./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_4-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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:41,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:41,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:58:41,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:41,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:41,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:41,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:41,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:41,809 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:41,810 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:41,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:41,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:41,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:41,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:41,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:41,811 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:41,812 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:41,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:41,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:41,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:41,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:41,813 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 -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2025-03-04 09:58:42,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:42,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:42,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:42,026 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:42,026 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:42,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-03-04 09:58:43,214 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea87e67e0/2b6a442f43864459a84f62857a0e15d9/FLAGf15512c26 [2025-03-04 09:58:43,639 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:43,640 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-03-04 09:58:43,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea87e67e0/2b6a442f43864459a84f62857a0e15d9/FLAGf15512c26 [2025-03-04 09:58:43,689 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea87e67e0/2b6a442f43864459a84f62857a0e15d9 [2025-03-04 09:58:43,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:43,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:43,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:43,695 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:43,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:43,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:43" (1/1) ... [2025-03-04 09:58:43,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632f32bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:43, skipping insertion in model container [2025-03-04 09:58:43,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:43" (1/1) ... [2025-03-04 09:58:43,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:43,987 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:43,996 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:44,003 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:44,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:44,026 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-03-04 09:58:44,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bee35d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:44, skipping insertion in model container [2025-03-04 09:58:44,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:44,028 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 09:58:44,030 INFO L158 Benchmark]: Toolchain (without parser) took 335.91ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 112.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:44,032 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:44,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.73ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 112.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:44,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.73ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 112.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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_4-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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:45,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:45,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-04 09:58:45,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:45,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:45,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:45,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:45,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:45,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:45,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:45,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:45,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:45,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:45,848 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:45,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:45,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:45,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:45,851 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 -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2025-03-04 09:58:46,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:46,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:46,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:46,095 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:46,095 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:46,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-03-04 09:58:47,290 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e74d898/b9850f3b6335403e8442c4d9606a82c9/FLAG98012a3d6 [2025-03-04 09:58:47,583 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:47,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-03-04 09:58:47,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e74d898/b9850f3b6335403e8442c4d9606a82c9/FLAG98012a3d6 [2025-03-04 09:58:47,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e74d898/b9850f3b6335403e8442c4d9606a82c9 [2025-03-04 09:58:47,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:47,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:47,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:47,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:47,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:47,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:47" (1/1) ... [2025-03-04 09:58:47,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2201fb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:47, skipping insertion in model container [2025-03-04 09:58:47,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:47" (1/1) ... [2025-03-04 09:58:47,707 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:47,947 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:47,958 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:47,966 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:47,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:47,999 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 09:58:48,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:48,057 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:48,062 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:48,065 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:48,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:48,073 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:48,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:48,172 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:48,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48 WrapperNode [2025-03-04 09:58:48,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:48,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:48,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:48,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:48,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,218 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2025-03-04 09:58:48,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:48,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:48,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:48,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:48,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,229 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,245 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2025-03-04 09:58:48,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,255 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:48,268 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:48,268 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:48,268 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:48,269 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (1/1) ... [2025-03-04 09:58:48,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:48,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:48,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:58:48,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-04 09:58:48,322 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 09:58:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 09:58:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 09:58:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:48,325 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:48,526 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:48,527 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:48,962 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:48,963 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:49,130 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:49,132 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:49,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:49 BoogieIcfgContainer [2025-03-04 09:58:49,133 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:49,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:49,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:49,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:49,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:47" (1/3) ... [2025-03-04 09:58:49,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9336e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:49, skipping insertion in model container [2025-03-04 09:58:49,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:48" (2/3) ... [2025-03-04 09:58:49,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9336e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:49, skipping insertion in model container [2025-03-04 09:58:49,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:49" (3/3) ... [2025-03-04 09:58:49,140 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2025-03-04 09:58:49,153 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:49,154 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_4-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2025-03-04 09:58:49,154 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:49,204 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 09:58:49,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2025-03-04 09:58:49,300 INFO L124 PetriNetUnfolderBase]: 14/171 cut-off events. [2025-03-04 09:58:49,302 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 09:58:49,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 14/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 700 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2025-03-04 09:58:49,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2025-03-04 09:58:49,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2025-03-04 09:58:49,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:49,323 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;@395e16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:49,323 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-03-04 09:58:49,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:49,328 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-03-04 09:58:49,328 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:49,329 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:49,329 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 09:58:49,330 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)] === [2025-03-04 09:58:49,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:49,335 INFO L85 PathProgramCache]: Analyzing trace with hash 555873, now seen corresponding path program 1 times [2025-03-04 09:58:49,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:49,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477687064] [2025-03-04 09:58:49,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:49,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:49,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:49,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:49,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 09:58:49,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:58:49,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:58:49,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:49,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:49,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 09:58:49,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:49,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 09:58:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:49,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:49,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:49,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477687064] [2025-03-04 09:58:49,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477687064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:49,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:49,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:49,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559459900] [2025-03-04 09:58:49,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:49,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:49,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:49,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:49,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:49,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:58:49,594 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) [2025-03-04 09:58:49,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:49,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:58:49,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:51,302 INFO L124 PetriNetUnfolderBase]: 9323/18312 cut-off events. [2025-03-04 09:58:51,303 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-03-04 09:58:51,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 18312 events. 9323/18312 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177782 event pairs, 559 based on Foata normal form. 792/11540 useless extension candidates. Maximal degree in co-relation 32603. Up to 13528 conditions per place. [2025-03-04 09:58:51,403 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2025-03-04 09:58:51,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2025-03-04 09:58:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-03-04 09:58:51,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2025-03-04 09:58:51,413 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2025-03-04 09:58:51,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2025-03-04 09:58:51,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:51,425 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2025-03-04 09:58:51,427 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} [2025-03-04 09:58:51,429 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2025-03-04 09:58:51,430 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2025-03-04 09:58:51,430 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) [2025-03-04 09:58:51,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:51,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 09:58:51,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 09:58:51,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:51,631 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)] === [2025-03-04 09:58:51,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:51,631 INFO L85 PathProgramCache]: Analyzing trace with hash 555874, now seen corresponding path program 1 times [2025-03-04 09:58:51,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:51,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170852941] [2025-03-04 09:58:51,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:51,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:51,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:51,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:51,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 09:58:51,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:58:51,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:58:51,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:51,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:51,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:58:51,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:51,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:58:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:51,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:51,756 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:51,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170852941] [2025-03-04 09:58:51,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170852941] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:51,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:51,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:51,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371521659] [2025-03-04 09:58:51,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:51,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:51,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:51,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:51,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:51,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-04 09:58:51,820 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) [2025-03-04 09:58:51,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:51,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-04 09:58:51,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:53,268 INFO L124 PetriNetUnfolderBase]: 9323/18310 cut-off events. [2025-03-04 09:58:53,268 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-03-04 09:58:53,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33036 conditions, 18310 events. 9323/18310 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177667 event pairs, 559 based on Foata normal form. 1/10747 useless extension candidates. Maximal degree in co-relation 1995. Up to 13528 conditions per place. [2025-03-04 09:58:53,337 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2025-03-04 09:58:53,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2025-03-04 09:58:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2025-03-04 09:58:53,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2025-03-04 09:58:53,339 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2025-03-04 09:58:53,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2025-03-04 09:58:53,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:53,344 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2025-03-04 09:58:53,344 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} [2025-03-04 09:58:53,345 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-03-04 09:58:53,345 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2025-03-04 09:58:53,345 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) [2025-03-04 09:58:53,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:53,346 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 09:58:53,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 09:58:53,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:53,550 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)] === [2025-03-04 09:58:53,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:53,551 INFO L85 PathProgramCache]: Analyzing trace with hash 17230621, now seen corresponding path program 1 times [2025-03-04 09:58:53,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:53,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67381617] [2025-03-04 09:58:53,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:53,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:53,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:53,554 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:53,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 09:58:53,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 09:58:53,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 09:58:53,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:53,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:53,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:58:53,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:53,654 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:53,654 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:53,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67381617] [2025-03-04 09:58:53,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67381617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:53,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:53,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:53,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556873501] [2025-03-04 09:58:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:53,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:53,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:53,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:53,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:53,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-03-04 09:58:53,655 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) [2025-03-04 09:58:53,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:53,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-03-04 09:58:53,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:54,493 INFO L124 PetriNetUnfolderBase]: 9322/15614 cut-off events. [2025-03-04 09:58:54,493 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2025-03-04 09:58:54,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30340 conditions, 15614 events. 9322/15614 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 119425 event pairs, 8957 based on Foata normal form. 1/9011 useless extension candidates. Maximal degree in co-relation 16169. Up to 13949 conditions per place. [2025-03-04 09:58:54,539 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2025-03-04 09:58:54,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 460 flow [2025-03-04 09:58:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:54,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2025-03-04 09:58:54,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2025-03-04 09:58:54,542 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 222 transitions. [2025-03-04 09:58:54,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 460 flow [2025-03-04 09:58:54,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 131 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:54,545 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 218 flow [2025-03-04 09:58:54,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2025-03-04 09:58:54,545 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-03-04 09:58:54,546 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 218 flow [2025-03-04 09:58:54,546 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) [2025-03-04 09:58:54,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:54,546 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:54,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 09:58:54,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:54,747 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:54,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1773347947, now seen corresponding path program 1 times [2025-03-04 09:58:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:54,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592652840] [2025-03-04 09:58:54,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:54,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:54,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:54,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:54,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 09:58:54,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 09:58:54,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 09:58:54,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:54,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:54,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:58:54,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:54,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:54,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592652840] [2025-03-04 09:58:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592652840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:54,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:54,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:54,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150527784] [2025-03-04 09:58:54,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:54,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:54,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:54,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:54,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:54,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:58:54,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:54,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:54,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:58:54,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:56,033 INFO L124 PetriNetUnfolderBase]: 9321/16372 cut-off events. [2025-03-04 09:58:56,034 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2025-03-04 09:58:56,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31092 conditions, 16372 events. 9321/16372 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 132112 event pairs, 9321 based on Foata normal form. 1/9713 useless extension candidates. Maximal degree in co-relation 29764. Up to 14494 conditions per place. [2025-03-04 09:58:56,116 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 74 selfloop transitions, 3 changer transitions 1/114 dead transitions. [2025-03-04 09:58:56,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 114 transitions, 394 flow [2025-03-04 09:58:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:56,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-03-04 09:58:56,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5060483870967742 [2025-03-04 09:58:56,120 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 218 flow. Second operand 4 states and 251 transitions. [2025-03-04 09:58:56,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 114 transitions, 394 flow [2025-03-04 09:58:56,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:56,140 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 235 flow [2025-03-04 09:58:56,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2025-03-04 09:58:56,142 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2025-03-04 09:58:56,143 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 235 flow [2025-03-04 09:58:56,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:56,143 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:56,143 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:56,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:56,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:56,347 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:56,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:56,347 INFO L85 PathProgramCache]: Analyzing trace with hash -860788835, now seen corresponding path program 1 times [2025-03-04 09:58:56,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:56,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452001285] [2025-03-04 09:58:56,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:56,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:56,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:56,352 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:56,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 09:58:56,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:58:56,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:58:56,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:56,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:56,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:58:56,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:56,481 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:56,481 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452001285] [2025-03-04 09:58:56,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452001285] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:56,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:56,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:56,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664912516] [2025-03-04 09:58:56,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:56,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:56,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:56,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:56,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:56,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-03-04 09:58:56,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 235 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) [2025-03-04 09:58:56,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:56,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-03-04 09:58:56,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:57,705 INFO L124 PetriNetUnfolderBase]: 10049/18255 cut-off events. [2025-03-04 09:58:57,705 INFO L125 PetriNetUnfolderBase]: For 385/385 co-relation queries the response was YES. [2025-03-04 09:58:57,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34498 conditions, 18255 events. 10049/18255 cut-off events. For 385/385 co-relation queries the response was YES. Maximal size of possible extension queue 983. Compared 159859 event pairs, 559 based on Foata normal form. 0/11549 useless extension candidates. Maximal degree in co-relation 34451. Up to 13518 conditions per place. [2025-03-04 09:58:57,789 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 7 changer transitions 0/154 dead transitions. [2025-03-04 09:58:57,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 154 transitions, 583 flow [2025-03-04 09:58:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:57,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2025-03-04 09:58:57,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2025-03-04 09:58:57,791 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 235 flow. Second operand 4 states and 266 transitions. [2025-03-04 09:58:57,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 154 transitions, 583 flow [2025-03-04 09:58:57,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 154 transitions, 582 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:57,800 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 238 flow [2025-03-04 09:58:57,800 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2025-03-04 09:58:57,800 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-03-04 09:58:57,801 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 238 flow [2025-03-04 09:58:57,801 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) [2025-03-04 09:58:57,801 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:57,801 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:57,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 09:58:58,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:58,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:58,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash -860788834, now seen corresponding path program 1 times [2025-03-04 09:58:58,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:58,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393680896] [2025-03-04 09:58:58,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:58,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:58,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:58,005 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:58,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 09:58:58,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:58:58,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:58:58,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:58,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:58,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:58:58,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:58,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:58:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:58,135 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:58,135 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:58,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393680896] [2025-03-04 09:58:58,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393680896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:58,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:58,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:58,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892991361] [2025-03-04 09:58:58,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:58,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:58,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:58,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:58,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:58,200 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-03-04 09:58:58,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 238 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) [2025-03-04 09:58:58,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:58,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-03-04 09:58:58,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:59,005 INFO L124 PetriNetUnfolderBase]: 9321/15795 cut-off events. [2025-03-04 09:58:59,005 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2025-03-04 09:58:59,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31316 conditions, 15795 events. 9321/15795 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 124089 event pairs, 3107 based on Foata normal form. 394/9743 useless extension candidates. Maximal degree in co-relation 11421. Up to 9600 conditions per place. [2025-03-04 09:58:59,067 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 106 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2025-03-04 09:58:59,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 135 transitions, 528 flow [2025-03-04 09:58:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2025-03-04 09:58:59,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2025-03-04 09:58:59,068 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 238 flow. Second operand 3 states and 223 transitions. [2025-03-04 09:58:59,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 135 transitions, 528 flow [2025-03-04 09:58:59,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 135 transitions, 512 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:59,078 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 250 flow [2025-03-04 09:58:59,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2025-03-04 09:58:59,079 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-03-04 09:58:59,079 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 250 flow [2025-03-04 09:58:59,079 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) [2025-03-04 09:58:59,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:59,079 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:59,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 09:58:59,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:59,280 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)] === [2025-03-04 09:58:59,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:59,280 INFO L85 PathProgramCache]: Analyzing trace with hash -802692251, now seen corresponding path program 1 times [2025-03-04 09:58:59,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:59,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997224883] [2025-03-04 09:58:59,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:59,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:59,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:59,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:59,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 09:58:59,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 09:58:59,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 09:58:59,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:59,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:59,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 09:58:59,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:59,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:58:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:59,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:59,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:59,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997224883] [2025-03-04 09:58:59,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997224883] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:59,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:59,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:59,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716876982] [2025-03-04 09:58:59,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:59,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:59,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:59,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:59,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:58:59,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:59,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:59,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:58:59,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:00,616 INFO L124 PetriNetUnfolderBase]: 8424/14907 cut-off events. [2025-03-04 09:59:00,616 INFO L125 PetriNetUnfolderBase]: For 778/778 co-relation queries the response was YES. [2025-03-04 09:59:00,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29155 conditions, 14907 events. 8424/14907 cut-off events. For 778/778 co-relation queries the response was YES. Maximal size of possible extension queue 814. Compared 121598 event pairs, 799 based on Foata normal form. 0/9205 useless extension candidates. Maximal degree in co-relation 9239. Up to 8439 conditions per place. [2025-03-04 09:59:00,663 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 154 selfloop transitions, 9 changer transitions 1/195 dead transitions. [2025-03-04 09:59:00,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 195 transitions, 775 flow [2025-03-04 09:59:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 470 transitions. [2025-03-04 09:59:00,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5414746543778802 [2025-03-04 09:59:00,665 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 250 flow. Second operand 7 states and 470 transitions. [2025-03-04 09:59:00,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 195 transitions, 775 flow [2025-03-04 09:59:00,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 195 transitions, 767 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-04 09:59:00,682 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 295 flow [2025-03-04 09:59:00,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=295, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2025-03-04 09:59:00,683 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2025-03-04 09:59:00,683 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 295 flow [2025-03-04 09:59:00,683 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) [2025-03-04 09:59:00,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:00,684 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:00,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 09:59:00,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:00,884 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)] === [2025-03-04 09:59:00,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash -802692252, now seen corresponding path program 1 times [2025-03-04 09:59:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:00,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811301684] [2025-03-04 09:59:00,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:00,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:00,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:00,888 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:00,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 09:59:00,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 09:59:00,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 09:59:00,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:00,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:00,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:59:00,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:00,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 09:59:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:01,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:01,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:01,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811301684] [2025-03-04 09:59:01,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811301684] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:01,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:01,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:01,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56442397] [2025-03-04 09:59:01,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:01,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:01,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:01,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:01,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:01,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:01,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 295 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) [2025-03-04 09:59:01,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:01,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:01,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:02,173 INFO L124 PetriNetUnfolderBase]: 6646/11793 cut-off events. [2025-03-04 09:59:02,173 INFO L125 PetriNetUnfolderBase]: For 3513/3513 co-relation queries the response was YES. [2025-03-04 09:59:02,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24917 conditions, 11793 events. 6646/11793 cut-off events. For 3513/3513 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 91393 event pairs, 775 based on Foata normal form. 0/8527 useless extension candidates. Maximal degree in co-relation 7002. Up to 8172 conditions per place. [2025-03-04 09:59:02,218 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 175 selfloop transitions, 14 changer transitions 0/220 dead transitions. [2025-03-04 09:59:02,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 220 transitions, 907 flow [2025-03-04 09:59:02,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:59:02,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:59:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 539 transitions. [2025-03-04 09:59:02,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5433467741935484 [2025-03-04 09:59:02,220 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 295 flow. Second operand 8 states and 539 transitions. [2025-03-04 09:59:02,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 220 transitions, 907 flow [2025-03-04 09:59:02,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 220 transitions, 900 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-04 09:59:02,229 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 379 flow [2025-03-04 09:59:02,230 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=379, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2025-03-04 09:59:02,230 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2025-03-04 09:59:02,230 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 379 flow [2025-03-04 09:59:02,230 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) [2025-03-04 09:59:02,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:02,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:02,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 09:59:02,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:02,431 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:02,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 704302375, now seen corresponding path program 1 times [2025-03-04 09:59:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:02,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324353542] [2025-03-04 09:59:02,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:02,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:02,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:02,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 09:59:02,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:59:02,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:59:02,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:02,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:02,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:59:02,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:02,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 09:59:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:02,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:02,558 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:02,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324353542] [2025-03-04 09:59:02,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324353542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:02,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:02,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:02,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595418843] [2025-03-04 09:59:02,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:02,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:02,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:02,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:02,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:02,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:02,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 379 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:02,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:02,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:02,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:03,779 INFO L124 PetriNetUnfolderBase]: 5575/9967 cut-off events. [2025-03-04 09:59:03,779 INFO L125 PetriNetUnfolderBase]: For 6993/6993 co-relation queries the response was YES. [2025-03-04 09:59:03,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23271 conditions, 9967 events. 5575/9967 cut-off events. For 6993/6993 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 74973 event pairs, 653 based on Foata normal form. 0/7770 useless extension candidates. Maximal degree in co-relation 21089. Up to 6421 conditions per place. [2025-03-04 09:59:03,814 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2025-03-04 09:59:03,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 222 transitions, 1126 flow [2025-03-04 09:59:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:59:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:59:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2025-03-04 09:59:03,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2025-03-04 09:59:03,816 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 379 flow. Second operand 8 states and 530 transitions. [2025-03-04 09:59:03,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 222 transitions, 1126 flow [2025-03-04 09:59:03,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 222 transitions, 1102 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:03,830 INFO L231 Difference]: Finished difference. Result has 133 places, 121 transitions, 491 flow [2025-03-04 09:59:03,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=122, 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=491, PETRI_PLACES=133, PETRI_TRANSITIONS=121} [2025-03-04 09:59:03,830 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2025-03-04 09:59:03,830 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 121 transitions, 491 flow [2025-03-04 09:59:03,830 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) [2025-03-04 09:59:03,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:03,831 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:03,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 09:59:04,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:04,031 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:04,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:04,031 INFO L85 PathProgramCache]: Analyzing trace with hash 704302376, now seen corresponding path program 1 times [2025-03-04 09:59:04,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236939135] [2025-03-04 09:59:04,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:04,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:04,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:04,033 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:04,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 09:59:04,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:59:04,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:59:04,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:04,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:04,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 09:59:04,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:04,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:59:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:04,213 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:04,213 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:04,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236939135] [2025-03-04 09:59:04,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236939135] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:04,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:04,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:04,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752406105] [2025-03-04 09:59:04,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:04,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:04,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:04,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:04,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:04,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:04,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 121 transitions, 491 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) [2025-03-04 09:59:04,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:04,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:04,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:05,370 INFO L124 PetriNetUnfolderBase]: 4926/8678 cut-off events. [2025-03-04 09:59:05,370 INFO L125 PetriNetUnfolderBase]: For 8057/8059 co-relation queries the response was YES. [2025-03-04 09:59:05,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22078 conditions, 8678 events. 4926/8678 cut-off events. For 8057/8059 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 62560 event pairs, 1266 based on Foata normal form. 378/7832 useless extension candidates. Maximal degree in co-relation 20184. Up to 5127 conditions per place. [2025-03-04 09:59:05,414 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2025-03-04 09:59:05,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 191 transitions, 1053 flow [2025-03-04 09:59:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2025-03-04 09:59:05,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2025-03-04 09:59:05,416 INFO L175 Difference]: Start difference. First operand has 133 places, 121 transitions, 491 flow. Second operand 7 states and 448 transitions. [2025-03-04 09:59:05,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 191 transitions, 1053 flow [2025-03-04 09:59:05,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 191 transitions, 1050 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:59:05,429 INFO L231 Difference]: Finished difference. Result has 141 places, 124 transitions, 567 flow [2025-03-04 09:59:05,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=132, 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=567, PETRI_PLACES=141, PETRI_TRANSITIONS=124} [2025-03-04 09:59:05,430 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-03-04 09:59:05,430 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 124 transitions, 567 flow [2025-03-04 09:59:05,430 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) [2025-03-04 09:59:05,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:05,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:05,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 09:59:05,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:05,631 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:05,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:05,631 INFO L85 PathProgramCache]: Analyzing trace with hash 702411385, now seen corresponding path program 1 times [2025-03-04 09:59:05,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:05,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565286922] [2025-03-04 09:59:05,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:05,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:05,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:05,633 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:05,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 09:59:05,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:59:05,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:59:05,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:05,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:05,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:59:05,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:05,783 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 09:59:05,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-03-04 09:59:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:05,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:05,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:05,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565286922] [2025-03-04 09:59:05,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565286922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:05,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:05,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:05,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535235646] [2025-03-04 09:59:05,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:05,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:05,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:05,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:05,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:05,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-03-04 09:59:05,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 124 transitions, 567 flow. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:05,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:05,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-03-04 09:59:05,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:06,692 INFO L124 PetriNetUnfolderBase]: 4270/7530 cut-off events. [2025-03-04 09:59:06,692 INFO L125 PetriNetUnfolderBase]: For 10289/10293 co-relation queries the response was YES. [2025-03-04 09:59:06,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20726 conditions, 7530 events. 4270/7530 cut-off events. For 10289/10293 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 52983 event pairs, 1170 based on Foata normal form. 4/6791 useless extension candidates. Maximal degree in co-relation 18814. Up to 3737 conditions per place. [2025-03-04 09:59:06,715 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 109 selfloop transitions, 18 changer transitions 0/154 dead transitions. [2025-03-04 09:59:06,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 154 transitions, 913 flow [2025-03-04 09:59:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:59:06,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:59:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2025-03-04 09:59:06,716 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2025-03-04 09:59:06,716 INFO L175 Difference]: Start difference. First operand has 141 places, 124 transitions, 567 flow. Second operand 5 states and 285 transitions. [2025-03-04 09:59:06,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 154 transitions, 913 flow [2025-03-04 09:59:06,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 154 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 09:59:06,727 INFO L231 Difference]: Finished difference. Result has 136 places, 120 transitions, 574 flow [2025-03-04 09:59:06,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=136, PETRI_TRANSITIONS=120} [2025-03-04 09:59:06,728 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 18 predicate places. [2025-03-04 09:59:06,728 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 120 transitions, 574 flow [2025-03-04 09:59:06,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:06,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:06,728 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:06,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 09:59:06,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:06,929 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:06,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash 702411386, now seen corresponding path program 1 times [2025-03-04 09:59:06,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:06,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556058512] [2025-03-04 09:59:06,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:06,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:06,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:06,931 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:06,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 09:59:07,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:59:07,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:59:07,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:07,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:07,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 09:59:07,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:07,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:59:07,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 09:59:07,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:07,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 09:59:07,130 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:07,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 09:59:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:07,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:07,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:07,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556058512] [2025-03-04 09:59:07,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556058512] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:07,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:07,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:07,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438002921] [2025-03-04 09:59:07,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:07,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:07,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:07,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:07,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:07,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2025-03-04 09:59:07,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 120 transitions, 574 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:07,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:07,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2025-03-04 09:59:07,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:07,890 INFO L124 PetriNetUnfolderBase]: 3166/5650 cut-off events. [2025-03-04 09:59:07,891 INFO L125 PetriNetUnfolderBase]: For 8983/8987 co-relation queries the response was YES. [2025-03-04 09:59:07,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16027 conditions, 5650 events. 3166/5650 cut-off events. For 8983/8987 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 37982 event pairs, 1578 based on Foata normal form. 2/5370 useless extension candidates. Maximal degree in co-relation 14264. Up to 2373 conditions per place. [2025-03-04 09:59:07,917 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 109 selfloop transitions, 11 changer transitions 0/144 dead transitions. [2025-03-04 09:59:07,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 144 transitions, 882 flow [2025-03-04 09:59:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2025-03-04 09:59:07,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4657258064516129 [2025-03-04 09:59:07,919 INFO L175 Difference]: Start difference. First operand has 136 places, 120 transitions, 574 flow. Second operand 4 states and 231 transitions. [2025-03-04 09:59:07,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 144 transitions, 882 flow [2025-03-04 09:59:07,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 144 transitions, 846 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:07,927 INFO L231 Difference]: Finished difference. Result has 131 places, 116 transitions, 552 flow [2025-03-04 09:59:07,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=552, PETRI_PLACES=131, PETRI_TRANSITIONS=116} [2025-03-04 09:59:07,930 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2025-03-04 09:59:07,930 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 116 transitions, 552 flow [2025-03-04 09:59:07,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:07,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:07,930 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:07,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 09:59:08,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:08,131 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:08,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash 707493122, now seen corresponding path program 1 times [2025-03-04 09:59:08,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:08,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027218792] [2025-03-04 09:59:08,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:08,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:08,133 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:08,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 09:59:08,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 09:59:08,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 09:59:08,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:08,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:08,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 09:59:08,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:08,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:08,250 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:08,250 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:08,252 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 [2025-03-04 09:59:08,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:08,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:08,286 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 83 treesize of output 73 [2025-03-04 09:59:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:08,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:08,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:08,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027218792] [2025-03-04 09:59:08,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027218792] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:08,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:08,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:08,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118608105] [2025-03-04 09:59:08,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:08,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:08,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:08,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:08,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:08,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:59:08,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 116 transitions, 552 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:08,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:08,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:59:08,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:09,655 INFO L124 PetriNetUnfolderBase]: 4590/7885 cut-off events. [2025-03-04 09:59:09,656 INFO L125 PetriNetUnfolderBase]: For 10544/10548 co-relation queries the response was YES. [2025-03-04 09:59:09,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 7885 events. 4590/7885 cut-off events. For 10544/10548 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 54069 event pairs, 2233 based on Foata normal form. 2/7408 useless extension candidates. Maximal degree in co-relation 20213. Up to 5326 conditions per place. [2025-03-04 09:59:09,690 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 125 selfloop transitions, 13 changer transitions 0/166 dead transitions. [2025-03-04 09:59:09,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 166 transitions, 1030 flow [2025-03-04 09:59:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:09,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:09,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2025-03-04 09:59:09,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5544354838709677 [2025-03-04 09:59:09,692 INFO L175 Difference]: Start difference. First operand has 131 places, 116 transitions, 552 flow. Second operand 4 states and 275 transitions. [2025-03-04 09:59:09,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 166 transitions, 1030 flow [2025-03-04 09:59:09,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 166 transitions, 1006 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:59:09,705 INFO L231 Difference]: Finished difference. Result has 134 places, 128 transitions, 648 flow [2025-03-04 09:59:09,705 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=648, PETRI_PLACES=134, PETRI_TRANSITIONS=128} [2025-03-04 09:59:09,705 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2025-03-04 09:59:09,705 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 128 transitions, 648 flow [2025-03-04 09:59:09,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:09,706 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:09,706 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:09,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-04 09:59:09,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:09,906 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:09,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:09,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1645126833, now seen corresponding path program 1 times [2025-03-04 09:59:09,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:09,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403941661] [2025-03-04 09:59:09,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:09,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:09,909 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:09,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 09:59:09,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 09:59:10,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 09:59:10,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:10,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:10,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:59:10,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:10,028 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:10,028 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:10,028 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:10,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-04 09:59:10,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:10,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2025-03-04 09:59:10,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:10,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2025-03-04 09:59:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:10,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:10,109 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403941661] [2025-03-04 09:59:10,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403941661] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:10,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:10,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:10,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934117599] [2025-03-04 09:59:10,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:10,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:10,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:10,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:10,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:10,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-04 09:59:10,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 128 transitions, 648 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:10,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:10,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-04 09:59:10,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:11,576 INFO L124 PetriNetUnfolderBase]: 5024/8823 cut-off events. [2025-03-04 09:59:11,576 INFO L125 PetriNetUnfolderBase]: For 14334/14338 co-relation queries the response was YES. [2025-03-04 09:59:11,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27115 conditions, 8823 events. 5024/8823 cut-off events. For 14334/14338 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 63573 event pairs, 3121 based on Foata normal form. 123/8903 useless extension candidates. Maximal degree in co-relation 25155. Up to 7300 conditions per place. [2025-03-04 09:59:11,618 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 131 selfloop transitions, 18 changer transitions 0/178 dead transitions. [2025-03-04 09:59:11,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 178 transitions, 1177 flow [2025-03-04 09:59:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:59:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:59:11,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2025-03-04 09:59:11,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5129032258064516 [2025-03-04 09:59:11,620 INFO L175 Difference]: Start difference. First operand has 134 places, 128 transitions, 648 flow. Second operand 5 states and 318 transitions. [2025-03-04 09:59:11,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 178 transitions, 1177 flow [2025-03-04 09:59:11,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 178 transitions, 1177 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 09:59:11,635 INFO L231 Difference]: Finished difference. Result has 141 places, 142 transitions, 833 flow [2025-03-04 09:59:11,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=833, PETRI_PLACES=141, PETRI_TRANSITIONS=142} [2025-03-04 09:59:11,635 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-03-04 09:59:11,635 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 142 transitions, 833 flow [2025-03-04 09:59:11,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:11,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:11,636 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:11,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:11,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:11,836 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:11,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:11,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1254275648, now seen corresponding path program 1 times [2025-03-04 09:59:11,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:11,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407121712] [2025-03-04 09:59:11,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:11,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:11,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:11,839 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:11,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 09:59:11,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:59:11,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:59:11,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:11,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:11,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 09:59:11,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:11,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:59:12,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:12,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 09:59:12,077 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:12,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 09:59:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:12,086 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:12,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:12,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407121712] [2025-03-04 09:59:12,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407121712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:12,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:12,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:59:12,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582082050] [2025-03-04 09:59:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:12,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:59:12,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:12,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:59:12,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:59:12,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-03-04 09:59:12,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 142 transitions, 833 flow. Second operand has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:12,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:12,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-03-04 09:59:12,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:13,827 INFO L124 PetriNetUnfolderBase]: 4508/8377 cut-off events. [2025-03-04 09:59:13,827 INFO L125 PetriNetUnfolderBase]: For 18631/18637 co-relation queries the response was YES. [2025-03-04 09:59:13,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27073 conditions, 8377 events. 4508/8377 cut-off events. For 18631/18637 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 63000 event pairs, 1089 based on Foata normal form. 436/8787 useless extension candidates. Maximal degree in co-relation 25629. Up to 4834 conditions per place. [2025-03-04 09:59:13,869 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 201 selfloop transitions, 22 changer transitions 0/253 dead transitions. [2025-03-04 09:59:13,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 253 transitions, 1824 flow [2025-03-04 09:59:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:59:13,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:59:13,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 549 transitions. [2025-03-04 09:59:13,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49193548387096775 [2025-03-04 09:59:13,871 INFO L175 Difference]: Start difference. First operand has 141 places, 142 transitions, 833 flow. Second operand 9 states and 549 transitions. [2025-03-04 09:59:13,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 253 transitions, 1824 flow [2025-03-04 09:59:13,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 253 transitions, 1791 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:13,899 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 851 flow [2025-03-04 09:59:13,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=851, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2025-03-04 09:59:13,900 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2025-03-04 09:59:13,900 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 851 flow [2025-03-04 09:59:13,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:13,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:13,900 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:13,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 09:59:14,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:14,101 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:14,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:14,101 INFO L85 PathProgramCache]: Analyzing trace with hash -818662634, now seen corresponding path program 1 times [2025-03-04 09:59:14,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:14,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877155750] [2025-03-04 09:59:14,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:14,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:14,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:14,105 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:14,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 09:59:14,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:59:14,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:59:14,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:14,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:14,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 09:59:14,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:14,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 09:59:14,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 09:59:14,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:14,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-03-04 09:59:14,319 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:14,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-03-04 09:59:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:14,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:14,331 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:14,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877155750] [2025-03-04 09:59:14,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877155750] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:14,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:14,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:14,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007893908] [2025-03-04 09:59:14,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:14,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:59:14,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:14,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:59:14,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:59:14,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:14,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 851 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) [2025-03-04 09:59:14,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:14,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:14,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:15,680 INFO L124 PetriNetUnfolderBase]: 4439/8402 cut-off events. [2025-03-04 09:59:15,680 INFO L125 PetriNetUnfolderBase]: For 20033/20037 co-relation queries the response was YES. [2025-03-04 09:59:15,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27094 conditions, 8402 events. 4439/8402 cut-off events. For 20033/20037 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 64908 event pairs, 1146 based on Foata normal form. 328/8710 useless extension candidates. Maximal degree in co-relation 25672. Up to 4020 conditions per place. [2025-03-04 09:59:15,717 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 204 selfloop transitions, 22 changer transitions 0/257 dead transitions. [2025-03-04 09:59:15,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 257 transitions, 1893 flow [2025-03-04 09:59:15,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:59:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:59:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 558 transitions. [2025-03-04 09:59:15,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-03-04 09:59:15,719 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 851 flow. Second operand 9 states and 558 transitions. [2025-03-04 09:59:15,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 257 transitions, 1893 flow [2025-03-04 09:59:15,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 257 transitions, 1844 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-04 09:59:15,750 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 853 flow [2025-03-04 09:59:15,750 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=853, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2025-03-04 09:59:15,751 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2025-03-04 09:59:15,751 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 853 flow [2025-03-04 09:59:15,751 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) [2025-03-04 09:59:15,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:15,751 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:15,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 09:59:15,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,952 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:15,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash 457450828, now seen corresponding path program 1 times [2025-03-04 09:59:15,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:15,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276755419] [2025-03-04 09:59:15,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:15,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:15,954 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:15,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 09:59:16,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:59:16,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:59:16,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:16,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:16,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:59:16,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:16,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,071 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:16,071 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:16,072 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 [2025-03-04 09:59:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:16,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:16,097 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:16,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276755419] [2025-03-04 09:59:16,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276755419] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:16,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:16,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:59:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938347592] [2025-03-04 09:59:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:16,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:59:16,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:16,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:59:16,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:59:16,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:59:16,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 853 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:16,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:16,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:59:16,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:17,272 INFO L124 PetriNetUnfolderBase]: 4949/8864 cut-off events. [2025-03-04 09:59:17,272 INFO L125 PetriNetUnfolderBase]: For 21580/21582 co-relation queries the response was YES. [2025-03-04 09:59:17,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29882 conditions, 8864 events. 4949/8864 cut-off events. For 21580/21582 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 65286 event pairs, 3136 based on Foata normal form. 120/8939 useless extension candidates. Maximal degree in co-relation 28461. Up to 7173 conditions per place. [2025-03-04 09:59:17,305 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 118 selfloop transitions, 18 changer transitions 0/164 dead transitions. [2025-03-04 09:59:17,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 164 transitions, 1277 flow [2025-03-04 09:59:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:59:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:59:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2025-03-04 09:59:17,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5376344086021505 [2025-03-04 09:59:17,307 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 853 flow. Second operand 3 states and 200 transitions. [2025-03-04 09:59:17,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 164 transitions, 1277 flow [2025-03-04 09:59:17,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 164 transitions, 1242 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-04 09:59:17,338 INFO L231 Difference]: Finished difference. Result has 141 places, 149 transitions, 1015 flow [2025-03-04 09:59:17,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1015, PETRI_PLACES=141, PETRI_TRANSITIONS=149} [2025-03-04 09:59:17,339 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-03-04 09:59:17,339 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 149 transitions, 1015 flow [2025-03-04 09:59:17,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:17,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:17,339 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:17,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-04 09:59:17,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,542 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:17,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash 139192594, now seen corresponding path program 1 times [2025-03-04 09:59:17,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:17,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948122378] [2025-03-04 09:59:17,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:17,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:17,544 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:17,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 09:59:17,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:59:17,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:59:17,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:17,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:17,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 09:59:17,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:17,655 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:17,655 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:17,655 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:17,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-04 09:59:17,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:17,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2025-03-04 09:59:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:17,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:17,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:17,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948122378] [2025-03-04 09:59:17,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948122378] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:17,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:17,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:17,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252518397] [2025-03-04 09:59:17,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:17,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:17,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:17,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:17,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:17,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-03-04 09:59:17,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 149 transitions, 1015 flow. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:17,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:17,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-03-04 09:59:17,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:20,038 INFO L124 PetriNetUnfolderBase]: 6273/10928 cut-off events. [2025-03-04 09:59:20,038 INFO L125 PetriNetUnfolderBase]: For 33021/33023 co-relation queries the response was YES. [2025-03-04 09:59:20,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39425 conditions, 10928 events. 6273/10928 cut-off events. For 33021/33023 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 80350 event pairs, 3308 based on Foata normal form. 1/10827 useless extension candidates. Maximal degree in co-relation 36049. Up to 8027 conditions per place. [2025-03-04 09:59:20,103 INFO L140 encePairwiseOnDemand]: 113/124 looper letters, 158 selfloop transitions, 49 changer transitions 0/232 dead transitions. [2025-03-04 09:59:20,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 232 transitions, 1986 flow [2025-03-04 09:59:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:59:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:59:20,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 351 transitions. [2025-03-04 09:59:20,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4717741935483871 [2025-03-04 09:59:20,104 INFO L175 Difference]: Start difference. First operand has 141 places, 149 transitions, 1015 flow. Second operand 6 states and 351 transitions. [2025-03-04 09:59:20,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 232 transitions, 1986 flow [2025-03-04 09:59:20,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 232 transitions, 1934 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:20,177 INFO L231 Difference]: Finished difference. Result has 148 places, 189 transitions, 1583 flow [2025-03-04 09:59:20,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1583, PETRI_PLACES=148, PETRI_TRANSITIONS=189} [2025-03-04 09:59:20,177 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 30 predicate places. [2025-03-04 09:59:20,178 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 189 transitions, 1583 flow [2025-03-04 09:59:20,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:59:20,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:20,178 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:20,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 09:59:20,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:20,378 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:20,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:20,379 INFO L85 PathProgramCache]: Analyzing trace with hash -709291966, now seen corresponding path program 1 times [2025-03-04 09:59:20,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:20,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431307379] [2025-03-04 09:59:20,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:20,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:20,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:20,381 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:20,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 09:59:20,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:59:23,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:59:23,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:23,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 09:59:23,251 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 09:59:23,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:59:25,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:59:25,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:25,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 09:59:25,843 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-04 09:59:25,843 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 09:59:25,843 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2025-03-04 09:59:25,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2025-03-04 09:59:25,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (34 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2025-03-04 09:59:25,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2025-03-04 09:59:25,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2025-03-04 09:59:25,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2025-03-04 09:59:25,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2025-03-04 09:59:25,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2025-03-04 09:59:25,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2025-03-04 09:59:25,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 09:59:26,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:26,050 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:26,075 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:59:26,075 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:59:26,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:59:26 BasicIcfg [2025-03-04 09:59:26,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:59:26,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:59:26,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:59:26,081 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:59:26,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:49" (3/4) ... [2025-03-04 09:59:26,082 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 09:59:26,083 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:59:26,083 INFO L158 Benchmark]: Toolchain (without parser) took 38448.68ms. Allocated memory was 117.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 87.3MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 143.6MB. Max. memory is 16.1GB. [2025-03-04 09:59:26,084 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:59:26,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.56ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 45.6MB in the end (delta: 41.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-04 09:59:26,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.40ms. Allocated memory is still 117.4MB. Free memory was 45.6MB in the beginning and 88.3MB in the end (delta: -42.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2025-03-04 09:59:26,085 INFO L158 Benchmark]: Boogie Preprocessor took 48.18ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 83.8MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:59:26,085 INFO L158 Benchmark]: IcfgBuilder took 864.80ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 55.9MB in the end (delta: 27.8MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2025-03-04 09:59:26,085 INFO L158 Benchmark]: TraceAbstraction took 36945.14ms. Allocated memory was 117.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 55.3MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. [2025-03-04 09:59:26,085 INFO L158 Benchmark]: Witness Printer took 2.51ms. Allocated memory is still 1.9GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 389.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:59:26,087 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 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.56ms. Allocated memory is still 117.4MB. Free memory was 87.3MB in the beginning and 45.6MB in the end (delta: 41.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.40ms. Allocated memory is still 117.4MB. Free memory was 45.6MB in the beginning and 88.3MB in the end (delta: -42.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.18ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 83.8MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 864.80ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 55.9MB in the end (delta: 27.8MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * TraceAbstraction took 36945.14ms. Allocated memory was 117.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 55.3MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. * Witness Printer took 2.51ms. Allocated memory is still 1.9GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 389.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={128:24}, \old(data)={128:0}, d={128:24}, data={128:0}, res=0, t1=14, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={128:24}, \old(data)={128:0}, arg={128:24}, d={128:24}, data={128:0}, data={128:0}, dev={128:24}, res=0, t1=14, t2=15] [L3931] 0 return 0; VAL [\old(arg)={128:24}, \old(data)={128:0}, \result=0, arg={128:24}, d={128:24}, data={128:0}, data={128:0}, dev={128:24}, res=0, t1=14, t2=15] [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)={128:24}, \old(data)={128:0}, arg={128:24}, data={128:0}, data={128:0}, dev={128:24}, status={64:0}, t1=14, t2=15] [L3940] 0 data->shared.a = 3 VAL [\old(arg)={128:24}, arg={128:24}, data={128:0}, dev={128:24}, t1=14, t2=15] [L3943] 0 data->shared.b = 3 VAL [\old(arg)={128:24}, arg={128:24}, data={128:0}, dev={128:24}, t1=14, t2=15] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={128:24}, arg={128:24}, data={128:0}, dev={128:24}, t1=14, t2=15] [L3946] EXPR 0 data->shared.a [L3946] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={128:24}, arg={128:24}, data={128:0}, dev={128:24}, t1=14, t2=15] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 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, 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: 36.8s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2633 SdHoareTripleChecker+Valid, 10.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2157 mSDsluCounter, 155 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6038 IncrementalHoareTripleChecker+Invalid, 6143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 88 mSDtfsCounter, 6038 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1583occurred in iteration=18, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 1548 SizeOfPredicates, 105 NumberOfNonLiveVariables, 1840 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 [2025-03-04 09:59:26,108 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