./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 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-3_1-container_of-global.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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:44,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:44,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:58:44,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:44,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:44,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:44,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:44,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:44,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:44,349 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:44,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:44,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:44,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:44,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:44,350 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:44,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:44,350 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:44,351 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:44,352 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:44,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:44,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:44,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:44,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:44,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:44,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:44,353 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 -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2025-03-04 09:58:44,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:44,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:44,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:44,592 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:44,592 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:44,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2025-03-04 09:58:45,724 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c558352d1/a42711992f144736bb99c5c3caf2a1af/FLAG316dbbbd1 [2025-03-04 09:58:46,075 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:46,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2025-03-04 09:58:46,114 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c558352d1/a42711992f144736bb99c5c3caf2a1af/FLAG316dbbbd1 [2025-03-04 09:58:46,305 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c558352d1/a42711992f144736bb99c5c3caf2a1af [2025-03-04 09:58:46,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:46,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:46,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:46,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:46,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:46,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:46" (1/1) ... [2025-03-04 09:58:46,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c73d713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:46, skipping insertion in model container [2025-03-04 09:58:46,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:46" (1/1) ... [2025-03-04 09:58:46,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:46,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:46,674 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) [2025-03-04 09:58:46,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76d2f546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:46, skipping insertion in model container [2025-03-04 09:58:46,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:46,675 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 09:58:46,677 INFO L158 Benchmark]: Toolchain (without parser) took 366.87ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 91.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:46,677 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:46,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.73ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 91.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:46,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.73ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 91.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3902]: 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-3_1-container_of-global.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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:48,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:48,414 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-04 09:58:48,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:48,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:48,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:48,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:48,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:48,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:48,444 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:48,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:48,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:48,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:48,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:48,445 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:48,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:48,446 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:48,447 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:48,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:48,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:48,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:48,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:48,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:48,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:48,448 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 09:58:48,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 09:58:48,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:48,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:48,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:48,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:48,449 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 -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2025-03-04 09:58:48,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:48,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:48,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:48,728 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:48,728 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:48,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2025-03-04 09:58:49,942 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8bb77fd/c83c60215a7b4a34aa9adab1c91f9166/FLAG250f02c5c [2025-03-04 09:58:50,177 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:50,179 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2025-03-04 09:58:50,213 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8bb77fd/c83c60215a7b4a34aa9adab1c91f9166/FLAG250f02c5c [2025-03-04 09:58:50,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b8bb77fd/c83c60215a7b4a34aa9adab1c91f9166 [2025-03-04 09:58:50,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:50,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:50,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:50,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:50,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:50,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a61341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50, skipping insertion in model container [2025-03-04 09:58:50,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:50,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:50,620 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 09:58:50,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:50,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:50,714 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:50,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:50,825 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:50,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50 WrapperNode [2025-03-04 09:58:50,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:50,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:50,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:50,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:50,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,876 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2025-03-04 09:58:50,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:50,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:50,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:50,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:50,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,904 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 2, 13]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2025-03-04 09:58:50,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:50,931 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:50,931 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:50,931 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:50,932 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (1/1) ... [2025-03-04 09:58:50,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:50,968 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) [2025-03-04 09:58:50,970 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 [2025-03-04 09:58:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 09:58:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 09:58:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-04 09:58:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-04 09:58:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-04 09:58:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 09:58:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 09:58:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:50,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:50,992 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:51,246 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:51,247 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:51,630 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:51,631 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:51,735 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:51,735 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:51,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:51 BoogieIcfgContainer [2025-03-04 09:58:51,736 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:51,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:51,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:51,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:51,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:50" (1/3) ... [2025-03-04 09:58:51,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f72aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:51, skipping insertion in model container [2025-03-04 09:58:51,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:50" (2/3) ... [2025-03-04 09:58:51,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f72aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:51, skipping insertion in model container [2025-03-04 09:58:51,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:51" (3/3) ... [2025-03-04 09:58:51,743 INFO L128 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2025-03-04 09:58:51,753 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:51,755 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-3_1-container_of-global.i that has 2 procedures, 103 locations, 1 initial locations, 0 loop locations, and 37 error locations. [2025-03-04 09:58:51,755 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:51,825 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 09:58:51,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 132 transitions, 278 flow [2025-03-04 09:58:51,901 INFO L124 PetriNetUnfolderBase]: 18/165 cut-off events. [2025-03-04 09:58:51,904 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 09:58:51,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 165 events. 18/165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 530 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2025-03-04 09:58:51,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 132 transitions, 278 flow [2025-03-04 09:58:51,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 130 transitions, 272 flow [2025-03-04 09:58:51,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:51,934 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;@1179cd6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:51,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2025-03-04 09:58:51,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:51,948 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-03-04 09:58:51,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:51,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:51,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 09:58:51,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:51,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:51,954 INFO L85 PathProgramCache]: Analyzing trace with hash 503713, now seen corresponding path program 1 times [2025-03-04 09:58:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:51,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627169798] [2025-03-04 09:58:51,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:51,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:51,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:51,965 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) [2025-03-04 09:58:51,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 09:58:52,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:58:52,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:58:52,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:52,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:52,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 09:58:52,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:52,121 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 [2025-03-04 09:58:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:52,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:52,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:52,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627169798] [2025-03-04 09:58:52,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627169798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:52,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:52,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798308706] [2025-03-04 09:58:52,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:52,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:52,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:52,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:52,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:52,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2025-03-04 09:58:52,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2025-03-04 09:58:52,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:52,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2025-03-04 09:58:52,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:52,780 INFO L124 PetriNetUnfolderBase]: 707/2028 cut-off events. [2025-03-04 09:58:52,781 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-03-04 09:58:52,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3244 conditions, 2028 events. 707/2028 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15899 event pairs, 95 based on Foata normal form. 156/1875 useless extension candidates. Maximal degree in co-relation 3071. Up to 1002 conditions per place. [2025-03-04 09:58:52,796 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 54 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2025-03-04 09:58:52,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 118 transitions, 360 flow [2025-03-04 09:58:52,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2025-03-04 09:58:52,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-04 09:58:52,811 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 272 flow. Second operand 3 states and 264 transitions. [2025-03-04 09:58:52,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 118 transitions, 360 flow [2025-03-04 09:58:52,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:52,818 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2025-03-04 09:58:52,820 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2025-03-04 09:58:52,823 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2025-03-04 09:58:52,823 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2025-03-04 09:58:52,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2025-03-04 09:58:52,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:52,823 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 09:58:52,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 09:58:53,028 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 [2025-03-04 09:58:53,028 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:53,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:53,029 INFO L85 PathProgramCache]: Analyzing trace with hash 503714, now seen corresponding path program 1 times [2025-03-04 09:58:53,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:53,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305328105] [2025-03-04 09:58:53,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:53,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:53,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:53,032 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) [2025-03-04 09:58:53,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 09:58:53,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:58:53,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:58:53,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:53,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:53,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:58:53,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:53,156 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 [2025-03-04 09:58:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:53,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:53,166 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:53,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305328105] [2025-03-04 09:58:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305328105] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:53,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:53,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:53,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527537231] [2025-03-04 09:58:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:53,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:53,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:53,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:53,306 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2025-03-04 09:58:53,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:53,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:53,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2025-03-04 09:58:53,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:53,604 INFO L124 PetriNetUnfolderBase]: 707/2024 cut-off events. [2025-03-04 09:58:53,604 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-03-04 09:58:53,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 2024 events. 707/2024 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15876 event pairs, 95 based on Foata normal form. 2/1717 useless extension candidates. Maximal degree in co-relation 488. Up to 1002 conditions per place. [2025-03-04 09:58:53,615 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 52 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2025-03-04 09:58:53,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 114 transitions, 344 flow [2025-03-04 09:58:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2025-03-04 09:58:53,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2025-03-04 09:58:53,622 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 256 transitions. [2025-03-04 09:58:53,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 114 transitions, 344 flow [2025-03-04 09:58:53,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 114 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:53,625 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 216 flow [2025-03-04 09:58:53,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2025-03-04 09:58:53,627 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2025-03-04 09:58:53,627 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 216 flow [2025-03-04 09:58:53,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:53,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:53,627 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 09:58:53,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:53,828 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 [2025-03-04 09:58:53,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:53,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash 15614770, now seen corresponding path program 1 times [2025-03-04 09:58:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:53,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900919401] [2025-03-04 09:58:53,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:53,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:53,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:53,834 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) [2025-03-04 09:58:53,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 09:58:53,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 09:58:53,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 09:58:53,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:53,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:53,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 09:58:53,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:53,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:53,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:53,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900919401] [2025-03-04 09:58:53,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900919401] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:53,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:53,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:53,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142937869] [2025-03-04 09:58:53,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:53,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:53,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:53,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:53,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:54,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2025-03-04 09:58:54,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2025-03-04 09:58:54,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:54,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2025-03-04 09:58:54,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:54,324 INFO L124 PetriNetUnfolderBase]: 767/1834 cut-off events. [2025-03-04 09:58:54,324 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-03-04 09:58:54,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3169 conditions, 1834 events. 767/1834 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 12690 event pairs, 705 based on Foata normal form. 0/1528 useless extension candidates. Maximal degree in co-relation 951. Up to 1189 conditions per place. [2025-03-04 09:58:54,331 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 52 selfloop transitions, 3 changer transitions 2/115 dead transitions. [2025-03-04 09:58:54,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 115 transitions, 350 flow [2025-03-04 09:58:54,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:54,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:54,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2025-03-04 09:58:54,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-04 09:58:54,333 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 216 flow. Second operand 3 states and 264 transitions. [2025-03-04 09:58:54,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 115 transitions, 350 flow [2025-03-04 09:58:54,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 115 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:54,336 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 221 flow [2025-03-04 09:58:54,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2025-03-04 09:58:54,337 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -15 predicate places. [2025-03-04 09:58:54,337 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 221 flow [2025-03-04 09:58:54,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2025-03-04 09:58:54,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:54,338 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:54,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 09:58:54,538 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 [2025-03-04 09:58:54,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:54,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:54,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1246422714, now seen corresponding path program 1 times [2025-03-04 09:58:54,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:54,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664654388] [2025-03-04 09:58:54,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:54,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:54,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:54,542 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) [2025-03-04 09:58:54,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 09:58:54,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 09:58:54,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 09:58:54,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:54,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:54,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 09:58:54,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:54,650 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:58:54,651 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:58:54,651 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:58:54,657 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 [2025-03-04 09:58:54,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:58:54,705 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 88 treesize of output 63 [2025-03-04 09:58:54,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:58:54,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 49 [2025-03-04 09:58:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:54,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:54,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:54,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664654388] [2025-03-04 09:58:54,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664654388] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:54,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:54,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:54,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573303549] [2025-03-04 09:58:54,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:54,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:54,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:54,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:54,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:54,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2025-03-04 09:58:54,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 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) [2025-03-04 09:58:54,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:54,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2025-03-04 09:58:54,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:55,521 INFO L124 PetriNetUnfolderBase]: 1153/2649 cut-off events. [2025-03-04 09:58:55,522 INFO L125 PetriNetUnfolderBase]: For 153/154 co-relation queries the response was YES. [2025-03-04 09:58:55,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4642 conditions, 2649 events. 1153/2649 cut-off events. For 153/154 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 19165 event pairs, 684 based on Foata normal form. 1/2326 useless extension candidates. Maximal degree in co-relation 4313. Up to 1845 conditions per place. [2025-03-04 09:58:55,534 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 52 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2025-03-04 09:58:55,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 110 transitions, 354 flow [2025-03-04 09:58:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2025-03-04 09:58:55,536 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2025-03-04 09:58:55,536 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 221 flow. Second operand 5 states and 380 transitions. [2025-03-04 09:58:55,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 110 transitions, 354 flow [2025-03-04 09:58:55,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 343 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:55,540 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 236 flow [2025-03-04 09:58:55,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2025-03-04 09:58:55,541 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2025-03-04 09:58:55,541 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 236 flow [2025-03-04 09:58:55,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 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) [2025-03-04 09:58:55,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:55,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:55,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 09:58:55,741 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 [2025-03-04 09:58:55,742 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:55,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:55,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2141410111, now seen corresponding path program 1 times [2025-03-04 09:58:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:55,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104885709] [2025-03-04 09:58:55,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:55,746 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) [2025-03-04 09:58:55,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 09:58:55,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 09:58:55,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 09:58:55,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:55,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:55,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 09:58:55,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:55,843 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:58:55,844 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:58:55,844 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:58:55,846 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 [2025-03-04 09:58:55,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:58:55,965 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 117 treesize of output 45 [2025-03-04 09:58:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:55,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:55,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:55,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104885709] [2025-03-04 09:58:55,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104885709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:55,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:55,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:55,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928980490] [2025-03-04 09:58:55,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:55,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:55,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:55,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:55,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:56,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2025-03-04 09:58:56,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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) [2025-03-04 09:58:56,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:56,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2025-03-04 09:58:56,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:56,720 INFO L124 PetriNetUnfolderBase]: 1321/2937 cut-off events. [2025-03-04 09:58:56,720 INFO L125 PetriNetUnfolderBase]: For 242/248 co-relation queries the response was YES. [2025-03-04 09:58:56,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5423 conditions, 2937 events. 1321/2937 cut-off events. For 242/248 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 20965 event pairs, 796 based on Foata normal form. 6/2502 useless extension candidates. Maximal degree in co-relation 2255. Up to 2115 conditions per place. [2025-03-04 09:58:56,733 INFO L140 encePairwiseOnDemand]: 122/132 looper letters, 54 selfloop transitions, 9 changer transitions 0/107 dead transitions. [2025-03-04 09:58:56,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 371 flow [2025-03-04 09:58:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 359 transitions. [2025-03-04 09:58:56,736 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543939393939394 [2025-03-04 09:58:56,736 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 236 flow. Second operand 5 states and 359 transitions. [2025-03-04 09:58:56,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 371 flow [2025-03-04 09:58:56,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 107 transitions, 363 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:56,738 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 240 flow [2025-03-04 09:58:56,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2025-03-04 09:58:56,741 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -18 predicate places. [2025-03-04 09:58:56,741 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 240 flow [2025-03-04 09:58:56,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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) [2025-03-04 09:58:56,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:56,741 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:56,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:56,942 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 [2025-03-04 09:58:56,942 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:56,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:56,943 INFO L85 PathProgramCache]: Analyzing trace with hash 966786429, now seen corresponding path program 1 times [2025-03-04 09:58:56,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:56,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023845288] [2025-03-04 09:58:56,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:56,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:56,945 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) [2025-03-04 09:58:56,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 09:58:57,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:57,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:57,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:57,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:57,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:58:57,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:57,040 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 [2025-03-04 09:58:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:57,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:57,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:57,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023845288] [2025-03-04 09:58:57,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023845288] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:57,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:57,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:57,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714510572] [2025-03-04 09:58:57,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:57,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:57,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:57,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:57,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 132 [2025-03-04 09:58:57,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2025-03-04 09:58:57,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:57,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 132 [2025-03-04 09:58:57,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:57,412 INFO L124 PetriNetUnfolderBase]: 956/2224 cut-off events. [2025-03-04 09:58:57,412 INFO L125 PetriNetUnfolderBase]: For 68/76 co-relation queries the response was YES. [2025-03-04 09:58:57,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3952 conditions, 2224 events. 956/2224 cut-off events. For 68/76 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 15492 event pairs, 738 based on Foata normal form. 0/2027 useless extension candidates. Maximal degree in co-relation 1648. Up to 1362 conditions per place. [2025-03-04 09:58:57,422 INFO L140 encePairwiseOnDemand]: 123/132 looper letters, 52 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2025-03-04 09:58:57,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 105 transitions, 362 flow [2025-03-04 09:58:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2025-03-04 09:58:57,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2025-03-04 09:58:57,423 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 240 flow. Second operand 3 states and 246 transitions. [2025-03-04 09:58:57,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 105 transitions, 362 flow [2025-03-04 09:58:57,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 346 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:57,429 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 222 flow [2025-03-04 09:58:57,430 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2025-03-04 09:58:57,430 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -25 predicate places. [2025-03-04 09:58:57,430 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 222 flow [2025-03-04 09:58:57,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2025-03-04 09:58:57,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:57,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:57,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:57,635 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 [2025-03-04 09:58:57,635 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:57,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash 966786430, now seen corresponding path program 1 times [2025-03-04 09:58:57,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:57,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706697747] [2025-03-04 09:58:57,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:57,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:57,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:57,639 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) [2025-03-04 09:58:57,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 09:58:57,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:57,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:57,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:57,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:57,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:58:57,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:57,734 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 [2025-03-04 09:58:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:57,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:57,793 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:57,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706697747] [2025-03-04 09:58:57,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706697747] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:57,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:57,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:57,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657088090] [2025-03-04 09:58:57,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:57,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:57,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:57,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:57,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:57,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 132 [2025-03-04 09:58:57,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2025-03-04 09:58:57,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:57,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 132 [2025-03-04 09:58:57,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:58,190 INFO L124 PetriNetUnfolderBase]: 816/1941 cut-off events. [2025-03-04 09:58:58,190 INFO L125 PetriNetUnfolderBase]: For 87/95 co-relation queries the response was YES. [2025-03-04 09:58:58,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1941 events. 816/1941 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13248 event pairs, 531 based on Foata normal form. 88/1843 useless extension candidates. Maximal degree in co-relation 2822. Up to 992 conditions per place. [2025-03-04 09:58:58,198 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 63 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2025-03-04 09:58:58,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 390 flow [2025-03-04 09:58:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2025-03-04 09:58:58,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2025-03-04 09:58:58,200 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 222 flow. Second operand 3 states and 261 transitions. [2025-03-04 09:58:58,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 390 flow [2025-03-04 09:58:58,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:58,202 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 235 flow [2025-03-04 09:58:58,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2025-03-04 09:58:58,202 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2025-03-04 09:58:58,202 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 235 flow [2025-03-04 09:58:58,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2025-03-04 09:58:58,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:58,203 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:58,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 09:58:58,403 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 [2025-03-04 09:58:58,406 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:58,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:58,407 INFO L85 PathProgramCache]: Analyzing trace with hash 35285407, now seen corresponding path program 1 times [2025-03-04 09:58:58,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:58,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240117972] [2025-03-04 09:58:58,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:58,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:58,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:58,409 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) [2025-03-04 09:58:58,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 09:58:58,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 09:58:58,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 09:58:58,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:58,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:58,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 09:58:58,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:58,515 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 [2025-03-04 09:58:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:58,599 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:58,599 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:58,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240117972] [2025-03-04 09:58:58,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240117972] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:58,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:58,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:58,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39501765] [2025-03-04 09:58:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:58,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:58,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:58,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:58,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:58,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2025-03-04 09:58:58,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 235 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 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) [2025-03-04 09:58:58,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:58,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2025-03-04 09:58:58,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:59,263 INFO L124 PetriNetUnfolderBase]: 840/2065 cut-off events. [2025-03-04 09:58:59,263 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2025-03-04 09:58:59,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3790 conditions, 2065 events. 840/2065 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14370 event pairs, 129 based on Foata normal form. 145/2134 useless extension candidates. Maximal degree in co-relation 2614. Up to 948 conditions per place. [2025-03-04 09:58:59,269 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 88 selfloop transitions, 11 changer transitions 2/150 dead transitions. [2025-03-04 09:58:59,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 150 transitions, 564 flow [2025-03-04 09:58:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:58:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:58:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 545 transitions. [2025-03-04 09:58:59,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5898268398268398 [2025-03-04 09:58:59,271 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 235 flow. Second operand 7 states and 545 transitions. [2025-03-04 09:58:59,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 150 transitions, 564 flow [2025-03-04 09:58:59,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 150 transitions, 557 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:59,273 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 295 flow [2025-03-04 09:58:59,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=295, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2025-03-04 09:58:59,274 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -17 predicate places. [2025-03-04 09:58:59,274 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 295 flow [2025-03-04 09:58:59,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 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) [2025-03-04 09:58:59,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:59,274 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:59,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 09:58:59,475 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 [2025-03-04 09:58:59,475 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:58:59,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash 35285406, now seen corresponding path program 1 times [2025-03-04 09:58:59,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:59,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226227756] [2025-03-04 09:58:59,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:59,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:59,478 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) [2025-03-04 09:58:59,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 09:58:59,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 09:58:59,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 09:58:59,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:59,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:59,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:58:59,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:59,599 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:59,599 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:59,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226227756] [2025-03-04 09:58:59,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226227756] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:59,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:59,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640103383] [2025-03-04 09:58:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:59,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:59,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:59,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:59,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:59,813 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2025-03-04 09:58:59,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:59,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:59,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2025-03-04 09:58:59,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:00,265 INFO L124 PetriNetUnfolderBase]: 1177/2657 cut-off events. [2025-03-04 09:59:00,265 INFO L125 PetriNetUnfolderBase]: For 671/674 co-relation queries the response was YES. [2025-03-04 09:59:00,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5222 conditions, 2657 events. 1177/2657 cut-off events. For 671/674 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 18643 event pairs, 139 based on Foata normal form. 64/2602 useless extension candidates. Maximal degree in co-relation 3343. Up to 1078 conditions per place. [2025-03-04 09:59:00,273 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 102 selfloop transitions, 16 changer transitions 0/162 dead transitions. [2025-03-04 09:59:00,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 162 transitions, 663 flow [2025-03-04 09:59:00,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:59:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:59:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 593 transitions. [2025-03-04 09:59:00,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5615530303030303 [2025-03-04 09:59:00,275 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 295 flow. Second operand 8 states and 593 transitions. [2025-03-04 09:59:00,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 162 transitions, 663 flow [2025-03-04 09:59:00,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 162 transitions, 663 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 09:59:00,281 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 399 flow [2025-03-04 09:59:00,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=399, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2025-03-04 09:59:00,281 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -5 predicate places. [2025-03-04 09:59:00,281 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 399 flow [2025-03-04 09:59:00,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:00,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:00,282 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:00,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:00,482 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 [2025-03-04 09:59:00,482 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:00,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash -536890047, now seen corresponding path program 1 times [2025-03-04 09:59:00,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:00,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917689021] [2025-03-04 09:59:00,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:00,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:00,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:00,485 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) [2025-03-04 09:59:00,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 09:59:00,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:59:00,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:59:00,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:00,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:00,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:59:00,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:00,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:00,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:00,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917689021] [2025-03-04 09:59:00,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917689021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:00,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:00,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:00,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96225350] [2025-03-04 09:59:00,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:00,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:00,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:00,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:00,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:00,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2025-03-04 09:59:00,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 399 flow. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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) [2025-03-04 09:59:00,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:00,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2025-03-04 09:59:00,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:01,413 INFO L124 PetriNetUnfolderBase]: 1336/3053 cut-off events. [2025-03-04 09:59:01,413 INFO L125 PetriNetUnfolderBase]: For 2640/2790 co-relation queries the response was YES. [2025-03-04 09:59:01,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6731 conditions, 3053 events. 1336/3053 cut-off events. For 2640/2790 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 22199 event pairs, 350 based on Foata normal form. 97/3083 useless extension candidates. Maximal degree in co-relation 5904. Up to 1093 conditions per place. [2025-03-04 09:59:01,422 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 108 selfloop transitions, 20 changer transitions 0/174 dead transitions. [2025-03-04 09:59:01,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 174 transitions, 878 flow [2025-03-04 09:59:01,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:59:01,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:59:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 593 transitions. [2025-03-04 09:59:01,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5615530303030303 [2025-03-04 09:59:01,424 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 399 flow. Second operand 8 states and 593 transitions. [2025-03-04 09:59:01,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 174 transitions, 878 flow [2025-03-04 09:59:01,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 174 transitions, 863 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:59:01,428 INFO L231 Difference]: Finished difference. Result has 125 places, 118 transitions, 537 flow [2025-03-04 09:59:01,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=537, PETRI_PLACES=125, PETRI_TRANSITIONS=118} [2025-03-04 09:59:01,429 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2025-03-04 09:59:01,429 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 118 transitions, 537 flow [2025-03-04 09:59:01,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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) [2025-03-04 09:59:01,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:01,429 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:01,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 09:59:01,633 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 [2025-03-04 09:59:01,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:01,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -536890046, now seen corresponding path program 1 times [2025-03-04 09:59:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:01,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803362915] [2025-03-04 09:59:01,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:01,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:01,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:01,636 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) [2025-03-04 09:59:01,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 09:59:01,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:59:01,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:59:01,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:01,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:01,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 09:59:01,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:01,743 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 [2025-03-04 09:59:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:01,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:01,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:01,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803362915] [2025-03-04 09:59:01,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803362915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:01,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:01,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:01,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369814344] [2025-03-04 09:59:01,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:01,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:01,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:01,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:01,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:02,120 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 132 [2025-03-04 09:59:02,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 118 transitions, 537 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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) [2025-03-04 09:59:02,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:02,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 132 [2025-03-04 09:59:02,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:02,536 INFO L124 PetriNetUnfolderBase]: 1002/2492 cut-off events. [2025-03-04 09:59:02,536 INFO L125 PetriNetUnfolderBase]: For 3224/3432 co-relation queries the response was YES. [2025-03-04 09:59:02,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5976 conditions, 2492 events. 1002/2492 cut-off events. For 3224/3432 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 18348 event pairs, 170 based on Foata normal form. 328/2779 useless extension candidates. Maximal degree in co-relation 5366. Up to 1228 conditions per place. [2025-03-04 09:59:02,545 INFO L140 encePairwiseOnDemand]: 124/132 looper letters, 93 selfloop transitions, 17 changer transitions 1/164 dead transitions. [2025-03-04 09:59:02,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 164 transitions, 895 flow [2025-03-04 09:59:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:02,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 542 transitions. [2025-03-04 09:59:02,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5865800865800865 [2025-03-04 09:59:02,548 INFO L175 Difference]: Start difference. First operand has 125 places, 118 transitions, 537 flow. Second operand 7 states and 542 transitions. [2025-03-04 09:59:02,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 164 transitions, 895 flow [2025-03-04 09:59:02,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 164 transitions, 892 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:59:02,556 INFO L231 Difference]: Finished difference. Result has 133 places, 121 transitions, 620 flow [2025-03-04 09:59:02,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=620, PETRI_PLACES=133, PETRI_TRANSITIONS=121} [2025-03-04 09:59:02,557 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 11 predicate places. [2025-03-04 09:59:02,557 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 121 transitions, 620 flow [2025-03-04 09:59:02,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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) [2025-03-04 09:59:02,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:02,558 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:02,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 09:59:02,762 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 [2025-03-04 09:59:02,762 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:02,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:02,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1709682445, now seen corresponding path program 1 times [2025-03-04 09:59:02,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:02,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918300994] [2025-03-04 09:59:02,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:02,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:02,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:02,765 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) [2025-03-04 09:59:02,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 09:59:02,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:59:02,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:59:02,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:02,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:02,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 09:59:02,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:02,890 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,891 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,891 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,892 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 [2025-03-04 09:59:02,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:02,938 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 [2025-03-04 09:59:02,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:02,974 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 [2025-03-04 09:59:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:02,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:02,983 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:02,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918300994] [2025-03-04 09:59:02,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918300994] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:02,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:02,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782559655] [2025-03-04 09:59:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:02,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:02,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:02,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:03,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2025-03-04 09:59:03,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 121 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2025-03-04 09:59:03,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:03,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2025-03-04 09:59:03,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:04,539 INFO L124 PetriNetUnfolderBase]: 1987/3902 cut-off events. [2025-03-04 09:59:04,539 INFO L125 PetriNetUnfolderBase]: For 6897/7191 co-relation queries the response was YES. [2025-03-04 09:59:04,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 3902 events. 1987/3902 cut-off events. For 6897/7191 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 26668 event pairs, 607 based on Foata normal form. 35/3761 useless extension candidates. Maximal degree in co-relation 9811. Up to 1638 conditions per place. [2025-03-04 09:59:04,551 INFO L140 encePairwiseOnDemand]: 108/132 looper letters, 107 selfloop transitions, 43 changer transitions 0/191 dead transitions. [2025-03-04 09:59:04,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 191 transitions, 1219 flow [2025-03-04 09:59:04,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 536 transitions. [2025-03-04 09:59:04,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5800865800865801 [2025-03-04 09:59:04,553 INFO L175 Difference]: Start difference. First operand has 133 places, 121 transitions, 620 flow. Second operand 7 states and 536 transitions. [2025-03-04 09:59:04,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 191 transitions, 1219 flow [2025-03-04 09:59:04,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 191 transitions, 1200 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:04,563 INFO L231 Difference]: Finished difference. Result has 140 places, 141 transitions, 883 flow [2025-03-04 09:59:04,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=883, PETRI_PLACES=140, PETRI_TRANSITIONS=141} [2025-03-04 09:59:04,564 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2025-03-04 09:59:04,565 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 141 transitions, 883 flow [2025-03-04 09:59:04,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2025-03-04 09:59:04,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:04,566 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:04,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:04,770 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 [2025-03-04 09:59:04,770 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:04,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:04,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2074470987, now seen corresponding path program 1 times [2025-03-04 09:59:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:04,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381435086] [2025-03-04 09:59:04,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:04,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:04,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:04,776 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) [2025-03-04 09:59:04,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 09:59:04,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:59:04,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:59:04,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:04,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:04,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 09:59:04,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:04,888 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 [2025-03-04 09:59:05,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:05,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 09:59:05,030 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:05,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 09:59:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:05,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:05,052 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:05,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381435086] [2025-03-04 09:59:05,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381435086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:05,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:05,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:59:05,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784966075] [2025-03-04 09:59:05,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:05,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:59:05,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:05,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:59:05,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:59:05,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 132 [2025-03-04 09:59:05,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 141 transitions, 883 flow. Second operand has 7 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 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) [2025-03-04 09:59:05,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:05,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 132 [2025-03-04 09:59:05,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:06,427 INFO L124 PetriNetUnfolderBase]: 2127/4479 cut-off events. [2025-03-04 09:59:06,427 INFO L125 PetriNetUnfolderBase]: For 11820/12045 co-relation queries the response was YES. [2025-03-04 09:59:06,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14559 conditions, 4479 events. 2127/4479 cut-off events. For 11820/12045 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 33863 event pairs, 393 based on Foata normal form. 72/4480 useless extension candidates. Maximal degree in co-relation 13022. Up to 1804 conditions per place. [2025-03-04 09:59:06,445 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 144 selfloop transitions, 24 changer transitions 0/216 dead transitions. [2025-03-04 09:59:06,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 216 transitions, 1558 flow [2025-03-04 09:59:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:59:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:59:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 602 transitions. [2025-03-04 09:59:06,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5067340067340067 [2025-03-04 09:59:06,447 INFO L175 Difference]: Start difference. First operand has 140 places, 141 transitions, 883 flow. Second operand 9 states and 602 transitions. [2025-03-04 09:59:06,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 216 transitions, 1558 flow [2025-03-04 09:59:06,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 216 transitions, 1533 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:06,470 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 906 flow [2025-03-04 09:59:06,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=906, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2025-03-04 09:59:06,471 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 22 predicate places. [2025-03-04 09:59:06,471 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 906 flow [2025-03-04 09:59:06,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 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) [2025-03-04 09:59:06,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:06,472 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:06,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-04 09:59:06,673 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 [2025-03-04 09:59:06,673 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:06,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1314371541, now seen corresponding path program 1 times [2025-03-04 09:59:06,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:06,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785167483] [2025-03-04 09:59:06,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:06,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:06,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:06,675 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:06,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 09:59:06,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:59:06,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:59:06,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:06,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:06,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 09:59:06,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:06,780 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 [2025-03-04 09:59:06,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:06,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 09:59:06,886 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:06,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 09:59:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:06,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:06,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:06,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785167483] [2025-03-04 09:59:06,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785167483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:06,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:06,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:59:06,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186365201] [2025-03-04 09:59:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:06,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:59:06,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:06,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:59:06,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:59:07,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 132 [2025-03-04 09:59:07,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 906 flow. Second operand has 7 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 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) [2025-03-04 09:59:07,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:07,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 132 [2025-03-04 09:59:07,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:08,165 INFO L124 PetriNetUnfolderBase]: 2434/5030 cut-off events. [2025-03-04 09:59:08,166 INFO L125 PetriNetUnfolderBase]: For 14598/14943 co-relation queries the response was YES. [2025-03-04 09:59:08,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16520 conditions, 5030 events. 2434/5030 cut-off events. For 14598/14943 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 38859 event pairs, 714 based on Foata normal form. 89/5044 useless extension candidates. Maximal degree in co-relation 13813. Up to 1820 conditions per place. [2025-03-04 09:59:08,185 INFO L140 encePairwiseOnDemand]: 120/132 looper letters, 144 selfloop transitions, 24 changer transitions 0/214 dead transitions. [2025-03-04 09:59:08,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 214 transitions, 1588 flow [2025-03-04 09:59:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:59:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:59:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 602 transitions. [2025-03-04 09:59:08,187 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5067340067340067 [2025-03-04 09:59:08,187 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 906 flow. Second operand 9 states and 602 transitions. [2025-03-04 09:59:08,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 214 transitions, 1588 flow [2025-03-04 09:59:08,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 214 transitions, 1532 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-04 09:59:08,246 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 904 flow [2025-03-04 09:59:08,246 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=904, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2025-03-04 09:59:08,246 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 20 predicate places. [2025-03-04 09:59:08,246 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 904 flow [2025-03-04 09:59:08,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.57142857142857) internal successors, (382), 7 states have internal predecessors, (382), 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) [2025-03-04 09:59:08,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:08,247 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:08,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 09:59:08,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:08,447 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:08,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 895404392, now seen corresponding path program 1 times [2025-03-04 09:59:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:08,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757153712] [2025-03-04 09:59:08,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:08,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:08,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:08,450 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:08,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 09:59:08,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 09:59:08,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 09:59:08,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:08,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:08,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 09:59:08,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:08,567 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:08,567 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:08,567 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:08,568 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 [2025-03-04 09:59:08,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:08,624 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 [2025-03-04 09:59:08,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:08,633 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:08,633 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:08,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757153712] [2025-03-04 09:59:08,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757153712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:08,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:08,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:08,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398800842] [2025-03-04 09:59:08,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:08,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:08,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:08,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:08,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:08,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2025-03-04 09:59:08,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 904 flow. Second operand has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 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) [2025-03-04 09:59:08,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:08,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2025-03-04 09:59:08,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:10,409 INFO L124 PetriNetUnfolderBase]: 2959/5702 cut-off events. [2025-03-04 09:59:10,409 INFO L125 PetriNetUnfolderBase]: For 19986/20478 co-relation queries the response was YES. [2025-03-04 09:59:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20397 conditions, 5702 events. 2959/5702 cut-off events. For 19986/20478 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 41943 event pairs, 1047 based on Foata normal form. 187/5829 useless extension candidates. Maximal degree in co-relation 17407. Up to 2612 conditions per place. [2025-03-04 09:59:10,428 INFO L140 encePairwiseOnDemand]: 108/132 looper letters, 114 selfloop transitions, 67 changer transitions 0/216 dead transitions. [2025-03-04 09:59:10,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 216 transitions, 1795 flow [2025-03-04 09:59:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 536 transitions. [2025-03-04 09:59:10,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5800865800865801 [2025-03-04 09:59:10,430 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 904 flow. Second operand 7 states and 536 transitions. [2025-03-04 09:59:10,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 216 transitions, 1795 flow [2025-03-04 09:59:10,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 216 transitions, 1744 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-04 09:59:10,460 INFO L231 Difference]: Finished difference. Result has 147 places, 166 transitions, 1416 flow [2025-03-04 09:59:10,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1416, PETRI_PLACES=147, PETRI_TRANSITIONS=166} [2025-03-04 09:59:10,461 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 25 predicate places. [2025-03-04 09:59:10,461 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 166 transitions, 1416 flow [2025-03-04 09:59:10,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 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) [2025-03-04 09:59:10,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:10,461 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:10,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 09:59:10,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:10,662 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:10,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1987783317, now seen corresponding path program 1 times [2025-03-04 09:59:10,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:10,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101048606] [2025-03-04 09:59:10,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:10,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:10,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:10,664 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:10,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 09:59:10,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 09:59:10,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 09:59:10,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:10,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:10,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 09:59:10,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:10,852 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_83| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_83| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_83|)))) is different from true [2025-03-04 09:59:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:10,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:10,862 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101048606] [2025-03-04 09:59:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101048606] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:10,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:10,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:10,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548679807] [2025-03-04 09:59:10,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:10,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:10,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:10,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2025-03-04 09:59:10,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 132 [2025-03-04 09:59:10,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 1416 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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) [2025-03-04 09:59:10,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:10,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 132 [2025-03-04 09:59:10,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:11,897 INFO L124 PetriNetUnfolderBase]: 4214/7731 cut-off events. [2025-03-04 09:59:11,897 INFO L125 PetriNetUnfolderBase]: For 36396/36402 co-relation queries the response was YES. [2025-03-04 09:59:11,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31890 conditions, 7731 events. 4214/7731 cut-off events. For 36396/36402 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 57337 event pairs, 1830 based on Foata normal form. 3/7712 useless extension candidates. Maximal degree in co-relation 26828. Up to 3711 conditions per place. [2025-03-04 09:59:11,934 INFO L140 encePairwiseOnDemand]: 106/132 looper letters, 150 selfloop transitions, 37 changer transitions 4/216 dead transitions. [2025-03-04 09:59:11,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 216 transitions, 2111 flow [2025-03-04 09:59:11,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:59:11,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:59:11,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2025-03-04 09:59:11,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2025-03-04 09:59:11,935 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 1416 flow. Second operand 5 states and 310 transitions. [2025-03-04 09:59:11,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 216 transitions, 2111 flow [2025-03-04 09:59:12,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 216 transitions, 2059 flow, removed 26 selfloop flow, removed 0 redundant places. [2025-03-04 09:59:12,027 INFO L231 Difference]: Finished difference. Result has 154 places, 184 transitions, 1650 flow [2025-03-04 09:59:12,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1650, PETRI_PLACES=154, PETRI_TRANSITIONS=184} [2025-03-04 09:59:12,028 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 32 predicate places. [2025-03-04 09:59:12,028 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 184 transitions, 1650 flow [2025-03-04 09:59:12,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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) [2025-03-04 09:59:12,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:12,028 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:12,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 09:59:12,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:12,229 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:12,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1109094200, now seen corresponding path program 1 times [2025-03-04 09:59:12,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:12,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959867115] [2025-03-04 09:59:12,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:12,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:12,235 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:12,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 09:59:12,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:59:12,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:59:12,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:12,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:12,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:59:12,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:12,407 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 [2025-03-04 09:59:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:12,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:12,417 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:12,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959867115] [2025-03-04 09:59:12,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959867115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:12,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:12,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:59:12,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135260597] [2025-03-04 09:59:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:12,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:59:12,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:12,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:59:12,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:59:12,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2025-03-04 09:59:12,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 184 transitions, 1650 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-03-04 09:59:12,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:12,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2025-03-04 09:59:12,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:13,355 INFO L124 PetriNetUnfolderBase]: 2909/5652 cut-off events. [2025-03-04 09:59:13,355 INFO L125 PetriNetUnfolderBase]: For 35798/36404 co-relation queries the response was YES. [2025-03-04 09:59:13,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26204 conditions, 5652 events. 2909/5652 cut-off events. For 35798/36404 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 43118 event pairs, 1471 based on Foata normal form. 153/5627 useless extension candidates. Maximal degree in co-relation 22250. Up to 3877 conditions per place. [2025-03-04 09:59:13,380 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 104 selfloop transitions, 5 changer transitions 0/190 dead transitions. [2025-03-04 09:59:13,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 190 transitions, 1920 flow [2025-03-04 09:59:13,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:59:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:59:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-03-04 09:59:13,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2025-03-04 09:59:13,381 INFO L175 Difference]: Start difference. First operand has 154 places, 184 transitions, 1650 flow. Second operand 3 states and 257 transitions. [2025-03-04 09:59:13,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 190 transitions, 1920 flow [2025-03-04 09:59:13,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 190 transitions, 1823 flow, removed 26 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:13,443 INFO L231 Difference]: Finished difference. Result has 150 places, 182 transitions, 1563 flow [2025-03-04 09:59:13,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1563, PETRI_PLACES=150, PETRI_TRANSITIONS=182} [2025-03-04 09:59:13,444 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 28 predicate places. [2025-03-04 09:59:13,444 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 182 transitions, 1563 flow [2025-03-04 09:59:13,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-03-04 09:59:13,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:13,444 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:13,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-04 09:59:13,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:13,645 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:13,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:13,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1430151459, now seen corresponding path program 1 times [2025-03-04 09:59:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:13,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121506282] [2025-03-04 09:59:13,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:13,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:13,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:13,647 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:13,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 09:59:13,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:59:13,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:59:13,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:13,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:13,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:59:13,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:13,764 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 [2025-03-04 09:59:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:13,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:13,769 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:13,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121506282] [2025-03-04 09:59:13,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121506282] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:13,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:13,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:59:13,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631432713] [2025-03-04 09:59:13,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:13,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:59:13,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:13,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:59:13,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:59:13,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2025-03-04 09:59:13,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 182 transitions, 1563 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-03-04 09:59:13,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:13,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2025-03-04 09:59:13,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:14,447 INFO L124 PetriNetUnfolderBase]: 2909/5644 cut-off events. [2025-03-04 09:59:14,447 INFO L125 PetriNetUnfolderBase]: For 30456/31055 co-relation queries the response was YES. [2025-03-04 09:59:14,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25357 conditions, 5644 events. 2909/5644 cut-off events. For 30456/31055 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 42979 event pairs, 1471 based on Foata normal form. 153/5619 useless extension candidates. Maximal degree in co-relation 24623. Up to 3877 conditions per place. [2025-03-04 09:59:14,473 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 104 selfloop transitions, 5 changer transitions 0/188 dead transitions. [2025-03-04 09:59:14,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 188 transitions, 1829 flow [2025-03-04 09:59:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:59:14,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:59:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-03-04 09:59:14,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.648989898989899 [2025-03-04 09:59:14,474 INFO L175 Difference]: Start difference. First operand has 150 places, 182 transitions, 1563 flow. Second operand 3 states and 257 transitions. [2025-03-04 09:59:14,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 188 transitions, 1829 flow [2025-03-04 09:59:14,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 188 transitions, 1819 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:14,540 INFO L231 Difference]: Finished difference. Result has 148 places, 180 transitions, 1559 flow [2025-03-04 09:59:14,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1549, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1559, PETRI_PLACES=148, PETRI_TRANSITIONS=180} [2025-03-04 09:59:14,541 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, 26 predicate places. [2025-03-04 09:59:14,541 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 180 transitions, 1559 flow [2025-03-04 09:59:14,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-03-04 09:59:14,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:14,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:14,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 09:59:14,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:14,741 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:14,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash -333731408, now seen corresponding path program 1 times [2025-03-04 09:59:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:14,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893505870] [2025-03-04 09:59:14,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:14,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:14,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:14,747 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:14,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 09:59:14,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:59:14,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:59:14,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:14,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:14,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:59:14,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:14,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:14,872 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:14,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893505870] [2025-03-04 09:59:14,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893505870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:14,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:14,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:14,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696243954] [2025-03-04 09:59:14,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:14,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:14,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:14,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:14,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2025-03-04 09:59:14,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 180 transitions, 1559 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2025-03-04 09:59:14,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:14,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2025-03-04 09:59:14,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:15,042 INFO L124 PetriNetUnfolderBase]: 265/539 cut-off events. [2025-03-04 09:59:15,042 INFO L125 PetriNetUnfolderBase]: For 2927/2993 co-relation queries the response was YES. [2025-03-04 09:59:15,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 539 events. 265/539 cut-off events. For 2927/2993 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2212 event pairs, 49 based on Foata normal form. 49/568 useless extension candidates. Maximal degree in co-relation 2401. Up to 269 conditions per place. [2025-03-04 09:59:15,044 INFO L140 encePairwiseOnDemand]: 128/132 looper letters, 60 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2025-03-04 09:59:15,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 100 transitions, 807 flow [2025-03-04 09:59:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:15,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2025-03-04 09:59:15,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.634469696969697 [2025-03-04 09:59:15,045 INFO L175 Difference]: Start difference. First operand has 148 places, 180 transitions, 1559 flow. Second operand 4 states and 335 transitions. [2025-03-04 09:59:15,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 100 transitions, 807 flow [2025-03-04 09:59:15,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 100 transitions, 534 flow, removed 34 selfloop flow, removed 39 redundant places. [2025-03-04 09:59:15,052 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 326 flow [2025-03-04 09:59:15,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2025-03-04 09:59:15,053 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -28 predicate places. [2025-03-04 09:59:15,053 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 326 flow [2025-03-04 09:59:15,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2025-03-04 09:59:15,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:15,053 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:15,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 09:59:15,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,254 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:15,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1674372525, now seen corresponding path program 1 times [2025-03-04 09:59:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:15,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772878240] [2025-03-04 09:59:15,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:15,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:15,256 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:15,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 09:59:15,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 09:59:15,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 09:59:15,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:15,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:15,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 09:59:15,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:15,411 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 13 treesize of output 11 [2025-03-04 09:59:15,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:15,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:15,428 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:15,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772878240] [2025-03-04 09:59:15,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772878240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:15,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:15,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:15,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038010750] [2025-03-04 09:59:15,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:15,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:15,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:15,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:15,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:15,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 132 [2025-03-04 09:59:15,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 326 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2025-03-04 09:59:15,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:15,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 132 [2025-03-04 09:59:15,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:15,787 INFO L124 PetriNetUnfolderBase]: 322/729 cut-off events. [2025-03-04 09:59:15,787 INFO L125 PetriNetUnfolderBase]: For 1578/1580 co-relation queries the response was YES. [2025-03-04 09:59:15,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 729 events. 322/729 cut-off events. For 1578/1580 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3612 event pairs, 28 based on Foata normal form. 12/736 useless extension candidates. Maximal degree in co-relation 2346. Up to 282 conditions per place. [2025-03-04 09:59:15,790 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 83 selfloop transitions, 19 changer transitions 0/133 dead transitions. [2025-03-04 09:59:15,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 133 transitions, 810 flow [2025-03-04 09:59:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 569 transitions. [2025-03-04 09:59:15,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6158008658008658 [2025-03-04 09:59:15,791 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 326 flow. Second operand 7 states and 569 transitions. [2025-03-04 09:59:15,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 133 transitions, 810 flow [2025-03-04 09:59:15,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 133 transitions, 762 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:59:15,794 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 423 flow [2025-03-04 09:59:15,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2025-03-04 09:59:15,794 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2025-03-04 09:59:15,794 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 423 flow [2025-03-04 09:59:15,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2025-03-04 09:59:15,795 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:15,795 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:15,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-04 09:59:15,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,995 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:15,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1918699285, now seen corresponding path program 2 times [2025-03-04 09:59:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:15,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230287251] [2025-03-04 09:59:15,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:59:15,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:15,998 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:15,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 09:59:16,106 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 1 equivalence classes. [2025-03-04 09:59:16,148 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 09:59:16,148 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:59:16,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:16,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 09:59:16,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:16,224 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 09:59:16,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 09:59:16,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2025-03-04 09:59:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:16,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:16,260 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:16,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230287251] [2025-03-04 09:59:16,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230287251] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:16,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:16,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:16,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571375522] [2025-03-04 09:59:16,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:16,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:16,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:16,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:16,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:16,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 132 [2025-03-04 09:59:16,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 423 flow. Second operand has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 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) [2025-03-04 09:59:16,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:16,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 132 [2025-03-04 09:59:16,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:16,661 INFO L124 PetriNetUnfolderBase]: 325/680 cut-off events. [2025-03-04 09:59:16,661 INFO L125 PetriNetUnfolderBase]: For 1570/1592 co-relation queries the response was YES. [2025-03-04 09:59:16,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 680 events. 325/680 cut-off events. For 1570/1592 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3168 event pairs, 102 based on Foata normal form. 0/659 useless extension candidates. Maximal degree in co-relation 2385. Up to 236 conditions per place. [2025-03-04 09:59:16,664 INFO L140 encePairwiseOnDemand]: 126/132 looper letters, 87 selfloop transitions, 14 changer transitions 0/127 dead transitions. [2025-03-04 09:59:16,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 127 transitions, 821 flow [2025-03-04 09:59:16,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:59:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:59:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2025-03-04 09:59:16,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5348484848484848 [2025-03-04 09:59:16,666 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 423 flow. Second operand 5 states and 353 transitions. [2025-03-04 09:59:16,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 127 transitions, 821 flow [2025-03-04 09:59:16,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 127 transitions, 803 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-03-04 09:59:16,669 INFO L231 Difference]: Finished difference. Result has 101 places, 95 transitions, 443 flow [2025-03-04 09:59:16,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=443, PETRI_PLACES=101, PETRI_TRANSITIONS=95} [2025-03-04 09:59:16,670 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -21 predicate places. [2025-03-04 09:59:16,670 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 95 transitions, 443 flow [2025-03-04 09:59:16,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 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) [2025-03-04 09:59:16,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:16,670 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:16,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 09:59:16,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:16,871 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:16,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:16,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1023088296, now seen corresponding path program 1 times [2025-03-04 09:59:16,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:16,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370850243] [2025-03-04 09:59:16,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:16,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:16,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:16,874 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:16,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 09:59:16,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 09:59:17,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 09:59:17,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:17,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:17,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 09:59:17,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:17,043 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 [2025-03-04 09:59:17,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:17,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 09:59:17,200 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:17,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 09:59:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:17,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:17,221 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:17,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370850243] [2025-03-04 09:59:17,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370850243] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:17,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:17,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:17,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831212720] [2025-03-04 09:59:17,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:17,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:17,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:17,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:17,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 132 [2025-03-04 09:59:17,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 95 transitions, 443 flow. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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) [2025-03-04 09:59:17,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:17,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 132 [2025-03-04 09:59:17,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:17,521 INFO L124 PetriNetUnfolderBase]: 324/673 cut-off events. [2025-03-04 09:59:17,521 INFO L125 PetriNetUnfolderBase]: For 1799/1821 co-relation queries the response was YES. [2025-03-04 09:59:17,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2483 conditions, 673 events. 324/673 cut-off events. For 1799/1821 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3146 event pairs, 109 based on Foata normal form. 3/649 useless extension candidates. Maximal degree in co-relation 2469. Up to 343 conditions per place. [2025-03-04 09:59:17,523 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 74 selfloop transitions, 11 changer transitions 0/105 dead transitions. [2025-03-04 09:59:17,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 105 transitions, 694 flow [2025-03-04 09:59:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:59:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:59:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 328 transitions. [2025-03-04 09:59:17,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2025-03-04 09:59:17,524 INFO L175 Difference]: Start difference. First operand has 101 places, 95 transitions, 443 flow. Second operand 5 states and 328 transitions. [2025-03-04 09:59:17,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 105 transitions, 694 flow [2025-03-04 09:59:17,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 105 transitions, 666 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:17,527 INFO L231 Difference]: Finished difference. Result has 95 places, 89 transitions, 425 flow [2025-03-04 09:59:17,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=425, PETRI_PLACES=95, PETRI_TRANSITIONS=89} [2025-03-04 09:59:17,527 INFO L279 CegarLoopForPetriNet]: 122 programPoint places, -27 predicate places. [2025-03-04 09:59:17,527 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 89 transitions, 425 flow [2025-03-04 09:59:17,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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) [2025-03-04 09:59:17,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:17,527 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:17,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 09:59:17,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,731 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2025-03-04 09:59:17,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:17,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1735953686, now seen corresponding path program 1 times [2025-03-04 09:59:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:17,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653846394] [2025-03-04 09:59:17,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:17,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:17,734 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:17,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 09:59:17,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 09:59:17,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 09:59:17,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:17,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:17,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-04 09:59:17,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:18,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:18,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:18,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:18,021 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:18,022 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:18,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2025-03-04 09:59:18,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:18,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2025-03-04 09:59:20,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:20,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2025-03-04 09:59:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:20,054 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:20,054 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653846394] [2025-03-04 09:59:20,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653846394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:20,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:20,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 09:59:20,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526222408] [2025-03-04 09:59:20,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:20,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 09:59:20,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:20,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 09:59:20,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=54, Unknown=1, NotChecked=0, Total=72 [2025-03-04 09:59:22,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:23,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:25,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:27,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:29,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:31,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:33,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:35,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:38,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:40,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:42,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:43,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:45,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:47,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:49,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:51,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:53,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:55,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 09:59:57,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:00,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:03,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:05,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:07,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:09,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:11,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:13,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:15,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:18,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 10:00:18,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 132 [2025-03-04 10:00:18,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 89 transitions, 425 flow. Second operand has 9 states, 9 states have (on average 34.111111111111114) internal successors, (307), 9 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:00:18,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:00:18,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 132 [2025-03-04 10:00:18,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:00:22,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]