./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:11:40,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:11:40,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:11:40,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:11:40,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:11:40,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:11:40,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:11:40,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:11:40,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:11:40,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:11:40,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:11:40,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:11:40,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:11:40,125 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:11:40,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:11:40,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:11:40,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:11:40,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:11:40,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:11:40,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:11:40,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:11:40,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:11:40,126 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 -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2025-03-09 01:11:40,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:11:40,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:11:40,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:11:40,374 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:11:40,374 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:11:40,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-09 01:11:41,553 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394cb45f3/79a012f5f4a4401da10de991e3ad23d8/FLAGfe584cd4e [2025-03-09 01:11:41,845 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:11:41,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-09 01:11:41,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394cb45f3/79a012f5f4a4401da10de991e3ad23d8/FLAGfe584cd4e [2025-03-09 01:11:42,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/394cb45f3/79a012f5f4a4401da10de991e3ad23d8 [2025-03-09 01:11:42,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:11:42,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:11:42,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:11:42,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:11:42,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:11:42,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:11:42" (1/1) ... [2025-03-09 01:11:42,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1feab05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:42, skipping insertion in model container [2025-03-09 01:11:42,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:11:42" (1/1) ... [2025-03-09 01:11:42,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:11:42,384 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:42,389 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:42,397 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:42,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:11:42,415 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) [2025-03-09 01:11:42,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19298ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:42, skipping insertion in model container [2025-03-09 01:11:42,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:11:42,416 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-09 01:11:42,417 INFO L158 Benchmark]: Toolchain (without parser) took 288.49ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 91.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:11:42,418 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:11:42,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.73ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 91.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:11:42,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.73ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 91.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:11:44,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:11:44,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-09 01:11:44,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:11:44,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:11:44,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:11:44,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:11:44,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:11:44,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:11:44,360 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:11:44,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:11:44,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:11:44,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:11:44,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:11:44,361 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:11:44,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:11:44,361 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:11:44,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:11:44,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:11:44,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:11:44,363 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:11:44,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:11:44,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:11:44,363 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 -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2025-03-09 01:11:44,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:11:44,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:11:44,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:11:44,621 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:11:44,622 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:11:44,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-09 01:11:45,827 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d662e66c5/5ffb29da286d4cf99a946456791fe19f/FLAGcaad427f1 [2025-03-09 01:11:46,063 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:11:46,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-09 01:11:46,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d662e66c5/5ffb29da286d4cf99a946456791fe19f/FLAGcaad427f1 [2025-03-09 01:11:46,093 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d662e66c5/5ffb29da286d4cf99a946456791fe19f [2025-03-09 01:11:46,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:11:46,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:11:46,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:11:46,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:11:46,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:11:46,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46, skipping insertion in model container [2025-03-09 01:11:46,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:11:46,409 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:46,423 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:46,429 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:46,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:11:46,453 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-09 01:11:46,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:11:46,491 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:46,494 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:46,495 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:11:46,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:11:46,509 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:11:46,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:11:46,618 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:11:46,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46 WrapperNode [2025-03-09 01:11:46,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:11:46,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:11:46,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:11:46,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:11:46,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,655 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2025-03-09 01:11:46,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:11:46,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:11:46,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:11:46,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:11:46,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,691 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2025-03-09 01:11:46,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,711 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:11:46,729 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:11:46,729 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:11:46,729 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:11:46,730 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (1/1) ... [2025-03-09 01:11:46,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:11:46,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:46,761 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) [2025-03-09 01:11:46,764 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 [2025-03-09 01:11:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-09 01:11:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-09 01:11:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-09 01:11:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 01:11:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:11:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:11:46,789 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:11:47,046 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:11:47,047 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:11:47,481 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:11:47,481 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:11:47,616 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:11:47,616 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:11:47,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:11:47 BoogieIcfgContainer [2025-03-09 01:11:47,617 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:11:47,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:11:47,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:11:47,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:11:47,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:11:46" (1/3) ... [2025-03-09 01:11:47,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d104c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:11:47, skipping insertion in model container [2025-03-09 01:11:47,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:46" (2/3) ... [2025-03-09 01:11:47,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d104c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:11:47, skipping insertion in model container [2025-03-09 01:11:47,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:11:47" (3/3) ... [2025-03-09 01:11:47,626 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2025-03-09 01:11:47,636 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:11:47,637 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_5-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2025-03-09 01:11:47,637 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:11:47,710 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 01:11:47,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2025-03-09 01:11:47,802 INFO L124 PetriNetUnfolderBase]: 14/157 cut-off events. [2025-03-09 01:11:47,804 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 01:11:47,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 14/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 504 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2025-03-09 01:11:47,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2025-03-09 01:11:47,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2025-03-09 01:11:47,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:11:47,831 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;@69747a64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:11:47,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-03-09 01:11:47,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:11:47,836 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-03-09 01:11:47,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:11:47,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:47,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 01:11:47,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:47,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash 559008, now seen corresponding path program 1 times [2025-03-09 01:11:47,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:47,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77615743] [2025-03-09 01:11:47,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:47,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:47,856 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) [2025-03-09 01:11:47,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 01:11:47,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 01:11:47,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 01:11:47,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:47,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:47,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 01:11:47,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:48,010 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 [2025-03-09 01:11:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:48,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:48,027 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:48,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77615743] [2025-03-09 01:11:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77615743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:48,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:48,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:11:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42192942] [2025-03-09 01:11:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:48,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:11:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:48,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:11:48,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:11:48,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-09 01:11:48,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:48,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:48,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-09 01:11:48,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:49,294 INFO L124 PetriNetUnfolderBase]: 4409/10835 cut-off events. [2025-03-09 01:11:49,295 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-03-09 01:11:49,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17919 conditions, 10835 events. 4409/10835 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111241 event pairs, 559 based on Foata normal form. 792/8156 useless extension candidates. Maximal degree in co-relation 16922. Up to 6052 conditions per place. [2025-03-09 01:11:49,379 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2025-03-09 01:11:49,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2025-03-09 01:11:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:11:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:11:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-03-09 01:11:49,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2025-03-09 01:11:49,392 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2025-03-09 01:11:49,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2025-03-09 01:11:49,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 01:11:49,401 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2025-03-09 01:11:49,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2025-03-09 01:11:49,405 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2025-03-09 01:11:49,406 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2025-03-09 01:11:49,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:49,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:49,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 01:11:49,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 01:11:49,610 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 [2025-03-09 01:11:49,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:49,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash 559009, now seen corresponding path program 1 times [2025-03-09 01:11:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:49,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903287038] [2025-03-09 01:11:49,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:49,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:49,614 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) [2025-03-09 01:11:49,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 01:11:49,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 01:11:49,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 01:11:49,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:49,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:49,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 01:11:49,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:49,712 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 [2025-03-09 01:11:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:49,719 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:49,719 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:49,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903287038] [2025-03-09 01:11:49,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903287038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:49,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:49,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:11:49,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933149078] [2025-03-09 01:11:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:49,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:11:49,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:49,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:11:49,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:11:49,785 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-09 01:11:49,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:49,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:49,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-09 01:11:49,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:50,808 INFO L124 PetriNetUnfolderBase]: 4409/10833 cut-off events. [2025-03-09 01:11:50,810 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2025-03-09 01:11:50,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18083 conditions, 10833 events. 4409/10833 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111470 event pairs, 559 based on Foata normal form. 1/7363 useless extension candidates. Maximal degree in co-relation 1994. Up to 6052 conditions per place. [2025-03-09 01:11:50,862 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2025-03-09 01:11:50,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2025-03-09 01:11:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:11:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:11:50,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2025-03-09 01:11:50,866 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2025-03-09 01:11:50,866 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2025-03-09 01:11:50,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2025-03-09 01:11:50,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:11:50,870 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2025-03-09 01:11:50,871 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2025-03-09 01:11:50,871 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-03-09 01:11:50,872 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2025-03-09 01:11:50,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:50,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:50,873 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 01:11:50,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 01:11:51,073 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 [2025-03-09 01:11:51,073 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:51,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:51,074 INFO L85 PathProgramCache]: Analyzing trace with hash 17327685, now seen corresponding path program 1 times [2025-03-09 01:11:51,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:51,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190953254] [2025-03-09 01:11:51,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:51,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:51,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:51,076 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) [2025-03-09 01:11:51,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 01:11:51,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 01:11:51,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 01:11:51,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:51,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:51,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 01:11:51,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:51,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:51,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190953254] [2025-03-09 01:11:51,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190953254] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:51,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:51,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:11:51,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143575110] [2025-03-09 01:11:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:51,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:11:51,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:51,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:11:51,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:11:51,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-03-09 01:11:51,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:51,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:51,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-03-09 01:11:51,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:51,844 INFO L124 PetriNetUnfolderBase]: 4773/8451 cut-off events. [2025-03-09 01:11:51,844 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2025-03-09 01:11:51,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16263 conditions, 8451 events. 4773/8451 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 63079 event pairs, 4407 based on Foata normal form. 0/5674 useless extension candidates. Maximal degree in co-relation 8903. Up to 7034 conditions per place. [2025-03-09 01:11:51,873 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 3 changer transitions 2/133 dead transitions. [2025-03-09 01:11:51,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 133 transitions, 468 flow [2025-03-09 01:11:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:11:51,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:11:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2025-03-09 01:11:51,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2025-03-09 01:11:51,875 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 224 transitions. [2025-03-09 01:11:51,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 133 transitions, 468 flow [2025-03-09 01:11:51,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 133 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:11:51,880 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 225 flow [2025-03-09 01:11:51,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2025-03-09 01:11:51,882 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -9 predicate places. [2025-03-09 01:11:51,882 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 225 flow [2025-03-09 01:11:51,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:51,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:51,883 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:51,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 01:11:52,083 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 [2025-03-09 01:11:52,083 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:52,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:52,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1557223967, now seen corresponding path program 1 times [2025-03-09 01:11:52,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:52,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702619812] [2025-03-09 01:11:52,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:52,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:52,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:52,086 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) [2025-03-09 01:11:52,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 01:11:52,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 01:11:52,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 01:11:52,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:52,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:52,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 01:11:52,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:52,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:52,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:52,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702619812] [2025-03-09 01:11:52,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702619812] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:52,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:52,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:11:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823359299] [2025-03-09 01:11:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:52,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:11:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:52,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:11:52,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:11:52,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-03-09 01:11:52,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-09 01:11:52,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:52,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-03-09 01:11:52,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:53,322 INFO L124 PetriNetUnfolderBase]: 5136/10771 cut-off events. [2025-03-09 01:11:53,322 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2025-03-09 01:11:53,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19345 conditions, 10771 events. 5136/10771 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 98939 event pairs, 559 based on Foata normal form. 0/8147 useless extension candidates. Maximal degree in co-relation 18015. Up to 6049 conditions per place. [2025-03-09 01:11:53,393 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2025-03-09 01:11:53,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 152 transitions, 569 flow [2025-03-09 01:11:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:11:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:11:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2025-03-09 01:11:53,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2025-03-09 01:11:53,395 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 225 flow. Second operand 4 states and 266 transitions. [2025-03-09 01:11:53,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 152 transitions, 569 flow [2025-03-09 01:11:53,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 152 transitions, 558 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-09 01:11:53,412 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 214 flow [2025-03-09 01:11:53,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2025-03-09 01:11:53,413 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2025-03-09 01:11:53,413 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 214 flow [2025-03-09 01:11:53,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-09 01:11:53,414 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:53,414 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:53,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 01:11:53,618 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 [2025-03-09 01:11:53,618 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:53,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:53,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1557223966, now seen corresponding path program 1 times [2025-03-09 01:11:53,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:53,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122750830] [2025-03-09 01:11:53,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:53,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:53,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:53,621 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) [2025-03-09 01:11:53,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 01:11:53,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 01:11:53,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 01:11:53,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:53,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:53,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 01:11:53,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:53,723 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 [2025-03-09 01:11:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:53,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:53,763 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122750830] [2025-03-09 01:11:53,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122750830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:53,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:53,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:11:53,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556058512] [2025-03-09 01:11:53,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:53,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:11:53,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:53,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:11:53,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:11:53,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-03-09 01:11:53,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:53,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:53,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-03-09 01:11:53,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:54,391 INFO L124 PetriNetUnfolderBase]: 4408/8119 cut-off events. [2025-03-09 01:11:54,391 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2025-03-09 01:11:54,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15582 conditions, 8119 events. 4408/8119 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 62485 event pairs, 3107 based on Foata normal form. 394/6145 useless extension candidates. Maximal degree in co-relation 6668. Up to 4910 conditions per place. [2025-03-09 01:11:54,415 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 105 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-03-09 01:11:54,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 133 transitions, 498 flow [2025-03-09 01:11:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:11:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:11:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2025-03-09 01:11:54,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2025-03-09 01:11:54,417 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 214 flow. Second operand 3 states and 223 transitions. [2025-03-09 01:11:54,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 133 transitions, 498 flow [2025-03-09 01:11:54,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 133 transitions, 486 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 01:11:54,420 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 225 flow [2025-03-09 01:11:54,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2025-03-09 01:11:54,421 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2025-03-09 01:11:54,421 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 225 flow [2025-03-09 01:11:54,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:54,421 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:54,421 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:54,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 01:11:54,622 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 [2025-03-09 01:11:54,622 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:54,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:54,622 INFO L85 PathProgramCache]: Analyzing trace with hash -921128507, now seen corresponding path program 1 times [2025-03-09 01:11:54,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:54,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343019117] [2025-03-09 01:11:54,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:54,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:54,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:54,625 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) [2025-03-09 01:11:54,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 01:11:54,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 01:11:54,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 01:11:54,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:54,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:54,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 01:11:54,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:54,719 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 [2025-03-09 01:11:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:54,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:54,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:54,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343019117] [2025-03-09 01:11:54,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343019117] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:54,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:54,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:11:54,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027218792] [2025-03-09 01:11:54,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:54,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:11:54,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:54,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:11:54,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:11:54,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:11:54,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:54,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:54,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:11:54,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:55,688 INFO L124 PetriNetUnfolderBase]: 3844/8014 cut-off events. [2025-03-09 01:11:55,688 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2025-03-09 01:11:55,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14903 conditions, 8014 events. 3844/8014 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 67365 event pairs, 253 based on Foata normal form. 0/6199 useless extension candidates. Maximal degree in co-relation 9082. Up to 3713 conditions per place. [2025-03-09 01:11:55,716 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 169 selfloop transitions, 13 changer transitions 1/214 dead transitions. [2025-03-09 01:11:55,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 214 transitions, 830 flow [2025-03-09 01:11:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:11:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:11:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 534 transitions. [2025-03-09 01:11:55,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5383064516129032 [2025-03-09 01:11:55,719 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 225 flow. Second operand 8 states and 534 transitions. [2025-03-09 01:11:55,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 214 transitions, 830 flow [2025-03-09 01:11:55,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 214 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:11:55,729 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 313 flow [2025-03-09 01:11:55,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=313, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2025-03-09 01:11:55,732 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2025-03-09 01:11:55,732 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 313 flow [2025-03-09 01:11:55,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:55,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:55,732 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:55,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 01:11:55,933 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 [2025-03-09 01:11:55,934 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:55,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash -921128506, now seen corresponding path program 1 times [2025-03-09 01:11:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:55,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497625166] [2025-03-09 01:11:55,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:55,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:55,940 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) [2025-03-09 01:11:55,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 01:11:56,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 01:11:56,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 01:11:56,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:56,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:56,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 01:11:56,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:56,065 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 [2025-03-09 01:11:56,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:56,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:56,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:56,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497625166] [2025-03-09 01:11:56,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497625166] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:56,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:56,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:11:56,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789739401] [2025-03-09 01:11:56,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:56,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:11:56,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:56,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:11:56,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:11:56,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:11:56,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 313 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:56,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:56,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:11:56,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:57,140 INFO L124 PetriNetUnfolderBase]: 2867/6051 cut-off events. [2025-03-09 01:11:57,140 INFO L125 PetriNetUnfolderBase]: For 2275/2275 co-relation queries the response was YES. [2025-03-09 01:11:57,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12516 conditions, 6051 events. 2867/6051 cut-off events. For 2275/2275 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 48269 event pairs, 257 based on Foata normal form. 524/5632 useless extension candidates. Maximal degree in co-relation 11053. Up to 3099 conditions per place. [2025-03-09 01:11:57,161 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 151 selfloop transitions, 10 changer transitions 2/194 dead transitions. [2025-03-09 01:11:57,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 194 transitions, 827 flow [2025-03-09 01:11:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:11:57,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:11:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2025-03-09 01:11:57,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-03-09 01:11:57,163 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 313 flow. Second operand 7 states and 465 transitions. [2025-03-09 01:11:57,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 194 transitions, 827 flow [2025-03-09 01:11:57,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 194 transitions, 827 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 01:11:57,175 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 366 flow [2025-03-09 01:11:57,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2025-03-09 01:11:57,176 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2025-03-09 01:11:57,176 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 366 flow [2025-03-09 01:11:57,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:57,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:57,177 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:57,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 01:11:57,377 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 [2025-03-09 01:11:57,377 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:57,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1357901531, now seen corresponding path program 1 times [2025-03-09 01:11:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:57,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118608105] [2025-03-09 01:11:57,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:57,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:57,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:57,380 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) [2025-03-09 01:11:57,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 01:11:57,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:11:57,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:11:57,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:57,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:57,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 01:11:57,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:57,489 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 [2025-03-09 01:11:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:57,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:57,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:57,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118608105] [2025-03-09 01:11:57,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118608105] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:57,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:57,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:11:57,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063006762] [2025-03-09 01:11:57,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:57,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:11:57,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:57,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:11:57,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:11:57,667 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:11:57,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 366 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:57,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:57,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:11:57,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:58,619 INFO L124 PetriNetUnfolderBase]: 2636/5484 cut-off events. [2025-03-09 01:11:58,619 INFO L125 PetriNetUnfolderBase]: For 3778/3778 co-relation queries the response was YES. [2025-03-09 01:11:58,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12310 conditions, 5484 events. 2636/5484 cut-off events. For 3778/3778 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 42523 event pairs, 191 based on Foata normal form. 0/4807 useless extension candidates. Maximal degree in co-relation 10986. Up to 2221 conditions per place. [2025-03-09 01:11:58,635 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2025-03-09 01:11:58,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 222 transitions, 1105 flow [2025-03-09 01:11:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:11:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:11:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2025-03-09 01:11:58,637 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2025-03-09 01:11:58,637 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 366 flow. Second operand 8 states and 530 transitions. [2025-03-09 01:11:58,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 222 transitions, 1105 flow [2025-03-09 01:11:58,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 222 transitions, 1075 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 01:11:58,645 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 469 flow [2025-03-09 01:11:58,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=469, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2025-03-09 01:11:58,645 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2025-03-09 01:11:58,646 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 469 flow [2025-03-09 01:11:58,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:58,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:58,646 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:58,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 01:11:58,847 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 [2025-03-09 01:11:58,848 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:11:58,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:58,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1357901530, now seen corresponding path program 1 times [2025-03-09 01:11:58,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:11:58,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060934132] [2025-03-09 01:11:58,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:58,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:11:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:58,851 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) [2025-03-09 01:11:58,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 01:11:58,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:11:58,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:11:58,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:58,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:58,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 01:11:58,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:11:58,952 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 [2025-03-09 01:11:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:59,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:11:59,025 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:11:59,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060934132] [2025-03-09 01:11:59,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060934132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:59,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:59,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:11:59,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407121712] [2025-03-09 01:11:59,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:59,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:11:59,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:11:59,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:11:59,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:11:59,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:11:59,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:59,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:59,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:11:59,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:59,884 INFO L124 PetriNetUnfolderBase]: 1987/4195 cut-off events. [2025-03-09 01:11:59,884 INFO L125 PetriNetUnfolderBase]: For 4454/4456 co-relation queries the response was YES. [2025-03-09 01:11:59,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10529 conditions, 4195 events. 1987/4195 cut-off events. For 4454/4456 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 30963 event pairs, 384 based on Foata normal form. 378/4449 useless extension candidates. Maximal degree in co-relation 9449. Up to 2291 conditions per place. [2025-03-09 01:11:59,901 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2025-03-09 01:11:59,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 191 transitions, 1027 flow [2025-03-09 01:11:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:11:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:11:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2025-03-09 01:11:59,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2025-03-09 01:11:59,903 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 469 flow. Second operand 7 states and 448 transitions. [2025-03-09 01:11:59,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 191 transitions, 1027 flow [2025-03-09 01:11:59,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 191 transitions, 1024 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:11:59,913 INFO L231 Difference]: Finished difference. Result has 137 places, 124 transitions, 540 flow [2025-03-09 01:11:59,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=540, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2025-03-09 01:11:59,914 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 19 predicate places. [2025-03-09 01:11:59,914 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 540 flow [2025-03-09 01:11:59,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:59,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:59,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:59,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 01:12:00,114 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 [2025-03-09 01:12:00,115 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:00,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1382685240, now seen corresponding path program 1 times [2025-03-09 01:12:00,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:00,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503597261] [2025-03-09 01:12:00,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:00,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:00,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:00,117 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) [2025-03-09 01:12:00,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 01:12:00,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 01:12:00,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 01:12:00,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:00,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:00,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 01:12:00,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:00,229 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:00,229 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:00,230 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:00,233 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 [2025-03-09 01:12:00,263 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:00,264 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:00,264 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:00,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-09 01:12:00,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2025-03-09 01:12:00,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-09 01:12:00,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 65 [2025-03-09 01:12:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:00,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:00,378 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:00,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503597261] [2025-03-09 01:12:00,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503597261] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:00,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:00,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:12:00,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133713949] [2025-03-09 01:12:00,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:00,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:12:00,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:00,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:12:00,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:12:00,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-09 01:12:00,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 124 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:00,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:00,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-09 01:12:00,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:03,084 INFO L124 PetriNetUnfolderBase]: 2833/5364 cut-off events. [2025-03-09 01:12:03,085 INFO L125 PetriNetUnfolderBase]: For 9062/9066 co-relation queries the response was YES. [2025-03-09 01:12:03,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14860 conditions, 5364 events. 2833/5364 cut-off events. For 9062/9066 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 38532 event pairs, 1545 based on Foata normal form. 244/5468 useless extension candidates. Maximal degree in co-relation 13301. Up to 3777 conditions per place. [2025-03-09 01:12:03,112 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 136 selfloop transitions, 27 changer transitions 0/191 dead transitions. [2025-03-09 01:12:03,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 191 transitions, 1156 flow [2025-03-09 01:12:03,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:12:03,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:12:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 379 transitions. [2025-03-09 01:12:03,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5094086021505376 [2025-03-09 01:12:03,113 INFO L175 Difference]: Start difference. First operand has 137 places, 124 transitions, 540 flow. Second operand 6 states and 379 transitions. [2025-03-09 01:12:03,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 191 transitions, 1156 flow [2025-03-09 01:12:03,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 191 transitions, 1131 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 01:12:03,122 INFO L231 Difference]: Finished difference. Result has 141 places, 151 transitions, 788 flow [2025-03-09 01:12:03,122 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=141, PETRI_TRANSITIONS=151} [2025-03-09 01:12:03,123 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-03-09 01:12:03,123 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 151 transitions, 788 flow [2025-03-09 01:12:03,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:03,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:03,123 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:12:03,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-09 01:12:03,323 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 [2025-03-09 01:12:03,324 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:03,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash 352473916, now seen corresponding path program 1 times [2025-03-09 01:12:03,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:03,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694720389] [2025-03-09 01:12:03,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:03,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:03,326 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) [2025-03-09 01:12:03,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 01:12:03,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:12:03,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:12:03,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:03,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:03,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-09 01:12:03,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:03,450 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 [2025-03-09 01:12:03,454 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 [2025-03-09 01:12:03,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:03,576 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 [2025-03-09 01:12:03,589 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-09 01:12:03,589 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 [2025-03-09 01:12:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:03,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:03,605 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694720389] [2025-03-09 01:12:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694720389] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:12:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991556595] [2025-03-09 01:12:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:03,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:12:03,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:03,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:12:03,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:12:03,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:12:03,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 151 transitions, 788 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:03,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:03,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:12:03,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:04,931 INFO L124 PetriNetUnfolderBase]: 2928/5803 cut-off events. [2025-03-09 01:12:04,931 INFO L125 PetriNetUnfolderBase]: For 10436/10442 co-relation queries the response was YES. [2025-03-09 01:12:04,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17915 conditions, 5803 events. 2928/5803 cut-off events. For 10436/10442 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 43961 event pairs, 607 based on Foata normal form. 39/5718 useless extension candidates. Maximal degree in co-relation 16083. Up to 2515 conditions per place. [2025-03-09 01:12:04,962 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 195 selfloop transitions, 24 changer transitions 0/251 dead transitions. [2025-03-09 01:12:04,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 251 transitions, 1673 flow [2025-03-09 01:12:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:12:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:12:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 557 transitions. [2025-03-09 01:12:04,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49910394265232977 [2025-03-09 01:12:04,964 INFO L175 Difference]: Start difference. First operand has 141 places, 151 transitions, 788 flow. Second operand 9 states and 557 transitions. [2025-03-09 01:12:04,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 251 transitions, 1673 flow [2025-03-09 01:12:04,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 251 transitions, 1664 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:12:04,997 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 827 flow [2025-03-09 01:12:04,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=827, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2025-03-09 01:12:04,998 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2025-03-09 01:12:04,999 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 827 flow [2025-03-09 01:12:04,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:04,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:04,999 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:12:05,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-09 01:12:05,199 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 [2025-03-09 01:12:05,200 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:05,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:05,200 INFO L85 PathProgramCache]: Analyzing trace with hash -689377716, now seen corresponding path program 1 times [2025-03-09 01:12:05,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:05,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341249814] [2025-03-09 01:12:05,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:05,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:05,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:05,202 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) [2025-03-09 01:12:05,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 01:12:05,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:12:05,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:12:05,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:05,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:05,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-09 01:12:05,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:05,317 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 [2025-03-09 01:12:05,324 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 [2025-03-09 01:12:05,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:05,427 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 [2025-03-09 01:12:05,436 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-09 01:12:05,437 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 [2025-03-09 01:12:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:05,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:05,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:05,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341249814] [2025-03-09 01:12:05,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341249814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:05,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:05,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:12:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43008046] [2025-03-09 01:12:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:05,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:12:05,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:05,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:12:05,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:12:05,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:12:05,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 827 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:05,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:05,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:12:05,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:06,842 INFO L124 PetriNetUnfolderBase]: 3339/6547 cut-off events. [2025-03-09 01:12:06,842 INFO L125 PetriNetUnfolderBase]: For 14093/14097 co-relation queries the response was YES. [2025-03-09 01:12:06,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20562 conditions, 6547 events. 3339/6547 cut-off events. For 14093/14097 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 51003 event pairs, 887 based on Foata normal form. 76/6532 useless extension candidates. Maximal degree in co-relation 17636. Up to 2361 conditions per place. [2025-03-09 01:12:06,876 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 213 selfloop transitions, 24 changer transitions 0/269 dead transitions. [2025-03-09 01:12:06,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 269 transitions, 1822 flow [2025-03-09 01:12:06,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:12:06,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:12:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 572 transitions. [2025-03-09 01:12:06,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5125448028673835 [2025-03-09 01:12:06,878 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 827 flow. Second operand 9 states and 572 transitions. [2025-03-09 01:12:06,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 269 transitions, 1822 flow [2025-03-09 01:12:06,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 269 transitions, 1770 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-09 01:12:06,907 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 831 flow [2025-03-09 01:12:06,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=831, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2025-03-09 01:12:06,908 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2025-03-09 01:12:06,908 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 831 flow [2025-03-09 01:12:06,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:06,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:06,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:12:06,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-09 01:12:07,108 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 [2025-03-09 01:12:07,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:07,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:07,109 INFO L85 PathProgramCache]: Analyzing trace with hash -916977431, now seen corresponding path program 1 times [2025-03-09 01:12:07,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:07,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986178532] [2025-03-09 01:12:07,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:07,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:07,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:07,111 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) [2025-03-09 01:12:07,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 01:12:07,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 01:12:07,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 01:12:07,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:07,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:07,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 01:12:07,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:07,334 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_91| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_91|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_91| (_ bv0 1)) |c_#valid|))) is different from true [2025-03-09 01:12:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:07,339 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:07,339 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:07,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986178532] [2025-03-09 01:12:07,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986178532] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:07,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:07,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:12:07,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903795700] [2025-03-09 01:12:07,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:07,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:12:07,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:07,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:12:07,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2025-03-09 01:12:07,374 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 124 [2025-03-09 01:12:07,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:07,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:07,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 124 [2025-03-09 01:12:07,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:08,265 INFO L124 PetriNetUnfolderBase]: 3630/6717 cut-off events. [2025-03-09 01:12:08,266 INFO L125 PetriNetUnfolderBase]: For 16259/16261 co-relation queries the response was YES. [2025-03-09 01:12:08,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22018 conditions, 6717 events. 3630/6717 cut-off events. For 16259/16261 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 49698 event pairs, 1548 based on Foata normal form. 1/6615 useless extension candidates. Maximal degree in co-relation 19043. Up to 2794 conditions per place. [2025-03-09 01:12:08,298 INFO L140 encePairwiseOnDemand]: 98/124 looper letters, 138 selfloop transitions, 37 changer transitions 4/197 dead transitions. [2025-03-09 01:12:08,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 197 transitions, 1422 flow [2025-03-09 01:12:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:12:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 01:12:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2025-03-09 01:12:08,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2025-03-09 01:12:08,299 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 831 flow. Second operand 5 states and 250 transitions. [2025-03-09 01:12:08,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 197 transitions, 1422 flow [2025-03-09 01:12:08,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 197 transitions, 1387 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-09 01:12:08,336 INFO L231 Difference]: Finished difference. Result has 144 places, 165 transitions, 1083 flow [2025-03-09 01:12:08,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1083, PETRI_PLACES=144, PETRI_TRANSITIONS=165} [2025-03-09 01:12:08,337 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2025-03-09 01:12:08,337 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 165 transitions, 1083 flow [2025-03-09 01:12:08,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:12:08,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:08,337 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] [2025-03-09 01:12:08,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-09 01:12:08,538 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 [2025-03-09 01:12:08,538 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:08,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:08,538 INFO L85 PathProgramCache]: Analyzing trace with hash 200944306, now seen corresponding path program 1 times [2025-03-09 01:12:08,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:08,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748588191] [2025-03-09 01:12:08,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:08,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:08,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:08,541 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) [2025-03-09 01:12:08,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 01:12:08,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:12:08,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:12:08,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:08,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:08,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 01:12:08,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:08,660 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 [2025-03-09 01:12:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:08,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:08,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:08,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748588191] [2025-03-09 01:12:08,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748588191] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:08,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:08,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:12:08,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543328714] [2025-03-09 01:12:08,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:08,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:12:08,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:08,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:12:08,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:12:08,719 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-09 01:12:08,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 165 transitions, 1083 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2025-03-09 01:12:08,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:08,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-09 01:12:08,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:09,322 INFO L124 PetriNetUnfolderBase]: 3428/6429 cut-off events. [2025-03-09 01:12:09,322 INFO L125 PetriNetUnfolderBase]: For 19210/19270 co-relation queries the response was YES. [2025-03-09 01:12:09,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24906 conditions, 6429 events. 3428/6429 cut-off events. For 19210/19270 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 47451 event pairs, 1989 based on Foata normal form. 25/6327 useless extension candidates. Maximal degree in co-relation 21731. Up to 5351 conditions per place. [2025-03-09 01:12:09,354 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 140 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2025-03-09 01:12:09,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 175 transitions, 1425 flow [2025-03-09 01:12:09,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:12:09,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:12:09,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2025-03-09 01:12:09,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2025-03-09 01:12:09,355 INFO L175 Difference]: Start difference. First operand has 144 places, 165 transitions, 1083 flow. Second operand 3 states and 201 transitions. [2025-03-09 01:12:09,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 175 transitions, 1425 flow [2025-03-09 01:12:09,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 175 transitions, 1344 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-09 01:12:09,399 INFO L231 Difference]: Finished difference. Result has 140 places, 163 transitions, 1008 flow [2025-03-09 01:12:09,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1008, PETRI_PLACES=140, PETRI_TRANSITIONS=163} [2025-03-09 01:12:09,400 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 22 predicate places. [2025-03-09 01:12:09,400 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 163 transitions, 1008 flow [2025-03-09 01:12:09,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2025-03-09 01:12:09,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:09,400 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] [2025-03-09 01:12:09,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-09 01:12:09,601 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 [2025-03-09 01:12:09,601 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 200944305, now seen corresponding path program 1 times [2025-03-09 01:12:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:09,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411003442] [2025-03-09 01:12:09,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:09,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:09,603 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) [2025-03-09 01:12:09,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 01:12:09,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:12:09,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:12:09,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:09,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:09,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 01:12:09,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:09,728 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 [2025-03-09 01:12:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:09,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:09,732 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:09,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411003442] [2025-03-09 01:12:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411003442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:12:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216741270] [2025-03-09 01:12:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:12:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:09,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:12:09,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:12:09,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-09 01:12:09,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 163 transitions, 1008 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2025-03-09 01:12:09,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:09,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-09 01:12:09,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:10,381 INFO L124 PetriNetUnfolderBase]: 3428/6420 cut-off events. [2025-03-09 01:12:10,381 INFO L125 PetriNetUnfolderBase]: For 17396/17456 co-relation queries the response was YES. [2025-03-09 01:12:10,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24527 conditions, 6420 events. 3428/6420 cut-off events. For 17396/17456 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 47343 event pairs, 1989 based on Foata normal form. 25/6318 useless extension candidates. Maximal degree in co-relation 23138. Up to 5351 conditions per place. [2025-03-09 01:12:10,419 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 140 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2025-03-09 01:12:10,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 173 transitions, 1350 flow [2025-03-09 01:12:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:12:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:12:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2025-03-09 01:12:10,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2025-03-09 01:12:10,420 INFO L175 Difference]: Start difference. First operand has 140 places, 163 transitions, 1008 flow. Second operand 3 states and 201 transitions. [2025-03-09 01:12:10,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 173 transitions, 1350 flow [2025-03-09 01:12:10,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 173 transitions, 1340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:12:10,473 INFO L231 Difference]: Finished difference. Result has 138 places, 161 transitions, 1004 flow [2025-03-09 01:12:10,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1004, PETRI_PLACES=138, PETRI_TRANSITIONS=161} [2025-03-09 01:12:10,473 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2025-03-09 01:12:10,473 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 161 transitions, 1004 flow [2025-03-09 01:12:10,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2025-03-09 01:12:10,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:10,474 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:12:10,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-09 01:12:10,674 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 [2025-03-09 01:12:10,674 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:10,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:10,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1934306716, now seen corresponding path program 1 times [2025-03-09 01:12:10,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:10,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027163330] [2025-03-09 01:12:10,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:10,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:10,678 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) [2025-03-09 01:12:10,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 01:12:10,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 01:12:10,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 01:12:10,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:10,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:10,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 01:12:10,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:10,812 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 [2025-03-09 01:12:10,819 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 [2025-03-09 01:12:10,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:10,925 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 [2025-03-09 01:12:10,934 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-09 01:12:10,934 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 [2025-03-09 01:12:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:10,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:10,946 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:10,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027163330] [2025-03-09 01:12:10,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027163330] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:10,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:10,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:12:10,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716266581] [2025-03-09 01:12:10,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:10,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:12:10,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:10,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:12:10,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:12:11,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2025-03-09 01:12:11,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 161 transitions, 1004 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-09 01:12:11,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:11,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2025-03-09 01:12:11,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:11,848 INFO L124 PetriNetUnfolderBase]: 3400/6368 cut-off events. [2025-03-09 01:12:11,848 INFO L125 PetriNetUnfolderBase]: For 17480/17540 co-relation queries the response was YES. [2025-03-09 01:12:11,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24382 conditions, 6368 events. 3400/6368 cut-off events. For 17480/17540 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 47311 event pairs, 1740 based on Foata normal form. 24/6295 useless extension candidates. Maximal degree in co-relation 23146. Up to 3047 conditions per place. [2025-03-09 01:12:11,871 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 146 selfloop transitions, 16 changer transitions 0/183 dead transitions. [2025-03-09 01:12:11,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 183 transitions, 1440 flow [2025-03-09 01:12:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:12:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:12:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2025-03-09 01:12:11,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45564516129032256 [2025-03-09 01:12:11,873 INFO L175 Difference]: Start difference. First operand has 138 places, 161 transitions, 1004 flow. Second operand 4 states and 226 transitions. [2025-03-09 01:12:11,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 183 transitions, 1440 flow [2025-03-09 01:12:11,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 183 transitions, 1430 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:12:11,908 INFO L231 Difference]: Finished difference. Result has 135 places, 157 transitions, 1018 flow [2025-03-09 01:12:11,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1018, PETRI_PLACES=135, PETRI_TRANSITIONS=157} [2025-03-09 01:12:11,909 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 17 predicate places. [2025-03-09 01:12:11,909 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 157 transitions, 1018 flow [2025-03-09 01:12:11,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-09 01:12:11,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:11,909 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] [2025-03-09 01:12:11,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-09 01:12:12,109 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 [2025-03-09 01:12:12,110 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:12,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:12,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1934306715, now seen corresponding path program 1 times [2025-03-09 01:12:12,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870250639] [2025-03-09 01:12:12,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:12,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:12,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:12,112 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) [2025-03-09 01:12:12,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 01:12:12,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 01:12:12,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 01:12:12,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:12,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:12,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 01:12:12,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:12,241 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 [2025-03-09 01:12:12,285 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-09 01:12:12,285 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 [2025-03-09 01:12:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:12,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:12,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:12,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870250639] [2025-03-09 01:12:12,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870250639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:12,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:12,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:12:12,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214882046] [2025-03-09 01:12:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:12,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:12:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:12,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:12:12,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:12:12,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2025-03-09 01:12:12,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 157 transitions, 1018 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-03-09 01:12:12,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:12,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2025-03-09 01:12:12,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:13,190 INFO L124 PetriNetUnfolderBase]: 3567/6589 cut-off events. [2025-03-09 01:12:13,190 INFO L125 PetriNetUnfolderBase]: For 19314/19340 co-relation queries the response was YES. [2025-03-09 01:12:13,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25378 conditions, 6589 events. 3567/6589 cut-off events. For 19314/19340 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 47910 event pairs, 1868 based on Foata normal form. 9/6570 useless extension candidates. Maximal degree in co-relation 22148. Up to 3131 conditions per place. [2025-03-09 01:12:13,233 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 133 selfloop transitions, 18 changer transitions 0/175 dead transitions. [2025-03-09 01:12:13,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 175 transitions, 1412 flow [2025-03-09 01:12:13,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:12:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:12:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 229 transitions. [2025-03-09 01:12:13,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46169354838709675 [2025-03-09 01:12:13,234 INFO L175 Difference]: Start difference. First operand has 135 places, 157 transitions, 1018 flow. Second operand 4 states and 229 transitions. [2025-03-09 01:12:13,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 175 transitions, 1412 flow [2025-03-09 01:12:13,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 175 transitions, 1380 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 01:12:13,287 INFO L231 Difference]: Finished difference. Result has 131 places, 153 transitions, 1014 flow [2025-03-09 01:12:13,287 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1014, PETRI_PLACES=131, PETRI_TRANSITIONS=153} [2025-03-09 01:12:13,288 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2025-03-09 01:12:13,288 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 153 transitions, 1014 flow [2025-03-09 01:12:13,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-03-09 01:12:13,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:13,288 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] [2025-03-09 01:12:13,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-09 01:12:13,489 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 [2025-03-09 01:12:13,489 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:13,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:13,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109736, now seen corresponding path program 1 times [2025-03-09 01:12:13,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:13,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503588090] [2025-03-09 01:12:13,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:13,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:13,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:13,492 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) [2025-03-09 01:12:13,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-09 01:12:13,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 01:12:13,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 01:12:13,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:13,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:13,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 01:12:13,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:13,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:13,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:13,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503588090] [2025-03-09 01:12:13,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503588090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:13,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:13,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:12:13,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780375455] [2025-03-09 01:12:13,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:13,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:12:13,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:13,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:12:13,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:12:13,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-03-09 01:12:13,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 153 transitions, 1014 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-09 01:12:13,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:13,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-03-09 01:12:13,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:13,909 INFO L124 PetriNetUnfolderBase]: 455/835 cut-off events. [2025-03-09 01:12:13,909 INFO L125 PetriNetUnfolderBase]: For 1429/1429 co-relation queries the response was YES. [2025-03-09 01:12:13,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2942 conditions, 835 events. 455/835 cut-off events. For 1429/1429 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3415 event pairs, 63 based on Foata normal form. 64/881 useless extension candidates. Maximal degree in co-relation 2919. Up to 484 conditions per place. [2025-03-09 01:12:13,913 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 75 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2025-03-09 01:12:13,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 103 transitions, 627 flow [2025-03-09 01:12:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:12:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:12:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2025-03-09 01:12:13,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4879032258064516 [2025-03-09 01:12:13,914 INFO L175 Difference]: Start difference. First operand has 131 places, 153 transitions, 1014 flow. Second operand 4 states and 242 transitions. [2025-03-09 01:12:13,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 103 transitions, 627 flow [2025-03-09 01:12:13,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 103 transitions, 478 flow, removed 25 selfloop flow, removed 26 redundant places. [2025-03-09 01:12:13,920 INFO L231 Difference]: Finished difference. Result has 89 places, 77 transitions, 234 flow [2025-03-09 01:12:13,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=89, PETRI_TRANSITIONS=77} [2025-03-09 01:12:13,920 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -29 predicate places. [2025-03-09 01:12:13,920 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 234 flow [2025-03-09 01:12:13,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-09 01:12:13,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:13,921 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] [2025-03-09 01:12:13,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-09 01:12:14,121 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 [2025-03-09 01:12:14,121 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:14,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1826183711, now seen corresponding path program 1 times [2025-03-09 01:12:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:14,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417727895] [2025-03-09 01:12:14,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:14,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:14,124 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) [2025-03-09 01:12:14,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 01:12:14,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 01:12:14,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 01:12:14,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:14,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:14,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 01:12:14,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:14,272 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:14,272 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:14,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-09 01:12:14,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:14,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:14,299 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:14,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-09 01:12:14,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 83 [2025-03-09 01:12:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:14,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:14,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:14,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417727895] [2025-03-09 01:12:14,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417727895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:14,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:14,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:12:14,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318123723] [2025-03-09 01:12:14,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:14,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:12:14,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:14,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:12:14,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:12:14,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-09 01:12:14,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2025-03-09 01:12:14,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:14,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-09 01:12:14,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:14,883 INFO L124 PetriNetUnfolderBase]: 476/893 cut-off events. [2025-03-09 01:12:14,883 INFO L125 PetriNetUnfolderBase]: For 719/719 co-relation queries the response was YES. [2025-03-09 01:12:14,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2485 conditions, 893 events. 476/893 cut-off events. For 719/719 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3507 event pairs, 382 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 2475. Up to 779 conditions per place. [2025-03-09 01:12:14,886 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 71 selfloop transitions, 9 changer transitions 0/99 dead transitions. [2025-03-09 01:12:14,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 465 flow [2025-03-09 01:12:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:12:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:12:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2025-03-09 01:12:14,887 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4657258064516129 [2025-03-09 01:12:14,887 INFO L175 Difference]: Start difference. First operand has 89 places, 77 transitions, 234 flow. Second operand 4 states and 231 transitions. [2025-03-09 01:12:14,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 465 flow [2025-03-09 01:12:14,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 99 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 01:12:14,889 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 298 flow [2025-03-09 01:12:14,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2025-03-09 01:12:14,889 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -26 predicate places. [2025-03-09 01:12:14,889 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 298 flow [2025-03-09 01:12:14,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2025-03-09 01:12:14,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:14,889 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:12:14,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-09 01:12:15,090 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 [2025-03-09 01:12:15,090 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:15,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1563466557, now seen corresponding path program 1 times [2025-03-09 01:12:15,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:15,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552300135] [2025-03-09 01:12:15,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:15,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:15,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:15,094 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) [2025-03-09 01:12:15,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 01:12:15,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 01:12:15,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 01:12:15,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:15,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:15,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 01:12:15,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:15,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:15,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:15,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:12:15,246 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:15,246 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-09 01:12:15,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-09 01:12:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:15,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:15,272 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:15,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552300135] [2025-03-09 01:12:15,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552300135] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:15,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:15,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:12:15,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042804609] [2025-03-09 01:12:15,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:15,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:12:15,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:15,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:12:15,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:12:15,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-09 01:12:15,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-03-09 01:12:15,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:15,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-09 01:12:15,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:15,613 INFO L124 PetriNetUnfolderBase]: 481/911 cut-off events. [2025-03-09 01:12:15,613 INFO L125 PetriNetUnfolderBase]: For 655/655 co-relation queries the response was YES. [2025-03-09 01:12:15,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 911 events. 481/911 cut-off events. For 655/655 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3619 event pairs, 395 based on Foata normal form. 13/920 useless extension candidates. Maximal degree in co-relation 2601. Up to 801 conditions per place. [2025-03-09 01:12:15,616 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 69 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2025-03-09 01:12:15,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 98 transitions, 517 flow [2025-03-09 01:12:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:12:15,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:12:15,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2025-03-09 01:12:15,617 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48655913978494625 [2025-03-09 01:12:15,618 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 298 flow. Second operand 3 states and 181 transitions. [2025-03-09 01:12:15,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 98 transitions, 517 flow [2025-03-09 01:12:15,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 98 transitions, 507 flow, removed 5 selfloop flow, removed 0 redundant places. [2025-03-09 01:12:15,620 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 370 flow [2025-03-09 01:12:15,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2025-03-09 01:12:15,620 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -22 predicate places. [2025-03-09 01:12:15,620 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 370 flow [2025-03-09 01:12:15,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-03-09 01:12:15,620 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:15,620 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] [2025-03-09 01:12:15,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-09 01:12:15,821 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 [2025-03-09 01:12:15,821 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:15,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash -783297669, now seen corresponding path program 1 times [2025-03-09 01:12:15,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:15,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524715524] [2025-03-09 01:12:15,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:12:15,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:15,824 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) [2025-03-09 01:12:15,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-09 01:12:15,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 01:12:15,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 01:12:15,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:12:15,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:15,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 01:12:15,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:16,054 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 11 treesize of output 9 [2025-03-09 01:12:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:16,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:16,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:16,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524715524] [2025-03-09 01:12:16,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524715524] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:16,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:16,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:12:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081876450] [2025-03-09 01:12:16,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:16,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 01:12:16,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:16,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 01:12:16,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 01:12:16,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:12:16,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 370 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:16,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:16,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:12:16,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:17,137 INFO L124 PetriNetUnfolderBase]: 1115/2088 cut-off events. [2025-03-09 01:12:17,137 INFO L125 PetriNetUnfolderBase]: For 2051/2051 co-relation queries the response was YES. [2025-03-09 01:12:17,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6149 conditions, 2088 events. 1115/2088 cut-off events. For 2051/2051 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11384 event pairs, 122 based on Foata normal form. 16/2100 useless extension candidates. Maximal degree in co-relation 6135. Up to 559 conditions per place. [2025-03-09 01:12:17,144 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 171 selfloop transitions, 24 changer transitions 0/217 dead transitions. [2025-03-09 01:12:17,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 217 transitions, 1325 flow [2025-03-09 01:12:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 01:12:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-09 01:12:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 631 transitions. [2025-03-09 01:12:17,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4626099706744868 [2025-03-09 01:12:17,146 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 370 flow. Second operand 11 states and 631 transitions. [2025-03-09 01:12:17,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 217 transitions, 1325 flow [2025-03-09 01:12:17,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 217 transitions, 1281 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-09 01:12:17,152 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 537 flow [2025-03-09 01:12:17,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=537, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2025-03-09 01:12:17,153 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2025-03-09 01:12:17,153 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 537 flow [2025-03-09 01:12:17,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:17,153 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:17,154 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] [2025-03-09 01:12:17,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-09 01:12:17,354 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 [2025-03-09 01:12:17,354 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:17,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash -468379989, now seen corresponding path program 2 times [2025-03-09 01:12:17,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:17,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284449104] [2025-03-09 01:12:17,356 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:12:17,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:17,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:17,359 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) [2025-03-09 01:12:17,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-09 01:12:17,476 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-03-09 01:12:17,512 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 01:12:17,512 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:12:17,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:17,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 01:12:17,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:17,576 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 11 treesize of output 9 [2025-03-09 01:12:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:17,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:17,603 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:17,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284449104] [2025-03-09 01:12:17,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284449104] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:17,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:12:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263447268] [2025-03-09 01:12:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:17,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 01:12:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:17,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 01:12:17,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 01:12:17,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:12:17,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 537 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:17,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:17,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:12:17,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:18,465 INFO L124 PetriNetUnfolderBase]: 1315/2492 cut-off events. [2025-03-09 01:12:18,466 INFO L125 PetriNetUnfolderBase]: For 5720/5720 co-relation queries the response was YES. [2025-03-09 01:12:18,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8859 conditions, 2492 events. 1315/2492 cut-off events. For 5720/5720 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 14295 event pairs, 90 based on Foata normal form. 16/2504 useless extension candidates. Maximal degree in co-relation 8838. Up to 874 conditions per place. [2025-03-09 01:12:18,476 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 155 selfloop transitions, 39 changer transitions 0/216 dead transitions. [2025-03-09 01:12:18,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 216 transitions, 1564 flow [2025-03-09 01:12:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 01:12:18,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-09 01:12:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 651 transitions. [2025-03-09 01:12:18,478 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4375 [2025-03-09 01:12:18,478 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 537 flow. Second operand 12 states and 651 transitions. [2025-03-09 01:12:18,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 216 transitions, 1564 flow [2025-03-09 01:12:18,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 216 transitions, 1527 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-03-09 01:12:18,486 INFO L231 Difference]: Finished difference. Result has 122 places, 125 transitions, 778 flow [2025-03-09 01:12:18,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=778, PETRI_PLACES=122, PETRI_TRANSITIONS=125} [2025-03-09 01:12:18,486 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 4 predicate places. [2025-03-09 01:12:18,486 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 125 transitions, 778 flow [2025-03-09 01:12:18,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:18,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:18,486 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] [2025-03-09 01:12:18,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-09 01:12:18,687 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 [2025-03-09 01:12:18,687 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:18,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:18,687 INFO L85 PathProgramCache]: Analyzing trace with hash -870546645, now seen corresponding path program 3 times [2025-03-09 01:12:18,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:18,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639203147] [2025-03-09 01:12:18,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:12:18,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:18,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:18,690 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) [2025-03-09 01:12:18,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-09 01:12:18,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 1 equivalence classes. [2025-03-09 01:12:18,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 01:12:18,859 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 01:12:18,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:18,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 01:12:18,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:18,908 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 11 treesize of output 9 [2025-03-09 01:12:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:18,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:18,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:18,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639203147] [2025-03-09 01:12:18,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639203147] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:18,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:18,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:12:18,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025062815] [2025-03-09 01:12:18,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:18,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 01:12:18,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:18,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 01:12:18,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 01:12:18,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:12:18,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 125 transitions, 778 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:18,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:18,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:12:18,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:19,799 INFO L124 PetriNetUnfolderBase]: 1211/2336 cut-off events. [2025-03-09 01:12:19,799 INFO L125 PetriNetUnfolderBase]: For 7454/7454 co-relation queries the response was YES. [2025-03-09 01:12:19,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9099 conditions, 2336 events. 1211/2336 cut-off events. For 7454/7454 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 13309 event pairs, 162 based on Foata normal form. 16/2348 useless extension candidates. Maximal degree in co-relation 9074. Up to 1462 conditions per place. [2025-03-09 01:12:19,810 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 124 selfloop transitions, 40 changer transitions 0/186 dead transitions. [2025-03-09 01:12:19,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 186 transitions, 1498 flow [2025-03-09 01:12:19,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:12:19,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 01:12:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 541 transitions. [2025-03-09 01:12:19,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43629032258064515 [2025-03-09 01:12:19,811 INFO L175 Difference]: Start difference. First operand has 122 places, 125 transitions, 778 flow. Second operand 10 states and 541 transitions. [2025-03-09 01:12:19,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 186 transitions, 1498 flow [2025-03-09 01:12:19,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 186 transitions, 1415 flow, removed 16 selfloop flow, removed 6 redundant places. [2025-03-09 01:12:19,822 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 1055 flow [2025-03-09 01:12:19,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1055, PETRI_PLACES=131, PETRI_TRANSITIONS=142} [2025-03-09 01:12:19,823 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2025-03-09 01:12:19,823 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 1055 flow [2025-03-09 01:12:19,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:19,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:19,823 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] [2025-03-09 01:12:19,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-09 01:12:20,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:20,024 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:20,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:20,024 INFO L85 PathProgramCache]: Analyzing trace with hash 427612393, now seen corresponding path program 4 times [2025-03-09 01:12:20,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:20,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694324478] [2025-03-09 01:12:20,025 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 01:12:20,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:20,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:20,027 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:12:20,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-09 01:12:20,146 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 28 statements into 2 equivalence classes. [2025-03-09 01:12:20,184 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 01:12:20,184 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 01:12:20,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:12:20,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 01:12:20,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:12:20,256 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 11 treesize of output 9 [2025-03-09 01:12:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:12:20,266 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:12:20,266 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 01:12:20,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694324478] [2025-03-09 01:12:20,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694324478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:12:20,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:12:20,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:12:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831140800] [2025-03-09 01:12:20,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:12:20,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 01:12:20,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 01:12:20,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 01:12:20,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 01:12:20,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-09 01:12:20,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 1055 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:20,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:12:20,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-09 01:12:20,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:12:21,269 INFO L124 PetriNetUnfolderBase]: 1430/2829 cut-off events. [2025-03-09 01:12:21,269 INFO L125 PetriNetUnfolderBase]: For 10372/10372 co-relation queries the response was YES. [2025-03-09 01:12:21,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11573 conditions, 2829 events. 1430/2829 cut-off events. For 10372/10372 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 17135 event pairs, 174 based on Foata normal form. 32/2853 useless extension candidates. Maximal degree in co-relation 11542. Up to 1382 conditions per place. [2025-03-09 01:12:21,279 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 199 selfloop transitions, 50 changer transitions 0/271 dead transitions. [2025-03-09 01:12:21,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 271 transitions, 2349 flow [2025-03-09 01:12:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 01:12:21,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-09 01:12:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 680 transitions. [2025-03-09 01:12:21,280 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45698924731182794 [2025-03-09 01:12:21,280 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 1055 flow. Second operand 12 states and 680 transitions. [2025-03-09 01:12:21,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 271 transitions, 2349 flow [2025-03-09 01:12:21,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 271 transitions, 2231 flow, removed 54 selfloop flow, removed 2 redundant places. [2025-03-09 01:12:21,301 INFO L231 Difference]: Finished difference. Result has 146 places, 156 transitions, 1325 flow [2025-03-09 01:12:21,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1325, PETRI_PLACES=146, PETRI_TRANSITIONS=156} [2025-03-09 01:12:21,301 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 28 predicate places. [2025-03-09 01:12:21,301 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 156 transitions, 1325 flow [2025-03-09 01:12:21,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-09 01:12:21,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:12:21,302 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] [2025-03-09 01:12:21,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-09 01:12:21,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:21,502 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-09 01:12:21,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:12:21,503 INFO L85 PathProgramCache]: Analyzing trace with hash -97398903, now seen corresponding path program 5 times [2025-03-09 01:12:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 01:12:21,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38662050] [2025-03-09 01:12:21,503 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 01:12:21,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:12:21,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:12:21,505 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:12:21,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-09 01:12:21,629 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-03-09 01:12:37,828 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 01:12:37,828 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:12:37,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:12:37,828 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 01:12:37,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 01:13:09,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 01:13:09,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:13:09,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:13:09,686 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-09 01:13:09,686 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 01:13:09,687 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2025-03-09 01:13:09,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK (32 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2025-03-09 01:13:09,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2025-03-09 01:13:09,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2025-03-09 01:13:09,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2025-03-09 01:13:09,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2025-03-09 01:13:09,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2025-03-09 01:13:09,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2025-03-09 01:13:09,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2025-03-09 01:13:09,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2025-03-09 01:13:09,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-09 01:13:09,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:13:09,892 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:13:09,928 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 01:13:09,928 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:13:09,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:13:09 BasicIcfg [2025-03-09 01:13:09,932 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:13:09,932 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:13:09,932 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:13:09,932 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:13:09,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:11:47" (3/4) ... [2025-03-09 01:13:09,934 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 01:13:09,934 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:13:09,935 INFO L158 Benchmark]: Toolchain (without parser) took 83839.13ms. Allocated memory was 83.9MB in the beginning and 1.0GB in the end (delta: 922.7MB). Free memory was 56.4MB in the beginning and 820.4MB in the end (delta: -763.9MB). Peak memory consumption was 165.0MB. Max. memory is 16.1GB. [2025-03-09 01:13:09,936 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 83.9MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 37.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:13:09,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.47ms. Allocated memory is still 83.9MB. Free memory was 56.4MB in the beginning and 50.6MB in the end (delta: 5.8MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2025-03-09 01:13:09,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.99ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 47.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:13:09,937 INFO L158 Benchmark]: Boogie Preprocessor took 71.93ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 43.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:13:09,937 INFO L158 Benchmark]: IcfgBuilder took 888.09ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 39.8MB in the end (delta: 3.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 01:13:09,937 INFO L158 Benchmark]: TraceAbstraction took 82313.37ms. Allocated memory was 83.9MB in the beginning and 1.0GB in the end (delta: 922.7MB). Free memory was 39.3MB in the beginning and 820.4MB in the end (delta: -781.1MB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. [2025-03-09 01:13:09,938 INFO L158 Benchmark]: Witness Printer took 2.46ms. Allocated memory is still 1.0GB. Free memory was 820.4MB in the beginning and 820.4MB in the end (delta: 26.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:13:09,939 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 83.9MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 37.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.47ms. Allocated memory is still 83.9MB. Free memory was 56.4MB in the beginning and 50.6MB in the end (delta: 5.8MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.99ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 47.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.93ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 43.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 888.09ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 39.8MB in the end (delta: 3.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 82313.37ms. Allocated memory was 83.9MB in the beginning and 1.0GB in the end (delta: 922.7MB). Free memory was 39.3MB in the beginning and 820.4MB in the end (delta: -781.1MB). Peak memory consumption was 137.3MB. Max. memory is 16.1GB. * Witness Printer took 2.46ms. Allocated memory is still 1.0GB. Free memory was 820.4MB in the beginning and 820.4MB in the end (delta: 26.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, d={2097152:24}, data={2097152:0}, res=0, t1=8388607, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3907] 1 data->shared.a = 1 VAL [\old(arg)={2097152:24}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, t1=8388607, t2=8388608] [L3910] EXPR 1 data->shared.b [L3910] 1 int lb = data->shared.b; [L3913] 1 data->shared.b = lb + 1 VAL [\old(arg)={2097152:24}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3916] 1 return 0; [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result={0:0}, arg={2097152:24}, d={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, res=0, t1=8388607, t2=8388608] [L3931] 0 return 0; VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result=0, \result={0:0}, arg={2097152:24}, d={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, res=0, t1=8388607, t2=8388608] [L3902] 2 struct device *dev = (struct device*)arg; [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result={0:0}, arg={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, status={524288:0}, t1=8388607, t2=8388608] [L3938] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result={0:0}, arg={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, status={524288:0}, t1=8388607, t2=8388608] [L3941] 0 data->shared.a = 3 VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3944] 0 data->shared.b = 3 VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3907] 2 data->shared.a = 1 VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3947] EXPR 0 data->shared.a [L3947] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_5-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_5-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 131 locations, 142 edges, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 82.2s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3367 SdHoareTripleChecker+Valid, 13.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2804 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 11.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 151 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7578 IncrementalHoareTripleChecker+Invalid, 7845 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 141 mSDtfsCounter, 7578 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1325occurred in iteration=24, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 16.8s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 379 ConstructedInterpolants, 2 QuantifiedInterpolants, 2451 SizeOfPredicates, 172 NumberOfNonLiveVariables, 3747 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-09 01:13:09,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample