 798 transitions, 18355 flow [2024-11-28 04:57:37,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=16949, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=787, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=363, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=18355, PETRI_PLACES=382, PETRI_TRANSITIONS=798} [2024-11-28 04:57:37,428 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 284 predicate places. [2024-11-28 04:57:37,428 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 798 transitions, 18355 flow [2024-11-28 04:57:37,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:57:37,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:57:37,428 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:37,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:57:37,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:37,629 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:57:37,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:37,630 INFO L85 PathProgramCache]: Analyzing trace with hash -28811504, now seen corresponding path program 19 times [2024-11-28 04:57:37,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:37,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494681485] [2024-11-28 04:57:37,630 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:57:37,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:37,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:37,634 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:37,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:57:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:38,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:57:38,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:38,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:57:38,103 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:38,103 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:38,104 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:38,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:57:38,619 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:38,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:57:38,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:38,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:38,922 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:38,923 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:38,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:57:39,150 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:57:39,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 04:57:39,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:39,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 04:57:39,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:39,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 04:57:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:57:39,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:57:39,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:57:39,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494681485] [2024-11-28 04:57:39,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494681485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:39,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:39,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:57:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183907479] [2024-11-28 04:57:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:39,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:57:39,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:57:39,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:57:39,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:57:43,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:57:43,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 798 transitions, 18355 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:57:43,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:57:43,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:57:43,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:57:55,064 INFO L124 PetriNetUnfolderBase]: 2312/5337 cut-off events. [2024-11-28 04:57:55,064 INFO L125 PetriNetUnfolderBase]: For 106667/106667 co-relation queries the response was YES. [2024-11-28 04:57:55,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37119 conditions, 5337 events. 2312/5337 cut-off events. For 106667/106667 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 44336 event pairs, 508 based on Foata normal form. 1/5338 useless extension candidates. Maximal degree in co-relation 36981. Up to 3316 conditions per place. [2024-11-28 04:57:55,127 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 517 selfloop transitions, 358 changer transitions 0/885 dead transitions. [2024-11-28 04:57:55,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 885 transitions, 21070 flow [2024-11-28 04:57:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:57:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:57:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 779 transitions. [2024-11-28 04:57:55,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3566849816849817 [2024-11-28 04:57:55,130 INFO L175 Difference]: Start difference. First operand has 382 places, 798 transitions, 18355 flow. Second operand 21 states and 779 transitions. [2024-11-28 04:57:55,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 885 transitions, 21070 flow [2024-11-28 04:57:56,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 885 transitions, 20618 flow, removed 48 selfloop flow, removed 11 redundant places. [2024-11-28 04:57:56,293 INFO L231 Difference]: Finished difference. Result has 397 places, 829 transitions, 19594 flow [2024-11-28 04:57:56,294 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=17931, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=798, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=19594, PETRI_PLACES=397, PETRI_TRANSITIONS=829} [2024-11-28 04:57:56,294 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 299 predicate places. [2024-11-28 04:57:56,294 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 829 transitions, 19594 flow [2024-11-28 04:57:56,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:57:56,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:57:56,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:56,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:57:56,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:56,495 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:57:56,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1461039888, now seen corresponding path program 20 times [2024-11-28 04:57:56,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:56,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563388621] [2024-11-28 04:57:56,496 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:56,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:56,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:56,499 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:56,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:57:56,857 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:57:56,857 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:56,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:57:56,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:56,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:57:56,973 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:56,974 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:56,975 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:56,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:57:57,528 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:57,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:57:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:57,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:57,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:57,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:57,853 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:57,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:57:58,106 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:57:58,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:57:58,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:58,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:58,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:57:58,873 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:58,874 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:57:58,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:58,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:57:59,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:59,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:57:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:57:59,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:57:59,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:57:59,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563388621] [2024-11-28 04:57:59,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563388621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:59,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:57:59,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:57:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510774820] [2024-11-28 04:57:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:59,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:57:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:57:59,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:57:59,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:58:02,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:58:02,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 829 transitions, 19594 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:58:02,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:02,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:58:02,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:16,180 INFO L124 PetriNetUnfolderBase]: 2418/5647 cut-off events. [2024-11-28 04:58:16,180 INFO L125 PetriNetUnfolderBase]: For 117529/117529 co-relation queries the response was YES. [2024-11-28 04:58:16,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40065 conditions, 5647 events. 2418/5647 cut-off events. For 117529/117529 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 47772 event pairs, 793 based on Foata normal form. 1/5648 useless extension candidates. Maximal degree in co-relation 39921. Up to 4059 conditions per place. [2024-11-28 04:58:16,245 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 660 selfloop transitions, 237 changer transitions 0/907 dead transitions. [2024-11-28 04:58:16,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 907 transitions, 22250 flow [2024-11-28 04:58:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:58:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 04:58:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 810 transitions. [2024-11-28 04:58:16,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.354020979020979 [2024-11-28 04:58:16,247 INFO L175 Difference]: Start difference. First operand has 397 places, 829 transitions, 19594 flow. Second operand 22 states and 810 transitions. [2024-11-28 04:58:16,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 907 transitions, 22250 flow [2024-11-28 04:58:17,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 907 transitions, 21958 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-11-28 04:58:17,549 INFO L231 Difference]: Finished difference. Result has 414 places, 858 transitions, 20456 flow [2024-11-28 04:58:17,550 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=19313, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=20456, PETRI_PLACES=414, PETRI_TRANSITIONS=858} [2024-11-28 04:58:17,550 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 316 predicate places. [2024-11-28 04:58:17,551 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 858 transitions, 20456 flow [2024-11-28 04:58:17,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:58:17,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:17,551 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:17,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:58:17,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:17,752 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:58:17,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 150266718, now seen corresponding path program 21 times [2024-11-28 04:58:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:58:17,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642417534] [2024-11-28 04:58:17,753 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:17,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:17,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:17,755 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:17,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:58:18,102 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:58:18,102 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:18,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:58:18,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:18,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:58:18,215 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:18,216 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:18,217 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:18,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:58:18,729 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:18,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:58:19,051 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:58:19,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:19,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:19,065 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:19,066 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:19,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:58:19,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:58:19,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:19,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:19,819 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:19,820 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:19,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:58:19,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:58:20,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:58:20,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:58:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:58:20,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:58:20,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:58:20,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642417534] [2024-11-28 04:58:20,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642417534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:20,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:20,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:58:20,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382452869] [2024-11-28 04:58:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:20,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:58:20,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:58:20,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:58:20,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:58:23,814 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:58:23,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 858 transitions, 20456 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:58:23,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:23,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:58:23,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:36,359 INFO L124 PetriNetUnfolderBase]: 2426/5683 cut-off events. [2024-11-28 04:58:36,359 INFO L125 PetriNetUnfolderBase]: For 123003/123003 co-relation queries the response was YES. [2024-11-28 04:58:36,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40372 conditions, 5683 events. 2426/5683 cut-off events. For 123003/123003 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 48281 event pairs, 788 based on Foata normal form. 1/5684 useless extension candidates. Maximal degree in co-relation 40224. Up to 4042 conditions per place. [2024-11-28 04:58:36,443 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 658 selfloop transitions, 249 changer transitions 0/917 dead transitions. [2024-11-28 04:58:36,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 917 transitions, 22823 flow [2024-11-28 04:58:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:58:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-28 04:58:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 843 transitions. [2024-11-28 04:58:36,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3524247491638796 [2024-11-28 04:58:36,445 INFO L175 Difference]: Start difference. First operand has 414 places, 858 transitions, 20456 flow. Second operand 23 states and 843 transitions. [2024-11-28 04:58:36,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 917 transitions, 22823 flow [2024-11-28 04:58:37,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 917 transitions, 21947 flow, removed 155 selfloop flow, removed 21 redundant places. [2024-11-28 04:58:37,826 INFO L231 Difference]: Finished difference. Result has 420 places, 867 transitions, 20431 flow [2024-11-28 04:58:37,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=19584, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=858, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=20431, PETRI_PLACES=420, PETRI_TRANSITIONS=867} [2024-11-28 04:58:37,827 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 322 predicate places. [2024-11-28 04:58:37,827 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 867 transitions, 20431 flow [2024-11-28 04:58:37,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:58:37,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:37,827 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:37,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:58:38,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:38,028 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:58:38,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:38,028 INFO L85 PathProgramCache]: Analyzing trace with hash -764814770, now seen corresponding path program 22 times [2024-11-28 04:58:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:58:38,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821761877] [2024-11-28 04:58:38,029 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:58:38,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:38,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:38,031 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:38,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:58:38,417 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:58:38,417 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:38,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:58:38,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:38,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:58:38,516 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:38,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:38,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:38,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:58:38,985 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:38,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:58:39,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:39,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:39,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:58:39,428 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:39,428 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:58:39,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2024-11-28 04:58:39,491 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:58:39,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 115 [2024-11-28 04:58:39,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:58:39,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 04:58:40,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:58:40,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 04:58:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:58:40,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:58:40,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:58:40,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821761877] [2024-11-28 04:58:40,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821761877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:40,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:40,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:58:40,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824764209] [2024-11-28 04:58:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:40,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:58:40,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:58:40,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:58:40,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:58:43,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:58:43,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 867 transitions, 20431 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:58:43,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:43,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:58:43,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:00,445 INFO L124 PetriNetUnfolderBase]: 2583/6102 cut-off events. [2024-11-28 04:59:00,445 INFO L125 PetriNetUnfolderBase]: For 135406/135406 co-relation queries the response was YES. [2024-11-28 04:59:00,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43103 conditions, 6102 events. 2583/6102 cut-off events. For 135406/135406 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 52904 event pairs, 747 based on Foata normal form. 1/6103 useless extension candidates. Maximal degree in co-relation 42956. Up to 3539 conditions per place. [2024-11-28 04:59:00,514 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 617 selfloop transitions, 385 changer transitions 0/1012 dead transitions. [2024-11-28 04:59:00,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1012 transitions, 24821 flow [2024-11-28 04:59:00,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:59:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:59:00,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 781 transitions. [2024-11-28 04:59:00,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3576007326007326 [2024-11-28 04:59:00,517 INFO L175 Difference]: Start difference. First operand has 420 places, 867 transitions, 20431 flow. Second operand 21 states and 781 transitions. [2024-11-28 04:59:00,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1012 transitions, 24821 flow [2024-11-28 04:59:02,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1012 transitions, 24038 flow, removed 174 selfloop flow, removed 14 redundant places. [2024-11-28 04:59:02,102 INFO L231 Difference]: Finished difference. Result has 438 places, 948 transitions, 22984 flow [2024-11-28 04:59:02,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=19877, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=307, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=22984, PETRI_PLACES=438, PETRI_TRANSITIONS=948} [2024-11-28 04:59:02,104 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 340 predicate places. [2024-11-28 04:59:02,104 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 948 transitions, 22984 flow [2024-11-28 04:59:02,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:02,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:02,105 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:02,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:59:02,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:02,305 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:59:02,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:02,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2098085132, now seen corresponding path program 23 times [2024-11-28 04:59:02,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:02,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474053431] [2024-11-28 04:59:02,307 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:59:02,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:02,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:02,309 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:02,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:59:02,676 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:59:02,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:02,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:59:02,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:02,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:02,773 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:02,773 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:02,774 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:02,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:59:03,363 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:03,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 04:59:03,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:03,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:03,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:03,698 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:03,699 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:03,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 04:59:03,909 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:59:04,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 04:59:04,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:04,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 04:59:04,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:04,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 04:59:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:04,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:04,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:04,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474053431] [2024-11-28 04:59:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474053431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:04,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:04,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:59:04,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889838779] [2024-11-28 04:59:04,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:04,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:59:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:04,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:59:04,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:59:06,652 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:59:06,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 948 transitions, 22984 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:06,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:06,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:59:06,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:21,888 INFO L124 PetriNetUnfolderBase]: 2848/6587 cut-off events. [2024-11-28 04:59:21,888 INFO L125 PetriNetUnfolderBase]: For 154877/154877 co-relation queries the response was YES. [2024-11-28 04:59:21,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47580 conditions, 6587 events. 2848/6587 cut-off events. For 154877/154877 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 57346 event pairs, 605 based on Foata normal form. 1/6588 useless extension candidates. Maximal degree in co-relation 47421. Up to 3903 conditions per place. [2024-11-28 04:59:22,185 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 602 selfloop transitions, 497 changer transitions 0/1109 dead transitions. [2024-11-28 04:59:22,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 1109 transitions, 27263 flow [2024-11-28 04:59:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:59:22,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-28 04:59:22,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 850 transitions. [2024-11-28 04:59:22,187 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35535117056856186 [2024-11-28 04:59:22,187 INFO L175 Difference]: Start difference. First operand has 438 places, 948 transitions, 22984 flow. Second operand 23 states and 850 transitions. [2024-11-28 04:59:22,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 1109 transitions, 27263 flow [2024-11-28 04:59:23,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1109 transitions, 27021 flow, removed 81 selfloop flow, removed 7 redundant places. [2024-11-28 04:59:23,844 INFO L231 Difference]: Finished difference. Result has 464 places, 1034 transitions, 25940 flow [2024-11-28 04:59:23,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=22748, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=25940, PETRI_PLACES=464, PETRI_TRANSITIONS=1034} [2024-11-28 04:59:23,845 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 366 predicate places. [2024-11-28 04:59:23,845 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 1034 transitions, 25940 flow [2024-11-28 04:59:23,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:23,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:23,846 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:23,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 04:59:24,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:24,046 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:59:24,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:24,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1461318416, now seen corresponding path program 24 times [2024-11-28 04:59:24,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:24,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139717188] [2024-11-28 04:59:24,047 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:59:24,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:24,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:24,049 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:24,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:59:24,401 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:59:24,401 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:24,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:59:24,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:24,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:24,500 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:24,501 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:24,501 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:24,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:59:25,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:25,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:25,110 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:25,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 69 [2024-11-28 04:59:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:25,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:25,293 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:25,293 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:25,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2024-11-28 04:59:25,593 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:59:25,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:59:26,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:26,254 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:26,255 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:26,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:26,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:59:26,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:26,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:59:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:26,577 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:26,577 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:26,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139717188] [2024-11-28 04:59:26,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139717188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:26,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:26,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:59:26,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718648303] [2024-11-28 04:59:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:26,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:59:26,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:26,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:59:26,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:59:28,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:59:28,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 1034 transitions, 25940 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:28,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:28,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:59:28,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:43,247 INFO L124 PetriNetUnfolderBase]: 2909/6758 cut-off events. [2024-11-28 04:59:43,247 INFO L125 PetriNetUnfolderBase]: For 179131/179131 co-relation queries the response was YES. [2024-11-28 04:59:43,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51920 conditions, 6758 events. 2909/6758 cut-off events. For 179131/179131 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 59289 event pairs, 851 based on Foata normal form. 1/6759 useless extension candidates. Maximal degree in co-relation 51750. Up to 4196 conditions per place. [2024-11-28 04:59:43,357 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 655 selfloop transitions, 453 changer transitions 0/1118 dead transitions. [2024-11-28 04:59:43,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1118 transitions, 29181 flow [2024-11-28 04:59:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:59:43,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 04:59:43,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 748 transitions. [2024-11-28 04:59:43,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3596153846153846 [2024-11-28 04:59:43,359 INFO L175 Difference]: Start difference. First operand has 464 places, 1034 transitions, 25940 flow. Second operand 20 states and 748 transitions. [2024-11-28 04:59:43,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1118 transitions, 29181 flow [2024-11-28 04:59:45,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1118 transitions, 28964 flow, removed 80 selfloop flow, removed 6 redundant places. [2024-11-28 04:59:45,628 INFO L231 Difference]: Finished difference. Result has 482 places, 1052 transitions, 27423 flow [2024-11-28 04:59:45,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=25741, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1034, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=435, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=27423, PETRI_PLACES=482, PETRI_TRANSITIONS=1052} [2024-11-28 04:59:45,629 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 384 predicate places. [2024-11-28 04:59:45,629 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 1052 transitions, 27423 flow [2024-11-28 04:59:45,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:45,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:45,629 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:45,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-28 04:59:45,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:45,830 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 04:59:45,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash 150545246, now seen corresponding path program 25 times [2024-11-28 04:59:45,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:45,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493324702] [2024-11-28 04:59:45,831 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:59:45,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:45,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:45,834 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:45,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:59:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:46,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:59:46,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:46,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:46,341 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:46,342 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:46,342 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:46,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 04:59:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:46,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:46,959 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:46,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 69 [2024-11-28 04:59:47,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:47,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:47,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:47,108 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:47,108 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:47,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2024-11-28 04:59:47,165 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 04:59:47,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2024-11-28 04:59:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:47,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:47,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:47,884 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:47,885 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:47,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:47,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 143 [2024-11-28 04:59:48,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:48,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 173 treesize of output 109 [2024-11-28 04:59:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:48,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:48,223 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493324702] [2024-11-28 04:59:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493324702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:48,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:48,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:59:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681013854] [2024-11-28 04:59:48,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:48,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:59:48,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:48,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:59:48,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:59:50,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 04:59:50,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 1052 transitions, 27423 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:50,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:50,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 04:59:50,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:00:04,684 INFO L124 PetriNetUnfolderBase]: 2942/6853 cut-off events. [2024-11-28 05:00:04,684 INFO L125 PetriNetUnfolderBase]: For 190377/190377 co-relation queries the response was YES. [2024-11-28 05:00:04,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53777 conditions, 6853 events. 2942/6853 cut-off events. For 190377/190377 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 60439 event pairs, 800 based on Foata normal form. 1/6854 useless extension candidates. Maximal degree in co-relation 53601. Up to 3947 conditions per place. [2024-11-28 05:00:04,812 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 596 selfloop transitions, 545 changer transitions 0/1151 dead transitions. [2024-11-28 05:00:04,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 1151 transitions, 31099 flow [2024-11-28 05:00:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 05:00:04,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 05:00:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 783 transitions. [2024-11-28 05:00:04,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3585164835164835 [2024-11-28 05:00:04,814 INFO L175 Difference]: Start difference. First operand has 482 places, 1052 transitions, 27423 flow. Second operand 21 states and 783 transitions. [2024-11-28 05:00:04,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 1151 transitions, 31099 flow [2024-11-28 05:00:07,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 1151 transitions, 30482 flow, removed 37 selfloop flow, removed 12 redundant places. [2024-11-28 05:00:07,335 INFO L231 Difference]: Finished difference. Result has 494 places, 1079 transitions, 29011 flow [2024-11-28 05:00:07,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=26814, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=522, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=29011, PETRI_PLACES=494, PETRI_TRANSITIONS=1079} [2024-11-28 05:00:07,336 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 396 predicate places. [2024-11-28 05:00:07,336 INFO L471 AbstractCegarLoop]: Abstraction has has 494 places, 1079 transitions, 29011 flow [2024-11-28 05:00:07,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:07,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:00:07,336 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:07,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-28 05:00:07,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:07,537 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 05:00:07,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:07,538 INFO L85 PathProgramCache]: Analyzing trace with hash -680137468, now seen corresponding path program 26 times [2024-11-28 05:00:07,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:07,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299053990] [2024-11-28 05:00:07,538 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:07,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:07,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:07,540 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:07,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 05:00:07,903 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:00:07,903 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:07,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 05:00:07,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:07,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:00:07,989 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:07,989 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:07,990 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:07,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 05:00:08,581 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:08,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 05:00:08,821 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:00:08,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:00:08,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:00:08,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:00:08,834 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:08,835 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:08,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 05:00:09,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 109 [2024-11-28 05:00:09,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:09,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 133 [2024-11-28 05:00:10,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:10,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-11-28 05:00:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:10,567 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:10,567 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299053990] [2024-11-28 05:00:10,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299053990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:10,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:10,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:00:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757883840] [2024-11-28 05:00:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:10,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:00:10,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:10,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:00:10,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:00:13,030 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 05:00:13,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 1079 transitions, 29011 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:13,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:00:13,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 05:00:13,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:00:24,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:00:29,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 05:00:35,950 INFO L124 PetriNetUnfolderBase]: 3098/7259 cut-off events. [2024-11-28 05:00:35,950 INFO L125 PetriNetUnfolderBase]: For 212849/212849 co-relation queries the response was YES. [2024-11-28 05:00:36,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57051 conditions, 7259 events. 3098/7259 cut-off events. For 212849/212849 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 64991 event pairs, 705 based on Foata normal form. 1/7260 useless extension candidates. Maximal degree in co-relation 56871. Up to 3040 conditions per place. [2024-11-28 05:00:36,191 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 508 selfloop transitions, 716 changer transitions 0/1234 dead transitions. [2024-11-28 05:00:36,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 1234 transitions, 34388 flow [2024-11-28 05:00:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 05:00:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-28 05:00:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 893 transitions. [2024-11-28 05:00:36,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3577724358974359 [2024-11-28 05:00:36,193 INFO L175 Difference]: Start difference. First operand has 494 places, 1079 transitions, 29011 flow. Second operand 24 states and 893 transitions. [2024-11-28 05:00:36,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 1234 transitions, 34388 flow [2024-11-28 05:00:39,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1234 transitions, 33652 flow, removed 95 selfloop flow, removed 15 redundant places. [2024-11-28 05:00:39,341 INFO L231 Difference]: Finished difference. Result has 511 places, 1160 transitions, 33051 flow [2024-11-28 05:00:39,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=28380, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=33051, PETRI_PLACES=511, PETRI_TRANSITIONS=1160} [2024-11-28 05:00:39,342 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 413 predicate places. [2024-11-28 05:00:39,342 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 1160 transitions, 33051 flow [2024-11-28 05:00:39,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:39,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:00:39,343 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:39,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 05:00:39,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:39,546 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 05:00:39,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:39,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1037295740, now seen corresponding path program 27 times [2024-11-28 05:00:39,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:39,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044046265] [2024-11-28 05:00:39,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:00:39,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:39,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:39,549 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:39,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 05:00:39,966 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 05:00:39,966 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:39,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 05:00:39,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:39,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:00:40,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:40,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:40,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:40,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 05:00:40,540 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:40,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 05:00:40,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:00:40,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:00:40,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:00:40,839 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:40,840 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:00:40,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 05:00:40,892 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:00:41,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 05:00:41,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:41,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 05:00:41,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:41,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 05:00:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:41,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:41,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:41,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044046265] [2024-11-28 05:00:41,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044046265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:41,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:41,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:00:41,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293532844] [2024-11-28 05:00:41,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:41,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:00:41,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:41,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:00:41,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:00:44,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 05:00:44,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 1160 transitions, 33051 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:44,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:00:44,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 05:00:44,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:00:59,294 INFO L124 PetriNetUnfolderBase]: 3110/7303 cut-off events. [2024-11-28 05:00:59,294 INFO L125 PetriNetUnfolderBase]: For 236469/236469 co-relation queries the response was YES. [2024-11-28 05:00:59,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59993 conditions, 7303 events. 3110/7303 cut-off events. For 236469/236469 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 65641 event pairs, 584 based on Foata normal form. 1/7304 useless extension candidates. Maximal degree in co-relation 59803. Up to 4509 conditions per place. [2024-11-28 05:00:59,417 INFO L140 encePairwiseOnDemand]: 87/104 looper letters, 697 selfloop transitions, 518 changer transitions 0/1225 dead transitions. [2024-11-28 05:00:59,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1225 transitions, 36308 flow [2024-11-28 05:00:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:00:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 05:00:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 813 transitions. [2024-11-28 05:00:59,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3553321678321678 [2024-11-28 05:00:59,420 INFO L175 Difference]: Start difference. First operand has 511 places, 1160 transitions, 33051 flow. Second operand 22 states and 813 transitions. [2024-11-28 05:00:59,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1225 transitions, 36308 flow [2024-11-28 05:01:02,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1225 transitions, 35883 flow, removed 160 selfloop flow, removed 11 redundant places. [2024-11-28 05:01:02,862 INFO L231 Difference]: Finished difference. Result has 524 places, 1172 transitions, 34427 flow [2024-11-28 05:01:02,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=32672, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=34427, PETRI_PLACES=524, PETRI_TRANSITIONS=1172} [2024-11-28 05:01:02,864 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 426 predicate places. [2024-11-28 05:01:02,864 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 1172 transitions, 34427 flow [2024-11-28 05:01:02,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:01:02,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:01:02,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:02,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 05:01:03,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:03,065 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-28 05:01:03,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash 326446302, now seen corresponding path program 28 times [2024-11-28 05:01:03,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:01:03,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57009836] [2024-11-28 05:01:03,066 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:01:03,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:03,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:03,068 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:03,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeea27b3-7fcf-4bc7-942c-c4c6ffaf87d2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 05:01:03,552 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:01:03,552 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:03,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 05:01:03,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:03,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:01:03,664 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:01:03,665 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:01:03,666 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:01:03,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-28 05:01:04,263 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 05:01:04,273 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:01:04,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-28 05:01:04,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:01:04,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:01:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:01:04,752 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:01:04,752 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 05:01:04,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 85 [2024-11-28 05:01:05,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 125 [2024-11-28 05:01:05,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:01:05,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 146 treesize of output 139 [2024-11-28 05:01:05,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:01:05,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 63 [2024-11-28 05:01:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:01:05,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:01:05,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:01:05,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57009836] [2024-11-28 05:01:05,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57009836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:01:05,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:01:05,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:01:05,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866297361] [2024-11-28 05:01:05,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:01:05,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:01:05,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:01:05,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:01:05,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:01:08,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 104 [2024-11-28 05:01:08,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1172 transitions, 34427 flow. Second operand has 14 states, 14 states have (on average 31.928571428571427) internal successors, (447), 14 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:01:08,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:01:08,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 104 [2024-11-28 05:01:08,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand