./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:14:52,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:14:52,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 14:14:52,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:14:52,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:14:52,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:14:52,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:14:52,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:14:52,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:14:52,504 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:14:52,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:14:52,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:14:52,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:14:52,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 14:14:52,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:14:52,506 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:14:52,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:14:52,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:14:52,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:14:52,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:14:52,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:14:52,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:14:52,507 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2025-03-17 14:14:52,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:14:52,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:14:52,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:14:52,751 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:14:52,751 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:14:52,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2025-03-17 14:14:53,847 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0f8bc68/3f48accab0e94d0097aa9f49eba27b97/FLAGa11367da0 [2025-03-17 14:14:54,203 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:14:54,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2025-03-17 14:14:54,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0f8bc68/3f48accab0e94d0097aa9f49eba27b97/FLAGa11367da0 [2025-03-17 14:14:54,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0f8bc68/3f48accab0e94d0097aa9f49eba27b97 [2025-03-17 14:14:54,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:14:54,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:14:54,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:14:54,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:14:54,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:14:54,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:14:54" (1/1) ... [2025-03-17 14:14:54,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c60e3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:54, skipping insertion in model container [2025-03-17 14:14:54,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:14:54" (1/1) ... [2025-03-17 14:14:54,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:14:54,706 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:54,714 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:54,720 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:54,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:14:54,735 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) [2025-03-17 14:14:54,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2722256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:54, skipping insertion in model container [2025-03-17 14:14:54,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:14:54,736 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 14:14:54,739 INFO L158 Benchmark]: Toolchain (without parser) took 303.81ms. Allocated memory is still 167.8MB. Free memory was 128.0MB in the beginning and 110.3MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 14:14:54,739 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 192.9MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:14:54,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.18ms. Allocated memory is still 167.8MB. Free memory was 127.7MB in the beginning and 110.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 14:14:54,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 192.9MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.18ms. Allocated memory is still 167.8MB. Free memory was 127.7MB in the beginning and 110.3MB in the end (delta: 17.4MB). 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: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:14:56,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:14:56,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-17 14:14:56,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:14:56,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:14:56,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:14:56,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:14:56,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:14:56,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:14:56,458 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:14:56,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:14:56,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:14:56,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:14:56,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:14:56,459 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:14:56,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:14:56,459 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:14:56,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 14:14:56,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:14:56,461 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:14:56,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:14:56,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:14:56,462 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 14:14:56,462 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 14:14:56,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:14:56,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:14:56,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:14:56,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:14:56,462 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2025-03-17 14:14:56,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:14:56,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:14:56,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:14:56,699 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:14:56,700 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:14:56,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2025-03-17 14:14:57,821 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14b83080/4b7f2de6658240a6b66951a1398486fe/FLAG1016e24a0 [2025-03-17 14:14:58,096 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:14:58,097 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2025-03-17 14:14:58,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14b83080/4b7f2de6658240a6b66951a1398486fe/FLAG1016e24a0 [2025-03-17 14:14:58,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14b83080/4b7f2de6658240a6b66951a1398486fe [2025-03-17 14:14:58,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:14:58,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:14:58,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:14:58,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:14:58,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:14:58,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499c21fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58, skipping insertion in model container [2025-03-17 14:14:58,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:14:58,552 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:58,561 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:58,565 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:58,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:14:58,588 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 14:14:58,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:14:58,637 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:58,640 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:58,642 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 14:14:58,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:14:58,652 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:14:58,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:14:58,740 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:14:58,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58 WrapperNode [2025-03-17 14:14:58,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:14:58,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:14:58,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:14:58,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:14:58,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,787 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2025-03-17 14:14:58,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:14:58,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:14:58,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:14:58,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:14:58,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,816 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2025-03-17 14:14:58,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,831 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:14:58,844 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:14:58,844 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:14:58,844 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:14:58,845 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (1/1) ... [2025-03-17 14:14:58,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:14:58,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:14:58,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:14:58,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-17 14:14:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 14:14:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 14:14:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 14:14:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 14:14:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 14:14:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 14:14:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 14:14:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 14:14:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 14:14:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:14:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:14:58,914 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 14:14:59,127 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:14:59,129 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:14:59,551 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 14:14:59,551 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:14:59,687 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:14:59,687 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:14:59,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:14:59 BoogieIcfgContainer [2025-03-17 14:14:59,688 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:14:59,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:14:59,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:14:59,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:14:59,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:14:58" (1/3) ... [2025-03-17 14:14:59,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eb26dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:14:59, skipping insertion in model container [2025-03-17 14:14:59,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:14:58" (2/3) ... [2025-03-17 14:14:59,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eb26dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:14:59, skipping insertion in model container [2025-03-17 14:14:59,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:14:59" (3/3) ... [2025-03-17 14:14:59,697 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2025-03-17 14:14:59,707 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:14:59,708 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_3-container_of.i that has 2 procedures, 100 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2025-03-17 14:14:59,709 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 14:14:59,768 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 14:14:59,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 125 transitions, 264 flow [2025-03-17 14:14:59,843 INFO L124 PetriNetUnfolderBase]: 14/158 cut-off events. [2025-03-17 14:14:59,845 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 14:14:59,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 158 events. 14/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 520 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 84. Up to 4 conditions per place. [2025-03-17 14:14:59,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 125 transitions, 264 flow [2025-03-17 14:14:59,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 123 transitions, 258 flow [2025-03-17 14:14:59,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:14:59,878 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;@1556335a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:14:59,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-03-17 14:14:59,882 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 14:14:59,882 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-03-17 14:14:59,882 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:14:59,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:14:59,883 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 14:14:59,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:14:59,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:14:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash 546261, now seen corresponding path program 1 times [2025-03-17 14:14:59,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:14:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907026047] [2025-03-17 14:14:59,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:14:59,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:14:59,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:14:59,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:14:59,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:15:00,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:15:00,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:15:00,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:00,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:00,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:15:00,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:00,060 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 [2025-03-17 14:15:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:00,071 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:00,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:00,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907026047] [2025-03-17 14:15:00,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907026047] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:00,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:00,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:00,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031150821] [2025-03-17 14:15:00,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:00,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:00,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:00,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:00,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:00,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 125 [2025-03-17 14:15:00,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 123 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:00,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:00,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 125 [2025-03-17 14:15:00,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:01,670 INFO L124 PetriNetUnfolderBase]: 7503/15810 cut-off events. [2025-03-17 14:15:01,670 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-03-17 14:15:01,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27555 conditions, 15810 events. 7503/15810 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 146966 event pairs, 4199 based on Foata normal form. 792/10607 useless extension candidates. Maximal degree in co-relation 27315. Up to 6584 conditions per place. [2025-03-17 14:15:01,761 INFO L140 encePairwiseOnDemand]: 109/125 looper letters, 89 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2025-03-17 14:15:01,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 131 transitions, 456 flow [2025-03-17 14:15:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:01,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2025-03-17 14:15:01,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.616 [2025-03-17 14:15:01,774 INFO L175 Difference]: Start difference. First operand has 119 places, 123 transitions, 258 flow. Second operand 3 states and 231 transitions. [2025-03-17 14:15:01,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 131 transitions, 456 flow [2025-03-17 14:15:01,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 131 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 14:15:01,785 INFO L231 Difference]: Finished difference. Result has 107 places, 105 transitions, 218 flow [2025-03-17 14:15:01,788 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=107, PETRI_TRANSITIONS=105} [2025-03-17 14:15:01,791 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -12 predicate places. [2025-03-17 14:15:01,791 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 105 transitions, 218 flow [2025-03-17 14:15:01,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:01,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:01,792 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 14:15:01,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 14:15:01,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:01,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:01,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash 546262, now seen corresponding path program 1 times [2025-03-17 14:15:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:01,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732169955] [2025-03-17 14:15:01,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:01,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:01,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:01,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:02,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:15:02,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:15:02,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:15:02,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:02,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:02,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:15:02,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:02,111 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 [2025-03-17 14:15:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:02,121 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:02,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:02,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732169955] [2025-03-17 14:15:02,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732169955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:02,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:02,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:02,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47257602] [2025-03-17 14:15:02,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:02,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:02,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:02,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:02,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 125 [2025-03-17 14:15:02,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 105 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2025-03-17 14:15:02,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:02,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 125 [2025-03-17 14:15:02,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:03,252 INFO L124 PetriNetUnfolderBase]: 6047/13568 cut-off events. [2025-03-17 14:15:03,252 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2025-03-17 14:15:03,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23239 conditions, 13568 events. 6047/13568 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 130743 event pairs, 2743 based on Foata normal form. 1/9036 useless extension candidates. Maximal degree in co-relation 8831. Up to 5113 conditions per place. [2025-03-17 14:15:03,315 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 84 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2025-03-17 14:15:03,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 125 transitions, 430 flow [2025-03-17 14:15:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2025-03-17 14:15:03,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5893333333333334 [2025-03-17 14:15:03,317 INFO L175 Difference]: Start difference. First operand has 107 places, 105 transitions, 218 flow. Second operand 3 states and 221 transitions. [2025-03-17 14:15:03,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 125 transitions, 430 flow [2025-03-17 14:15:03,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 125 transitions, 426 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:03,324 INFO L231 Difference]: Finished difference. Result has 101 places, 99 transitions, 206 flow [2025-03-17 14:15:03,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=101, PETRI_TRANSITIONS=99} [2025-03-17 14:15:03,325 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -18 predicate places. [2025-03-17 14:15:03,325 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 99 transitions, 206 flow [2025-03-17 14:15:03,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2025-03-17 14:15:03,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:03,326 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-17 14:15:03,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 14:15:03,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:03,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:03,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash 16935454, now seen corresponding path program 1 times [2025-03-17 14:15:03,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:03,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983572155] [2025-03-17 14:15:03,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:03,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:03,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:03,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:03,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:15:03,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 14:15:03,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 14:15:03,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:03,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:03,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 14:15:03,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:03,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:03,624 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:03,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983572155] [2025-03-17 14:15:03,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983572155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:03,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:03,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:15:03,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235482510] [2025-03-17 14:15:03,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:03,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:03,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:03,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:03,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 125 [2025-03-17 14:15:03,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 99 transitions, 206 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) [2025-03-17 14:15:03,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:03,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 125 [2025-03-17 14:15:03,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:04,476 INFO L124 PetriNetUnfolderBase]: 6411/12535 cut-off events. [2025-03-17 14:15:04,477 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2025-03-17 14:15:04,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22768 conditions, 12535 events. 6411/12535 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 106807 event pairs, 6045 based on Foata normal form. 0/7985 useless extension candidates. Maximal degree in co-relation 8831. Up to 9455 conditions per place. [2025-03-17 14:15:04,527 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 84 selfloop transitions, 3 changer transitions 2/126 dead transitions. [2025-03-17 14:15:04,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 126 transitions, 436 flow [2025-03-17 14:15:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2025-03-17 14:15:04,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5893333333333334 [2025-03-17 14:15:04,529 INFO L175 Difference]: Start difference. First operand has 101 places, 99 transitions, 206 flow. Second operand 3 states and 221 transitions. [2025-03-17 14:15:04,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 126 transitions, 436 flow [2025-03-17 14:15:04,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 126 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:04,536 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 211 flow [2025-03-17 14:15:04,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2025-03-17 14:15:04,537 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -17 predicate places. [2025-03-17 14:15:04,537 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 211 flow [2025-03-17 14:15:04,537 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) [2025-03-17 14:15:04,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:04,537 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:04,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 14:15:04,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:04,738 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:04,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1943348173, now seen corresponding path program 1 times [2025-03-17 14:15:04,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:04,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313908442] [2025-03-17 14:15:04,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:04,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:04,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:04,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:04,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:15:04,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 14:15:04,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 14:15:04,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:04,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:04,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 14:15:04,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:04,838 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 [2025-03-17 14:15:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:04,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:04,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:04,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313908442] [2025-03-17 14:15:04,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313908442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:04,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:04,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:04,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398825669] [2025-03-17 14:15:04,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:04,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:04,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:04,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:04,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:04,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 125 [2025-03-17 14:15:04,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 211 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) [2025-03-17 14:15:04,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:04,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 125 [2025-03-17 14:15:04,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:05,766 INFO L124 PetriNetUnfolderBase]: 6774/12660 cut-off events. [2025-03-17 14:15:05,766 INFO L125 PetriNetUnfolderBase]: For 596/596 co-relation queries the response was YES. [2025-03-17 14:15:05,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23654 conditions, 12660 events. 6774/12660 cut-off events. For 596/596 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 102773 event pairs, 6045 based on Foata normal form. 0/8878 useless extension candidates. Maximal degree in co-relation 22324. Up to 9453 conditions per place. [2025-03-17 14:15:05,810 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 85 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2025-03-17 14:15:05,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 119 transitions, 431 flow [2025-03-17 14:15:05,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2025-03-17 14:15:05,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2025-03-17 14:15:05,811 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 211 flow. Second operand 3 states and 205 transitions. [2025-03-17 14:15:05,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 119 transitions, 431 flow [2025-03-17 14:15:05,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 119 transitions, 420 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-17 14:15:05,826 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 198 flow [2025-03-17 14:15:05,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2025-03-17 14:15:05,827 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -23 predicate places. [2025-03-17 14:15:05,827 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 198 flow [2025-03-17 14:15:05,827 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) [2025-03-17 14:15:05,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:05,827 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:05,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 14:15:06,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:06,028 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:06,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1943348172, now seen corresponding path program 1 times [2025-03-17 14:15:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697764805] [2025-03-17 14:15:06,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:06,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:06,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:06,032 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:06,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:15:06,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 14:15:06,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 14:15:06,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:06,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:06,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:15:06,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:06,131 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 [2025-03-17 14:15:06,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:06,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:06,172 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:06,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697764805] [2025-03-17 14:15:06,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697764805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:06,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:06,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:06,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30566616] [2025-03-17 14:15:06,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:06,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:06,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:06,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:06,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:06,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 125 [2025-03-17 14:15:06,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:06,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:06,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 125 [2025-03-17 14:15:06,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:06,945 INFO L124 PetriNetUnfolderBase]: 6046/11321 cut-off events. [2025-03-17 14:15:06,945 INFO L125 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2025-03-17 14:15:06,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21007 conditions, 11321 events. 6046/11321 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 89675 event pairs, 4927 based on Foata normal form. 282/8125 useless extension candidates. Maximal degree in co-relation 18107. Up to 7709 conditions per place. [2025-03-17 14:15:06,972 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 95 selfloop transitions, 3 changer transitions 0/125 dead transitions. [2025-03-17 14:15:06,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 125 transitions, 460 flow [2025-03-17 14:15:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:06,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2025-03-17 14:15:06,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.584 [2025-03-17 14:15:06,974 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 198 flow. Second operand 3 states and 219 transitions. [2025-03-17 14:15:06,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 125 transitions, 460 flow [2025-03-17 14:15:06,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 125 transitions, 450 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:06,978 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 211 flow [2025-03-17 14:15:06,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2025-03-17 14:15:06,978 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -22 predicate places. [2025-03-17 14:15:06,979 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 211 flow [2025-03-17 14:15:06,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:06,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:06,979 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:06,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 14:15:07,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:07,179 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:07,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:07,180 INFO L85 PathProgramCache]: Analyzing trace with hash -11246686, now seen corresponding path program 1 times [2025-03-17 14:15:07,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:07,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988466071] [2025-03-17 14:15:07,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:07,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:07,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:07,182 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:07,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:15:07,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 14:15:07,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 14:15:07,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:07,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:07,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 14:15:07,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:07,307 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:07,307 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988466071] [2025-03-17 14:15:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988466071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:07,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:07,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:15:07,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720688584] [2025-03-17 14:15:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:07,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:15:07,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:07,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:15:07,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:15:07,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 125 [2025-03-17 14:15:07,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 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) [2025-03-17 14:15:07,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:07,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 125 [2025-03-17 14:15:07,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:08,586 INFO L124 PetriNetUnfolderBase]: 5077/10002 cut-off events. [2025-03-17 14:15:08,586 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2025-03-17 14:15:08,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18697 conditions, 10002 events. 5077/10002 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 79026 event pairs, 925 based on Foata normal form. 0/7559 useless extension candidates. Maximal degree in co-relation 13633. Up to 3180 conditions per place. [2025-03-17 14:15:08,619 INFO L140 encePairwiseOnDemand]: 113/125 looper letters, 165 selfloop transitions, 13 changer transitions 1/211 dead transitions. [2025-03-17 14:15:08,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 211 transitions, 816 flow [2025-03-17 14:15:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:15:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:15:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 538 transitions. [2025-03-17 14:15:08,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.538 [2025-03-17 14:15:08,621 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 211 flow. Second operand 8 states and 538 transitions. [2025-03-17 14:15:08,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 211 transitions, 816 flow [2025-03-17 14:15:08,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 211 transitions, 809 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 14:15:08,631 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 299 flow [2025-03-17 14:15:08,631 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=299, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2025-03-17 14:15:08,633 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -12 predicate places. [2025-03-17 14:15:08,633 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 299 flow [2025-03-17 14:15:08,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 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) [2025-03-17 14:15:08,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:08,633 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:08,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 14:15:08,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:08,834 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:08,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:08,834 INFO L85 PathProgramCache]: Analyzing trace with hash -11246685, now seen corresponding path program 1 times [2025-03-17 14:15:08,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291614332] [2025-03-17 14:15:08,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:08,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:08,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:08,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:08,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 14:15:08,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 14:15:08,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 14:15:08,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:08,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:08,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 14:15:08,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:08,970 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 [2025-03-17 14:15:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:09,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:09,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:09,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291614332] [2025-03-17 14:15:09,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291614332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:09,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:09,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:15:09,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667478269] [2025-03-17 14:15:09,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:09,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:15:09,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:09,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:15:09,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:15:09,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 125 [2025-03-17 14:15:09,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 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) [2025-03-17 14:15:09,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:09,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 125 [2025-03-17 14:15:09,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:10,250 INFO L124 PetriNetUnfolderBase]: 3695/7470 cut-off events. [2025-03-17 14:15:10,250 INFO L125 PetriNetUnfolderBase]: For 2492/2513 co-relation queries the response was YES. [2025-03-17 14:15:10,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15405 conditions, 7470 events. 3695/7470 cut-off events. For 2492/2513 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 57963 event pairs, 203 based on Foata normal form. 752/7035 useless extension candidates. Maximal degree in co-relation 13942. Up to 2812 conditions per place. [2025-03-17 14:15:10,276 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 146 selfloop transitions, 10 changer transitions 2/191 dead transitions. [2025-03-17 14:15:10,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 191 transitions, 811 flow [2025-03-17 14:15:10,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:15:10,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 14:15:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 474 transitions. [2025-03-17 14:15:10,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5417142857142857 [2025-03-17 14:15:10,278 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 299 flow. Second operand 7 states and 474 transitions. [2025-03-17 14:15:10,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 191 transitions, 811 flow [2025-03-17 14:15:10,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 191 transitions, 811 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 14:15:10,294 INFO L231 Difference]: Finished difference. Result has 116 places, 105 transitions, 352 flow [2025-03-17 14:15:10,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=352, PETRI_PLACES=116, PETRI_TRANSITIONS=105} [2025-03-17 14:15:10,295 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2025-03-17 14:15:10,295 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 105 transitions, 352 flow [2025-03-17 14:15:10,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 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) [2025-03-17 14:15:10,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:10,296 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:10,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 14:15:10,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:10,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:10,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:10,497 INFO L85 PathProgramCache]: Analyzing trace with hash 800979358, now seen corresponding path program 1 times [2025-03-17 14:15:10,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:10,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756237639] [2025-03-17 14:15:10,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:10,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:10,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:10,499 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:10,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 14:15:10,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:15:10,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:15:10,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:10,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:10,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 14:15:10,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:10,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:10,645 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:10,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756237639] [2025-03-17 14:15:10,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756237639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:10,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:10,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:15:10,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709068976] [2025-03-17 14:15:10,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:10,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:15:10,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:10,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:15:10,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:15:10,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 125 [2025-03-17 14:15:10,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 105 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 45.833333333333336) internal successors, (275), 6 states have internal predecessors, (275), 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) [2025-03-17 14:15:10,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:10,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 125 [2025-03-17 14:15:10,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:11,732 INFO L124 PetriNetUnfolderBase]: 3281/6559 cut-off events. [2025-03-17 14:15:11,732 INFO L125 PetriNetUnfolderBase]: For 4524/4524 co-relation queries the response was YES. [2025-03-17 14:15:11,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14579 conditions, 6559 events. 3281/6559 cut-off events. For 4524/4524 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 48572 event pairs, 191 based on Foata normal form. 0/5738 useless extension candidates. Maximal degree in co-relation 13341. Up to 1760 conditions per place. [2025-03-17 14:15:11,751 INFO L140 encePairwiseOnDemand]: 113/125 looper letters, 156 selfloop transitions, 17 changer transitions 0/205 dead transitions. [2025-03-17 14:15:11,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 205 transitions, 1035 flow [2025-03-17 14:15:11,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:15:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:15:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 520 transitions. [2025-03-17 14:15:11,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.52 [2025-03-17 14:15:11,753 INFO L175 Difference]: Start difference. First operand has 116 places, 105 transitions, 352 flow. Second operand 8 states and 520 transitions. [2025-03-17 14:15:11,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 205 transitions, 1035 flow [2025-03-17 14:15:11,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 205 transitions, 1005 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 14:15:11,762 INFO L231 Difference]: Finished difference. Result has 122 places, 114 transitions, 455 flow [2025-03-17 14:15:11,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=455, PETRI_PLACES=122, PETRI_TRANSITIONS=114} [2025-03-17 14:15:11,762 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 3 predicate places. [2025-03-17 14:15:11,762 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 114 transitions, 455 flow [2025-03-17 14:15:11,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.833333333333336) internal successors, (275), 6 states have internal predecessors, (275), 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) [2025-03-17 14:15:11,762 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:11,762 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:11,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 14:15:11,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:11,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:11,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash 800979359, now seen corresponding path program 1 times [2025-03-17 14:15:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:11,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252786693] [2025-03-17 14:15:11,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:11,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:11,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:11,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:11,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 14:15:12,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:15:12,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:15:12,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:12,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:12,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 14:15:12,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:12,064 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 [2025-03-17 14:15:12,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:12,124 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:12,124 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:12,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252786693] [2025-03-17 14:15:12,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252786693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:12,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:12,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:15:12,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610875936] [2025-03-17 14:15:12,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:12,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:15:12,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:12,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:15:12,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:15:12,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 125 [2025-03-17 14:15:12,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 455 flow. Second operand has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 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) [2025-03-17 14:15:12,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:12,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 125 [2025-03-17 14:15:12,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:12,937 INFO L124 PetriNetUnfolderBase]: 2407/4901 cut-off events. [2025-03-17 14:15:12,937 INFO L125 PetriNetUnfolderBase]: For 4852/4868 co-relation queries the response was YES. [2025-03-17 14:15:12,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12067 conditions, 4901 events. 2407/4901 cut-off events. For 4852/4868 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 34550 event pairs, 342 based on Foata normal form. 512/5271 useless extension candidates. Maximal degree in co-relation 11053. Up to 2130 conditions per place. [2025-03-17 14:15:12,952 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 140 selfloop transitions, 14 changer transitions 1/188 dead transitions. [2025-03-17 14:15:12,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 188 transitions, 1011 flow [2025-03-17 14:15:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:15:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 14:15:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 457 transitions. [2025-03-17 14:15:12,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5222857142857142 [2025-03-17 14:15:12,954 INFO L175 Difference]: Start difference. First operand has 122 places, 114 transitions, 455 flow. Second operand 7 states and 457 transitions. [2025-03-17 14:15:12,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 188 transitions, 1011 flow [2025-03-17 14:15:12,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 188 transitions, 1008 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 14:15:12,963 INFO L231 Difference]: Finished difference. Result has 130 places, 117 transitions, 526 flow [2025-03-17 14:15:12,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=526, PETRI_PLACES=130, PETRI_TRANSITIONS=117} [2025-03-17 14:15:12,963 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 11 predicate places. [2025-03-17 14:15:12,963 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 117 transitions, 526 flow [2025-03-17 14:15:12,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 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) [2025-03-17 14:15:12,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:12,964 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:12,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 14:15:13,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:13,164 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:13,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash 799621554, now seen corresponding path program 1 times [2025-03-17 14:15:13,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:13,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446250136] [2025-03-17 14:15:13,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:13,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:13,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:13,166 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:13,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 14:15:13,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:15:13,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:15:13,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:13,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:13,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:15:13,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:13,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 14:15:13,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 14:15:13,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 14:15:13,283 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:13,284 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:13,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-17 14:15:13,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 14:15:13,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2025-03-17 14:15:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:13,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:13,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:13,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446250136] [2025-03-17 14:15:13,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446250136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:13,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:13,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105170175] [2025-03-17 14:15:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:13,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:13,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:13,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:13,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 125 [2025-03-17 14:15:13,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 117 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:13,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:13,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 125 [2025-03-17 14:15:13,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:14,083 INFO L124 PetriNetUnfolderBase]: 3083/5542 cut-off events. [2025-03-17 14:15:14,083 INFO L125 PetriNetUnfolderBase]: For 9254/9269 co-relation queries the response was YES. [2025-03-17 14:15:14,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15241 conditions, 5542 events. 3083/5542 cut-off events. For 9254/9269 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 35849 event pairs, 1918 based on Foata normal form. 0/5321 useless extension candidates. Maximal degree in co-relation 14021. Up to 4301 conditions per place. [2025-03-17 14:15:14,099 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 98 selfloop transitions, 10 changer transitions 0/138 dead transitions. [2025-03-17 14:15:14,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 138 transitions, 844 flow [2025-03-17 14:15:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:14,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-03-17 14:15:14,101 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5573333333333333 [2025-03-17 14:15:14,101 INFO L175 Difference]: Start difference. First operand has 130 places, 117 transitions, 526 flow. Second operand 3 states and 209 transitions. [2025-03-17 14:15:14,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 138 transitions, 844 flow [2025-03-17 14:15:14,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 817 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 14:15:14,113 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 623 flow [2025-03-17 14:15:14,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=623, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2025-03-17 14:15:14,114 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 10 predicate places. [2025-03-17 14:15:14,114 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 623 flow [2025-03-17 14:15:14,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:14,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:14,114 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:14,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 14:15:14,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:14,315 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:14,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:14,315 INFO L85 PathProgramCache]: Analyzing trace with hash -981535122, now seen corresponding path program 1 times [2025-03-17 14:15:14,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:14,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436247982] [2025-03-17 14:15:14,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:14,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:14,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:14,317 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:14,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:15:14,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 14:15:14,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 14:15:14,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:14,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:14,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 14:15:14,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:14,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 14:15:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 14:15:14,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 14:15:14,426 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:14,426 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:14,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-17 14:15:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:14,465 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:14,465 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:14,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436247982] [2025-03-17 14:15:14,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436247982] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:14,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:14,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:14,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638073003] [2025-03-17 14:15:14,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:14,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:14,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:14,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:14,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:14,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 125 [2025-03-17 14:15:14,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2025-03-17 14:15:14,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:14,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 125 [2025-03-17 14:15:14,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:15,234 INFO L124 PetriNetUnfolderBase]: 3441/6147 cut-off events. [2025-03-17 14:15:15,234 INFO L125 PetriNetUnfolderBase]: For 12125/12140 co-relation queries the response was YES. [2025-03-17 14:15:15,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18653 conditions, 6147 events. 3441/6147 cut-off events. For 12125/12140 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 40058 event pairs, 2169 based on Foata normal form. 0/5998 useless extension candidates. Maximal degree in co-relation 17358. Up to 4733 conditions per place. [2025-03-17 14:15:15,258 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 101 selfloop transitions, 17 changer transitions 0/149 dead transitions. [2025-03-17 14:15:15,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 149 transitions, 1005 flow [2025-03-17 14:15:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2025-03-17 14:15:15,260 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.56 [2025-03-17 14:15:15,260 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 623 flow. Second operand 3 states and 210 transitions. [2025-03-17 14:15:15,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 149 transitions, 1005 flow [2025-03-17 14:15:15,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 149 transitions, 975 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:15,287 INFO L231 Difference]: Finished difference. Result has 131 places, 137 transitions, 795 flow [2025-03-17 14:15:15,287 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=795, PETRI_PLACES=131, PETRI_TRANSITIONS=137} [2025-03-17 14:15:15,287 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 12 predicate places. [2025-03-17 14:15:15,288 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 137 transitions, 795 flow [2025-03-17 14:15:15,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2025-03-17 14:15:15,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:15,288 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:15,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 14:15:15,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:15,492 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:15,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:15,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1479397263, now seen corresponding path program 1 times [2025-03-17 14:15:15,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:15,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547096086] [2025-03-17 14:15:15,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:15,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:15,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:15,494 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:15,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:15:15,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 14:15:15,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 14:15:15,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:15,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:15,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 14:15:15,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:15,598 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:15,598 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:15,599 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 14:15:15,602 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 [2025-03-17 14:15:15,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 14:15:15,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2025-03-17 14:15:15,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 14:15:15,666 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 [2025-03-17 14:15:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:15,674 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:15,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 14:15:15,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547096086] [2025-03-17 14:15:15,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547096086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:15,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:15,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:15:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334011496] [2025-03-17 14:15:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:15,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:15:15,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 14:15:15,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:15:15,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:15:15,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 125 [2025-03-17 14:15:15,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 137 transitions, 795 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2025-03-17 14:15:15,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:15,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 125 [2025-03-17 14:15:15,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:16,961 INFO L124 PetriNetUnfolderBase]: 3875/7073 cut-off events. [2025-03-17 14:15:16,961 INFO L125 PetriNetUnfolderBase]: For 17403/17411 co-relation queries the response was YES. [2025-03-17 14:15:16,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22612 conditions, 7073 events. 3875/7073 cut-off events. For 17403/17411 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 48800 event pairs, 2219 based on Foata normal form. 121/7042 useless extension candidates. Maximal degree in co-relation 21059. Up to 5476 conditions per place. [2025-03-17 14:15:16,984 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 138 selfloop transitions, 18 changer transitions 0/187 dead transitions. [2025-03-17 14:15:16,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 187 transitions, 1355 flow [2025-03-17 14:15:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:15:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:15:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 327 transitions. [2025-03-17 14:15:16,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5232 [2025-03-17 14:15:16,985 INFO L175 Difference]: Start difference. First operand has 131 places, 137 transitions, 795 flow. Second operand 5 states and 327 transitions. [2025-03-17 14:15:16,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 187 transitions, 1355 flow [2025-03-17 14:15:17,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 187 transitions, 1321 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:17,029 INFO L231 Difference]: Finished difference. Result has 136 places, 151 transitions, 955 flow [2025-03-17 14:15:17,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=955, PETRI_PLACES=136, PETRI_TRANSITIONS=151} [2025-03-17 14:15:17,030 INFO L279 CegarLoopForPetriNet]: 119 programPoint places, 17 predicate places. [2025-03-17 14:15:17,030 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 151 transitions, 955 flow [2025-03-17 14:15:17,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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) [2025-03-17 14:15:17,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:17,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:17,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 14:15:17,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:17,231 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-17 14:15:17,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:17,231 INFO L85 PathProgramCache]: Analyzing trace with hash -703104674, now seen corresponding path program 1 times [2025-03-17 14:15:17,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 14:15:17,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041858147] [2025-03-17 14:15:17,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:17,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:17,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:17,235 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:17,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:15:17,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 14:15:18,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 14:15:18,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:18,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 14:15:18,643 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 14:15:18,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 14:15:21,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 14:15:21,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:21,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 14:15:21,799 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-17 14:15:21,799 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 14:15:21,800 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2025-03-17 14:15:21,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (28 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (25 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (22 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2025-03-17 14:15:21,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2025-03-17 14:15:21,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2025-03-17 14:15:21,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2025-03-17 14:15:21,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2025-03-17 14:15:21,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 14:15:22,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:22,006 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:22,026 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 14:15:22,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:15:22,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:15:22 BasicIcfg [2025-03-17 14:15:22,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:15:22,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:15:22,031 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:15:22,031 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:15:22,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:14:59" (3/4) ... [2025-03-17 14:15:22,033 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 14:15:22,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:15:22,034 INFO L158 Benchmark]: Toolchain (without parser) took 23889.14ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 89.1MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 471.4MB. Max. memory is 16.1GB. [2025-03-17 14:15:22,034 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:15:22,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.32ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 47.1MB in the end (delta: 41.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-17 14:15:22,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.12ms. Allocated memory is still 117.4MB. Free memory was 47.1MB in the beginning and 44.5MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:15:22,035 INFO L158 Benchmark]: Boogie Preprocessor took 55.20ms. Allocated memory is still 117.4MB. Free memory was 44.5MB in the beginning and 40.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:15:22,035 INFO L158 Benchmark]: IcfgBuilder took 843.85ms. Allocated memory is still 117.4MB. Free memory was 40.3MB in the beginning and 64.3MB in the end (delta: -24.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2025-03-17 14:15:22,035 INFO L158 Benchmark]: TraceAbstraction took 22339.31ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 64.3MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 438.0MB. Max. memory is 16.1GB. [2025-03-17 14:15:22,035 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 101.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:15:22,036 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.32ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 47.1MB in the end (delta: 41.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.12ms. Allocated memory is still 117.4MB. Free memory was 47.1MB in the beginning and 44.5MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.20ms. Allocated memory is still 117.4MB. Free memory was 44.5MB in the beginning and 40.3MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 843.85ms. Allocated memory is still 117.4MB. Free memory was 40.3MB in the beginning and 64.3MB in the end (delta: -24.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 22339.31ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 64.3MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 438.0MB. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 101.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={1025:24}, \old(data)={1025:0}, d={1025:24}, data={1025:0}, res=0, t1=31, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={1025:24}, \old(data)={1025:0}, arg={1025:24}, d={1025:24}, data={1025:0}, data={1025:0}, dev={1025:24}, res=0, t1=31, t2=32] [L3933] 0 data->shared.a = 3 VAL [\old(arg)={1025:24}, arg={1025:24}, data={1025:0}, dev={1025:24}, t1=31, t2=32] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={1025:24}, arg={1025:24}, data={1025:0}, dev={1025:24}, t1=31, t2=32] [L3936] 0 data->shared.b = 3 VAL [\old(arg)={1025:24}, arg={1025:24}, data={1025:0}, dev={1025:24}, t1=31, t2=32] [L3939] EXPR 0 data->shared.a [L3939] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_3-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_3-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={1025:24}, arg={1025:24}, data={1025:0}, dev={1025:24}, t1=31, t2=32] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 132 locations, 143 edges, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1580 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1246 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3286 IncrementalHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 90 mSDtfsCounter, 3286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred in iteration=12, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 703 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1107 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 14:15:22,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample