./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:53:19,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:53:19,281 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:53:19,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:53:19,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:53:19,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:53:19,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:53:19,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:53:19,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:53:19,300 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:53:19,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:53:19,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:53:19,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:53:19,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:53:19,300 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:53:19,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:53:19,301 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:53:19,302 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:53:19,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:53:19,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:53:19,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:53:19,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:53:19,303 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2025-01-10 00:53:19,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:53:19,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:53:19,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:53:19,486 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:53:19,486 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:53:19,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-01-10 00:53:20,727 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8a5d56c24/adb08e01c696459d8c5e3c46bfb36870/FLAGa72bfcedf [2025-01-10 00:53:21,146 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:53:21,147 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-01-10 00:53:21,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8a5d56c24/adb08e01c696459d8c5e3c46bfb36870/FLAGa72bfcedf [2025-01-10 00:53:21,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8a5d56c24/adb08e01c696459d8c5e3c46bfb36870 [2025-01-10 00:53:21,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:53:21,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:53:21,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:53:21,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:53:21,203 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:53:21,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:53:21" (1/1) ... [2025-01-10 00:53:21,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9ad36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:21, skipping insertion in model container [2025-01-10 00:53:21,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:53:21" (1/1) ... [2025-01-10 00:53:21,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:53:21,508 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:21,518 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:21,526 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:21,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:53:21,551 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) [2025-01-10 00:53:21,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27b18f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:21, skipping insertion in model container [2025-01-10 00:53:21,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:53:21,552 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-10 00:53:21,556 INFO L158 Benchmark]: Toolchain (without parser) took 355.02ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 93.2MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:53:21,556 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:53:21,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.24ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 93.2MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:53:21,557 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.24ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 93.2MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:53:23,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:53:23,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:53:23,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:53:23,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:53:23,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:53:23,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:53:23,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:53:23,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:53:23,618 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:53:23,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:53:23,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:53:23,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:53:23,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:53:23,618 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:53:23,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:53:23,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:53:23,620 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:53:23,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:53:23,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:53:23,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:53:23,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:53:23,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:53:23,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:53:23,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:53:23,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:53:23,621 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:53:23,622 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:53:23,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:53:23,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:53:23,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:53:23,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:53:23,622 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2025-01-10 00:53:23,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:53:23,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:53:23,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:53:23,874 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:53:23,874 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:53:23,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-01-10 00:53:25,100 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c39a3e1fd/fa5083f3a25849bcbba8255a8697dea8/FLAG307baea26 [2025-01-10 00:53:25,426 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:53:25,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-01-10 00:53:25,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c39a3e1fd/fa5083f3a25849bcbba8255a8697dea8/FLAG307baea26 [2025-01-10 00:53:25,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c39a3e1fd/fa5083f3a25849bcbba8255a8697dea8 [2025-01-10 00:53:25,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:53:25,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:53:25,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:53:25,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:53:25,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:53:25,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:25,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f770e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25, skipping insertion in model container [2025-01-10 00:53:25,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:25,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:53:25,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:25,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:25,828 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:25,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:53:25,853 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-10 00:53:25,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:53:25,900 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:25,902 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:25,904 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:53:25,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:53:25,910 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:53:25,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:53:25,999 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:53:25,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25 WrapperNode [2025-01-10 00:53:26,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:53:26,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:53:26,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:53:26,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:53:26,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,034 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2025-01-10 00:53:26,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:53:26,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:53:26,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:53:26,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:53:26,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,062 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2025-01-10 00:53:26,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,080 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:53:26,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:53:26,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:53:26,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:53:26,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (1/1) ... [2025-01-10 00:53:26,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:53:26,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:26,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:53:26,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:53:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:53:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:53:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:53:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-01-10 00:53:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-01-10 00:53:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 00:53:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:53:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:53:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:53:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:53:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:53:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:53:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:53:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:53:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 00:53:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 00:53:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 00:53:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:53:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:53:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:53:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:53:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:53:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:53:26,157 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:53:26,410 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:53:26,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:53:26,870 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:53:26,870 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:53:26,980 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:53:26,980 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 00:53:26,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:53:26 BoogieIcfgContainer [2025-01-10 00:53:26,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:53:26,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:53:26,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:53:26,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:53:26,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:53:25" (1/3) ... [2025-01-10 00:53:26,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bb1037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:53:26, skipping insertion in model container [2025-01-10 00:53:26,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:53:25" (2/3) ... [2025-01-10 00:53:26,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bb1037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:53:26, skipping insertion in model container [2025-01-10 00:53:26,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:53:26" (3/3) ... [2025-01-10 00:53:26,986 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2025-01-10 00:53:26,995 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:53:26,996 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_5-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2025-01-10 00:53:26,996 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 00:53:27,069 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 00:53:27,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2025-01-10 00:53:27,137 INFO L124 PetriNetUnfolderBase]: 14/157 cut-off events. [2025-01-10 00:53:27,139 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 00:53:27,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 14/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 501 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2025-01-10 00:53:27,141 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2025-01-10 00:53:27,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2025-01-10 00:53:27,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:53:27,157 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;@13f5c12f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:53:27,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-01-10 00:53:27,160 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 00:53:27,160 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-01-10 00:53:27,160 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:53:27,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:27,161 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 00:53:27,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:27,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:27,165 INFO L85 PathProgramCache]: Analyzing trace with hash 561254, now seen corresponding path program 1 times [2025-01-10 00:53:27,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:27,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847207004] [2025-01-10 00:53:27,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:27,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:27,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:27,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:27,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:53:27,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:53:27,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:53:27,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:27,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:27,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:53:27,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:27,319 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 [2025-01-10 00:53:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:27,329 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:27,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:27,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847207004] [2025-01-10 00:53:27,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847207004] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:27,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:27,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:27,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135020604] [2025-01-10 00:53:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:27,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:27,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:27,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:27,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-01-10 00:53:27,402 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) [2025-01-10 00:53:27,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:27,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-01-10 00:53:27,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:28,689 INFO L124 PetriNetUnfolderBase]: 4409/10835 cut-off events. [2025-01-10 00:53:28,689 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-01-10 00:53:28,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17919 conditions, 10835 events. 4409/10835 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111305 event pairs, 559 based on Foata normal form. 792/8156 useless extension candidates. Maximal degree in co-relation 16922. Up to 6052 conditions per place. [2025-01-10 00:53:28,777 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2025-01-10 00:53:28,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2025-01-10 00:53:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:28,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-01-10 00:53:28,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2025-01-10 00:53:28,788 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2025-01-10 00:53:28,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2025-01-10 00:53:28,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 00:53:28,796 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2025-01-10 00:53:28,798 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} [2025-01-10 00:53:28,799 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2025-01-10 00:53:28,800 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2025-01-10 00:53:28,800 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) [2025-01-10 00:53:28,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:28,800 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 00:53:28,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:53:29,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:29,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:29,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash 561255, now seen corresponding path program 1 times [2025-01-10 00:53:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:29,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632282799] [2025-01-10 00:53:29,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:29,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:29,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:29,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:53:29,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:53:29,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:53:29,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:29,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:29,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:53:29,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:29,115 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 [2025-01-10 00:53:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:29,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:29,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:29,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632282799] [2025-01-10 00:53:29,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632282799] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:29,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:29,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:29,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143582329] [2025-01-10 00:53:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:29,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:29,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:29,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:29,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:29,192 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-01-10 00:53:29,192 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) [2025-01-10 00:53:29,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:29,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-01-10 00:53:29,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:30,049 INFO L124 PetriNetUnfolderBase]: 4409/10833 cut-off events. [2025-01-10 00:53:30,049 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-01-10 00:53:30,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18083 conditions, 10833 events. 4409/10833 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111595 event pairs, 559 based on Foata normal form. 1/7363 useless extension candidates. Maximal degree in co-relation 1994. Up to 6052 conditions per place. [2025-01-10 00:53:30,088 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2025-01-10 00:53:30,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2025-01-10 00:53:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:30,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2025-01-10 00:53:30,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2025-01-10 00:53:30,090 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2025-01-10 00:53:30,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2025-01-10 00:53:30,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:30,093 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2025-01-10 00:53:30,093 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} [2025-01-10 00:53:30,094 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-01-10 00:53:30,094 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2025-01-10 00:53:30,094 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) [2025-01-10 00:53:30,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:30,094 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 00:53:30,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:30,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:30,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:30,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:30,299 INFO L85 PathProgramCache]: Analyzing trace with hash 17397141, now seen corresponding path program 1 times [2025-01-10 00:53:30,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:30,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124166325] [2025-01-10 00:53:30,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:30,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:30,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:30,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:30,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:53:30,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 00:53:30,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 00:53:30,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:30,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:30,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 00:53:30,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:30,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:30,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:30,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:30,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124166325] [2025-01-10 00:53:30,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124166325] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:30,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:30,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 00:53:30,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837763592] [2025-01-10 00:53:30,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:30,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:30,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:30,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:30,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:30,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-01-10 00:53:30,525 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) [2025-01-10 00:53:30,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:30,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-01-10 00:53:30,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:31,302 INFO L124 PetriNetUnfolderBase]: 4773/8523 cut-off events. [2025-01-10 00:53:31,302 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2025-01-10 00:53:31,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16335 conditions, 8523 events. 4773/8523 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 64195 event pairs, 4407 based on Foata normal form. 0/5704 useless extension candidates. Maximal degree in co-relation 8241. Up to 7034 conditions per place. [2025-01-10 00:53:31,330 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 3 changer transitions 2/133 dead transitions. [2025-01-10 00:53:31,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 133 transitions, 468 flow [2025-01-10 00:53:31,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2025-01-10 00:53:31,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2025-01-10 00:53:31,333 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 224 transitions. [2025-01-10 00:53:31,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 133 transitions, 468 flow [2025-01-10 00:53:31,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 133 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:31,337 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 225 flow [2025-01-10 00:53:31,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2025-01-10 00:53:31,338 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -9 predicate places. [2025-01-10 00:53:31,338 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 225 flow [2025-01-10 00:53:31,338 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) [2025-01-10 00:53:31,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:31,338 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:31,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 00:53:31,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:31,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:31,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1675627661, now seen corresponding path program 1 times [2025-01-10 00:53:31,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:31,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055503148] [2025-01-10 00:53:31,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:31,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:31,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:31,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:31,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 00:53:31,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:53:31,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:53:31,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:31,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:31,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:53:31,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:31,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:31,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:31,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055503148] [2025-01-10 00:53:31,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055503148] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:31,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:31,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:53:31,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342326410] [2025-01-10 00:53:31,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:31,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:53:31,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:31,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:53:31,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:53:31,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-01-10 00:53:31,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:31,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:31,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-01-10 00:53:31,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:32,753 INFO L124 PetriNetUnfolderBase]: 5136/10771 cut-off events. [2025-01-10 00:53:32,754 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2025-01-10 00:53:32,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19345 conditions, 10771 events. 5136/10771 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 98912 event pairs, 559 based on Foata normal form. 0/8147 useless extension candidates. Maximal degree in co-relation 18015. Up to 6049 conditions per place. [2025-01-10 00:53:32,800 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2025-01-10 00:53:32,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 152 transitions, 569 flow [2025-01-10 00:53:32,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:53:32,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 00:53:32,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2025-01-10 00:53:32,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2025-01-10 00:53:32,802 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 225 flow. Second operand 4 states and 266 transitions. [2025-01-10 00:53:32,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 152 transitions, 569 flow [2025-01-10 00:53:32,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 152 transitions, 558 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-01-10 00:53:32,830 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 214 flow [2025-01-10 00:53:32,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2025-01-10 00:53:32,831 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2025-01-10 00:53:32,831 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 214 flow [2025-01-10 00:53:32,831 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) [2025-01-10 00:53:32,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:32,831 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:32,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 00:53:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:33,032 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:33,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1675627662, now seen corresponding path program 1 times [2025-01-10 00:53:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926099221] [2025-01-10 00:53:33,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:33,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:33,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:33,034 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:33,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 00:53:33,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:53:33,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:53:33,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:33,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:33,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:53:33,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:33,130 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 [2025-01-10 00:53:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:33,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:33,166 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:33,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926099221] [2025-01-10 00:53:33,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926099221] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:33,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:33,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146124546] [2025-01-10 00:53:33,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:33,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:33,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:33,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:33,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:33,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-01-10 00:53:33,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:33,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:33,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-01-10 00:53:33,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:33,747 INFO L124 PetriNetUnfolderBase]: 4408/8143 cut-off events. [2025-01-10 00:53:33,747 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2025-01-10 00:53:33,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15606 conditions, 8143 events. 4408/8143 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 62957 event pairs, 3107 based on Foata normal form. 394/6163 useless extension candidates. Maximal degree in co-relation 6170. Up to 4910 conditions per place. [2025-01-10 00:53:33,782 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 105 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-01-10 00:53:33,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 133 transitions, 498 flow [2025-01-10 00:53:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:33,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2025-01-10 00:53:33,784 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2025-01-10 00:53:33,784 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 214 flow. Second operand 3 states and 223 transitions. [2025-01-10 00:53:33,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 133 transitions, 498 flow [2025-01-10 00:53:33,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 133 transitions, 486 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 00:53:33,788 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 225 flow [2025-01-10 00:53:33,788 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2025-01-10 00:53:33,789 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2025-01-10 00:53:33,789 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 225 flow [2025-01-10 00:53:33,789 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) [2025-01-10 00:53:33,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:33,789 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:33,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 00:53:33,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:33,993 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:33,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash 480476947, now seen corresponding path program 1 times [2025-01-10 00:53:33,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:33,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679582456] [2025-01-10 00:53:33,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:33,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:33,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:33,998 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:33,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 00:53:34,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:53:34,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:53:34,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:34,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:34,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:53:34,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:34,097 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 [2025-01-10 00:53:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:34,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:34,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:34,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679582456] [2025-01-10 00:53:34,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679582456] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:34,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:34,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:53:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748107704] [2025-01-10 00:53:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:34,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:53:34,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:34,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:53:34,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:53:34,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:53:34,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:34,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:34,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:53:34,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:35,012 INFO L124 PetriNetUnfolderBase]: 3844/8014 cut-off events. [2025-01-10 00:53:35,012 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2025-01-10 00:53:35,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14903 conditions, 8014 events. 3844/8014 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 67370 event pairs, 253 based on Foata normal form. 0/6199 useless extension candidates. Maximal degree in co-relation 9082. Up to 3713 conditions per place. [2025-01-10 00:53:35,034 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 169 selfloop transitions, 13 changer transitions 1/214 dead transitions. [2025-01-10 00:53:35,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 214 transitions, 830 flow [2025-01-10 00:53:35,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:53:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 00:53:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 534 transitions. [2025-01-10 00:53:35,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5383064516129032 [2025-01-10 00:53:35,036 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 225 flow. Second operand 8 states and 534 transitions. [2025-01-10 00:53:35,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 214 transitions, 830 flow [2025-01-10 00:53:35,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 214 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 00:53:35,045 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 313 flow [2025-01-10 00:53:35,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=313, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2025-01-10 00:53:35,045 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2025-01-10 00:53:35,045 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 313 flow [2025-01-10 00:53:35,046 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) [2025-01-10 00:53:35,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:35,048 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:35,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 00:53:35,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:35,248 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:35,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:35,249 INFO L85 PathProgramCache]: Analyzing trace with hash 480476948, now seen corresponding path program 1 times [2025-01-10 00:53:35,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:35,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163680891] [2025-01-10 00:53:35,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:35,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:35,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:35,251 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:35,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 00:53:35,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 00:53:35,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 00:53:35,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:35,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:35,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 00:53:35,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:35,373 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 [2025-01-10 00:53:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:35,470 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:35,470 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:35,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163680891] [2025-01-10 00:53:35,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163680891] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:35,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:35,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:53:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199945902] [2025-01-10 00:53:35,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:53:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:35,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:53:35,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:53:35,637 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:53:35,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 313 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:35,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:35,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:53:35,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:36,403 INFO L124 PetriNetUnfolderBase]: 2867/6051 cut-off events. [2025-01-10 00:53:36,403 INFO L125 PetriNetUnfolderBase]: For 2274/2274 co-relation queries the response was YES. [2025-01-10 00:53:36,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12516 conditions, 6051 events. 2867/6051 cut-off events. For 2274/2274 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 48324 event pairs, 257 based on Foata normal form. 524/5632 useless extension candidates. Maximal degree in co-relation 11053. Up to 3099 conditions per place. [2025-01-10 00:53:36,423 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 151 selfloop transitions, 10 changer transitions 2/194 dead transitions. [2025-01-10 00:53:36,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 194 transitions, 827 flow [2025-01-10 00:53:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 00:53:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 00:53:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2025-01-10 00:53:36,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-01-10 00:53:36,426 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 313 flow. Second operand 7 states and 465 transitions. [2025-01-10 00:53:36,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 194 transitions, 827 flow [2025-01-10 00:53:36,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 194 transitions, 827 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 00:53:36,436 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 366 flow [2025-01-10 00:53:36,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2025-01-10 00:53:36,437 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2025-01-10 00:53:36,437 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 366 flow [2025-01-10 00:53:36,437 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) [2025-01-10 00:53:36,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:36,438 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:36,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:36,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:36,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:36,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash 458561999, now seen corresponding path program 1 times [2025-01-10 00:53:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:36,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508899996] [2025-01-10 00:53:36,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:36,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:36,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:36,641 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:36,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 00:53:36,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 00:53:36,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 00:53:36,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:36,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:36,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:53:36,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:36,738 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 [2025-01-10 00:53:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:36,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:36,772 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:36,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508899996] [2025-01-10 00:53:36,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508899996] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:36,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:36,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:53:36,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712995185] [2025-01-10 00:53:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:36,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:53:36,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:36,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:53:36,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:53:36,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:53:36,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 366 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:36,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:36,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:53:36,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:37,673 INFO L124 PetriNetUnfolderBase]: 2636/5484 cut-off events. [2025-01-10 00:53:37,673 INFO L125 PetriNetUnfolderBase]: For 3778/3778 co-relation queries the response was YES. [2025-01-10 00:53:37,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12310 conditions, 5484 events. 2636/5484 cut-off events. For 3778/3778 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 42659 event pairs, 191 based on Foata normal form. 0/4807 useless extension candidates. Maximal degree in co-relation 10986. Up to 2221 conditions per place. [2025-01-10 00:53:37,688 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2025-01-10 00:53:37,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 222 transitions, 1105 flow [2025-01-10 00:53:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:53:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 00:53:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2025-01-10 00:53:37,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2025-01-10 00:53:37,690 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 366 flow. Second operand 8 states and 530 transitions. [2025-01-10 00:53:37,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 222 transitions, 1105 flow [2025-01-10 00:53:37,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 222 transitions, 1075 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-10 00:53:37,697 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 469 flow [2025-01-10 00:53:37,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=469, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2025-01-10 00:53:37,698 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2025-01-10 00:53:37,698 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 469 flow [2025-01-10 00:53:37,698 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) [2025-01-10 00:53:37,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:37,699 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:37,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:37,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:37,903 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:37,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:37,903 INFO L85 PathProgramCache]: Analyzing trace with hash 458562000, now seen corresponding path program 1 times [2025-01-10 00:53:37,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:37,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992062222] [2025-01-10 00:53:37,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:37,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:37,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:37,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:37,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 00:53:37,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 00:53:37,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 00:53:38,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:38,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:38,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 00:53:38,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:38,016 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 [2025-01-10 00:53:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:38,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:38,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:38,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992062222] [2025-01-10 00:53:38,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992062222] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:38,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:38,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:53:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258891480] [2025-01-10 00:53:38,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:38,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:53:38,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:38,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:53:38,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:53:38,225 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:53:38,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:38,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:38,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:53:38,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:38,994 INFO L124 PetriNetUnfolderBase]: 1987/4195 cut-off events. [2025-01-10 00:53:38,994 INFO L125 PetriNetUnfolderBase]: For 4454/4456 co-relation queries the response was YES. [2025-01-10 00:53:38,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10529 conditions, 4195 events. 1987/4195 cut-off events. For 4454/4456 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 31022 event pairs, 384 based on Foata normal form. 378/4449 useless extension candidates. Maximal degree in co-relation 9449. Up to 2291 conditions per place. [2025-01-10 00:53:39,006 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2025-01-10 00:53:39,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 191 transitions, 1027 flow [2025-01-10 00:53:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 00:53:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 00:53:39,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2025-01-10 00:53:39,007 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2025-01-10 00:53:39,007 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 469 flow. Second operand 7 states and 448 transitions. [2025-01-10 00:53:39,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 191 transitions, 1027 flow [2025-01-10 00:53:39,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 191 transitions, 1024 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 00:53:39,017 INFO L231 Difference]: Finished difference. Result has 137 places, 124 transitions, 540 flow [2025-01-10 00:53:39,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=540, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2025-01-10 00:53:39,018 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 19 predicate places. [2025-01-10 00:53:39,018 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 540 flow [2025-01-10 00:53:39,018 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) [2025-01-10 00:53:39,018 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:39,018 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:39,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 00:53:39,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:39,219 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:39,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1841625201, now seen corresponding path program 1 times [2025-01-10 00:53:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:39,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439102513] [2025-01-10 00:53:39,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:39,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:39,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:39,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:39,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 00:53:39,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 00:53:39,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 00:53:39,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:39,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:39,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:53:39,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:39,331 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:39,332 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:39,332 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:39,335 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 [2025-01-10 00:53:39,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:53:39,403 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 [2025-01-10 00:53:39,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:53:39,444 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 [2025-01-10 00:53:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:39,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:39,468 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:39,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439102513] [2025-01-10 00:53:39,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439102513] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:39,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:39,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:53:39,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696050729] [2025-01-10 00:53:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:39,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:53:39,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:39,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:53:39,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:53:39,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-01-10 00:53:39,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 124 transitions, 540 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) [2025-01-10 00:53:39,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:39,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-01-10 00:53:39,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:41,126 INFO L124 PetriNetUnfolderBase]: 2645/5099 cut-off events. [2025-01-10 00:53:41,126 INFO L125 PetriNetUnfolderBase]: For 8025/8029 co-relation queries the response was YES. [2025-01-10 00:53:41,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13888 conditions, 5099 events. 2645/5099 cut-off events. For 8025/8029 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 37027 event pairs, 1442 based on Foata normal form. 123/5082 useless extension candidates. Maximal degree in co-relation 12430. Up to 3605 conditions per place. [2025-01-10 00:53:41,148 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 127 selfloop transitions, 18 changer transitions 0/174 dead transitions. [2025-01-10 00:53:41,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 174 transitions, 1033 flow [2025-01-10 00:53:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:53:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 00:53:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2025-01-10 00:53:41,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5258064516129032 [2025-01-10 00:53:41,150 INFO L175 Difference]: Start difference. First operand has 137 places, 124 transitions, 540 flow. Second operand 5 states and 326 transitions. [2025-01-10 00:53:41,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 174 transitions, 1033 flow [2025-01-10 00:53:41,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 174 transitions, 1009 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-10 00:53:41,159 INFO L231 Difference]: Finished difference. Result has 139 places, 138 transitions, 681 flow [2025-01-10 00:53:41,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=681, PETRI_PLACES=139, PETRI_TRANSITIONS=138} [2025-01-10 00:53:41,160 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 21 predicate places. [2025-01-10 00:53:41,160 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 138 transitions, 681 flow [2025-01-10 00:53:41,160 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) [2025-01-10 00:53:41,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:41,160 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:41,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:41,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:41,361 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:41,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1970810627, now seen corresponding path program 1 times [2025-01-10 00:53:41,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:41,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256548181] [2025-01-10 00:53:41,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:41,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:41,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:41,364 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:41,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-10 00:53:41,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 00:53:41,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 00:53:41,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:41,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:41,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-10 00:53:41,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:41,514 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 [2025-01-10 00:53:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:41,761 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 [2025-01-10 00:53:41,775 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:53:41,775 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 [2025-01-10 00:53:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:41,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:41,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:41,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256548181] [2025-01-10 00:53:41,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256548181] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:41,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:41,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:53:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037136250] [2025-01-10 00:53:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:41,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:53:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:41,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:53:41,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:53:42,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-01-10 00:53:42,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 138 transitions, 681 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) [2025-01-10 00:53:42,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:42,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-01-10 00:53:42,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:43,314 INFO L124 PetriNetUnfolderBase]: 2854/5770 cut-off events. [2025-01-10 00:53:43,314 INFO L125 PetriNetUnfolderBase]: For 10472/10478 co-relation queries the response was YES. [2025-01-10 00:53:43,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17324 conditions, 5770 events. 2854/5770 cut-off events. For 10472/10478 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 44482 event pairs, 709 based on Foata normal form. 39/5685 useless extension candidates. Maximal degree in co-relation 15969. Up to 2466 conditions per place. [2025-01-10 00:53:43,343 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 185 selfloop transitions, 21 changer transitions 0/236 dead transitions. [2025-01-10 00:53:43,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 236 transitions, 1530 flow [2025-01-10 00:53:43,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:53:43,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 00:53:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 551 transitions. [2025-01-10 00:53:43,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49372759856630827 [2025-01-10 00:53:43,346 INFO L175 Difference]: Start difference. First operand has 139 places, 138 transitions, 681 flow. Second operand 9 states and 551 transitions. [2025-01-10 00:53:43,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 236 transitions, 1530 flow [2025-01-10 00:53:43,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 236 transitions, 1521 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:43,365 INFO L231 Difference]: Finished difference. Result has 143 places, 136 transitions, 712 flow [2025-01-10 00:53:43,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=712, PETRI_PLACES=143, PETRI_TRANSITIONS=136} [2025-01-10 00:53:43,366 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2025-01-10 00:53:43,366 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 136 transitions, 712 flow [2025-01-10 00:53:43,366 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) [2025-01-10 00:53:43,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:43,366 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:43,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:43,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:43,567 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:43,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash -31356965, now seen corresponding path program 1 times [2025-01-10 00:53:43,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:43,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268930372] [2025-01-10 00:53:43,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:43,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:43,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:43,570 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:43,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-10 00:53:43,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 00:53:43,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 00:53:43,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:43,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:43,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-10 00:53:43,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:43,675 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 [2025-01-10 00:53:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:43,768 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 [2025-01-10 00:53:43,775 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:53:43,775 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 [2025-01-10 00:53:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:43,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:43,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:43,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268930372] [2025-01-10 00:53:43,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268930372] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:43,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:43,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:53:43,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897329301] [2025-01-10 00:53:43,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:43,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:53:43,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:43,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:53:43,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:53:44,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-01-10 00:53:44,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 136 transitions, 712 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) [2025-01-10 00:53:44,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:44,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-01-10 00:53:44,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:45,315 INFO L124 PetriNetUnfolderBase]: 3265/6519 cut-off events. [2025-01-10 00:53:45,315 INFO L125 PetriNetUnfolderBase]: For 13408/13412 co-relation queries the response was YES. [2025-01-10 00:53:45,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19993 conditions, 6519 events. 3265/6519 cut-off events. For 13408/13412 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 51630 event pairs, 927 based on Foata normal form. 76/6504 useless extension candidates. Maximal degree in co-relation 18628. Up to 2312 conditions per place. [2025-01-10 00:53:45,348 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 203 selfloop transitions, 21 changer transitions 0/254 dead transitions. [2025-01-10 00:53:45,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 254 transitions, 1675 flow [2025-01-10 00:53:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:53:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 00:53:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 566 transitions. [2025-01-10 00:53:45,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.507168458781362 [2025-01-10 00:53:45,350 INFO L175 Difference]: Start difference. First operand has 143 places, 136 transitions, 712 flow. Second operand 9 states and 566 transitions. [2025-01-10 00:53:45,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 254 transitions, 1675 flow [2025-01-10 00:53:45,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 254 transitions, 1627 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-01-10 00:53:45,371 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 712 flow [2025-01-10 00:53:45,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=712, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2025-01-10 00:53:45,372 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-01-10 00:53:45,373 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 712 flow [2025-01-10 00:53:45,373 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) [2025-01-10 00:53:45,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:45,373 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:45,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:45,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:45,574 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:45,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash -57542712, now seen corresponding path program 1 times [2025-01-10 00:53:45,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:45,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199183724] [2025-01-10 00:53:45,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:45,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:45,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:45,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:45,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-10 00:53:45,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 00:53:45,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 00:53:45,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:45,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:45,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 00:53:45,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:45,699 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:45,699 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:45,699 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:45,700 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 [2025-01-10 00:53:45,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:53:45,799 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 [2025-01-10 00:53:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:45,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:45,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:45,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199183724] [2025-01-10 00:53:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199183724] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:45,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:45,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:53:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619741886] [2025-01-10 00:53:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:45,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:53:45,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:45,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:53:45,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:53:45,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-01-10 00:53:45,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 712 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) [2025-01-10 00:53:45,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:45,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-01-10 00:53:45,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:48,020 INFO L124 PetriNetUnfolderBase]: 4875/8660 cut-off events. [2025-01-10 00:53:48,020 INFO L125 PetriNetUnfolderBase]: For 20188/20190 co-relation queries the response was YES. [2025-01-10 00:53:48,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28453 conditions, 8660 events. 4875/8660 cut-off events. For 20188/20190 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 63541 event pairs, 2487 based on Foata normal form. 1/8496 useless extension candidates. Maximal degree in co-relation 25318. Up to 5791 conditions per place. [2025-01-10 00:53:48,050 INFO L140 encePairwiseOnDemand]: 113/124 looper letters, 143 selfloop transitions, 49 changer transitions 0/217 dead transitions. [2025-01-10 00:53:48,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 217 transitions, 1591 flow [2025-01-10 00:53:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:53:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 00:53:48,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 359 transitions. [2025-01-10 00:53:48,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4825268817204301 [2025-01-10 00:53:48,052 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 712 flow. Second operand 6 states and 359 transitions. [2025-01-10 00:53:48,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 217 transitions, 1591 flow [2025-01-10 00:53:48,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 217 transitions, 1544 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-01-10 00:53:48,089 INFO L231 Difference]: Finished difference. Result has 144 places, 174 transitions, 1223 flow [2025-01-10 00:53:48,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1223, PETRI_PLACES=144, PETRI_TRANSITIONS=174} [2025-01-10 00:53:48,089 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2025-01-10 00:53:48,090 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 174 transitions, 1223 flow [2025-01-10 00:53:48,090 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) [2025-01-10 00:53:48,090 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:48,090 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:48,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 00:53:48,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:48,294 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:48,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:48,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1783923114, now seen corresponding path program 1 times [2025-01-10 00:53:48,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:48,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126623859] [2025-01-10 00:53:48,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:48,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:48,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:48,297 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:48,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-10 00:53:48,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 00:53:48,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 00:53:48,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:48,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:48,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:53:48,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:48,498 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_89| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_89| (_ bv0 1))))) is different from true [2025-01-10 00:53:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:48,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:48,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:48,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126623859] [2025-01-10 00:53:48,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126623859] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:48,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:48,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:53:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800015336] [2025-01-10 00:53:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:48,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:53:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:48,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:53:48,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2025-01-10 00:53:48,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 124 [2025-01-10 00:53:48,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 174 transitions, 1223 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:48,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:48,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 124 [2025-01-10 00:53:48,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:49,802 INFO L124 PetriNetUnfolderBase]: 4322/8019 cut-off events. [2025-01-10 00:53:49,802 INFO L125 PetriNetUnfolderBase]: For 24956/24961 co-relation queries the response was YES. [2025-01-10 00:53:49,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29383 conditions, 8019 events. 4322/8019 cut-off events. For 24956/24961 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 61226 event pairs, 1891 based on Foata normal form. 1/7899 useless extension candidates. Maximal degree in co-relation 26236. Up to 3804 conditions per place. [2025-01-10 00:53:49,833 INFO L140 encePairwiseOnDemand]: 98/124 looper letters, 161 selfloop transitions, 40 changer transitions 4/224 dead transitions. [2025-01-10 00:53:49,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 224 transitions, 1897 flow [2025-01-10 00:53:49,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:53:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 00:53:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2025-01-10 00:53:49,835 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2025-01-10 00:53:49,835 INFO L175 Difference]: Start difference. First operand has 144 places, 174 transitions, 1223 flow. Second operand 5 states and 250 transitions. [2025-01-10 00:53:49,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 224 transitions, 1897 flow [2025-01-10 00:53:49,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 224 transitions, 1859 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-01-10 00:53:49,890 INFO L231 Difference]: Finished difference. Result has 151 places, 192 transitions, 1478 flow [2025-01-10 00:53:49,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1478, PETRI_PLACES=151, PETRI_TRANSITIONS=192} [2025-01-10 00:53:49,891 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 33 predicate places. [2025-01-10 00:53:49,891 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 192 transitions, 1478 flow [2025-01-10 00:53:49,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:49,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:49,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:49,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-10 00:53:50,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:50,092 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:50,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1685960310, now seen corresponding path program 1 times [2025-01-10 00:53:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165903711] [2025-01-10 00:53:50,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:50,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:50,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:50,095 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:50,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-10 00:53:50,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 00:53:50,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 00:53:50,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:50,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:50,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:53:50,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:50,219 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 [2025-01-10 00:53:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:50,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:50,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:50,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165903711] [2025-01-10 00:53:50,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165903711] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:50,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:50,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:50,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342549772] [2025-01-10 00:53:50,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:50,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:50,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:50,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:50,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:50,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-01-10 00:53:50,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 192 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:50,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:50,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-01-10 00:53:50,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:51,077 INFO L124 PetriNetUnfolderBase]: 4087/7635 cut-off events. [2025-01-10 00:53:51,077 INFO L125 PetriNetUnfolderBase]: For 31228/31424 co-relation queries the response was YES. [2025-01-10 00:53:51,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32265 conditions, 7635 events. 4087/7635 cut-off events. For 31228/31424 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 58564 event pairs, 2234 based on Foata normal form. 60/7484 useless extension candidates. Maximal degree in co-relation 29013. Up to 6348 conditions per place. [2025-01-10 00:53:51,111 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 167 selfloop transitions, 5 changer transitions 0/202 dead transitions. [2025-01-10 00:53:51,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 202 transitions, 1890 flow [2025-01-10 00:53:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2025-01-10 00:53:51,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2025-01-10 00:53:51,113 INFO L175 Difference]: Start difference. First operand has 151 places, 192 transitions, 1478 flow. Second operand 3 states and 201 transitions. [2025-01-10 00:53:51,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 202 transitions, 1890 flow [2025-01-10 00:53:51,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 202 transitions, 1806 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-01-10 00:53:51,214 INFO L231 Difference]: Finished difference. Result has 147 places, 190 transitions, 1400 flow [2025-01-10 00:53:51,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=1390, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1400, PETRI_PLACES=147, PETRI_TRANSITIONS=190} [2025-01-10 00:53:51,214 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 29 predicate places. [2025-01-10 00:53:51,214 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 190 transitions, 1400 flow [2025-01-10 00:53:51,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:51,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:51,215 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:51,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-10 00:53:51,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:51,416 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:51,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:51,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1685960309, now seen corresponding path program 1 times [2025-01-10 00:53:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:51,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099912298] [2025-01-10 00:53:51,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:51,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:51,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:51,419 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:51,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-10 00:53:51,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 00:53:51,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 00:53:51,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:51,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:51,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:53:51,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:51,555 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 [2025-01-10 00:53:51,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:51,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:51,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:51,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099912298] [2025-01-10 00:53:51,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099912298] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:51,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:51,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:51,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811278125] [2025-01-10 00:53:51,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:51,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:51,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:51,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:51,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:51,609 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-01-10 00:53:51,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 190 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:51,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:51,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-01-10 00:53:51,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:52,396 INFO L124 PetriNetUnfolderBase]: 4087/7626 cut-off events. [2025-01-10 00:53:52,396 INFO L125 PetriNetUnfolderBase]: For 28685/28855 co-relation queries the response was YES. [2025-01-10 00:53:52,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31886 conditions, 7626 events. 4087/7626 cut-off events. For 28685/28855 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 58349 event pairs, 2234 based on Foata normal form. 53/7469 useless extension candidates. Maximal degree in co-relation 30358. Up to 6348 conditions per place. [2025-01-10 00:53:52,433 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 167 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2025-01-10 00:53:52,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 200 transitions, 1812 flow [2025-01-10 00:53:52,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:52,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:52,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2025-01-10 00:53:52,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2025-01-10 00:53:52,435 INFO L175 Difference]: Start difference. First operand has 147 places, 190 transitions, 1400 flow. Second operand 3 states and 201 transitions. [2025-01-10 00:53:52,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 200 transitions, 1812 flow [2025-01-10 00:53:52,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 200 transitions, 1802 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:52,518 INFO L231 Difference]: Finished difference. Result has 145 places, 188 transitions, 1396 flow [2025-01-10 00:53:52,518 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=1386, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1396, PETRI_PLACES=145, PETRI_TRANSITIONS=188} [2025-01-10 00:53:52,519 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2025-01-10 00:53:52,519 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 188 transitions, 1396 flow [2025-01-10 00:53:52,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:52,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:52,519 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:52,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:52,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:52,720 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:52,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:52,720 INFO L85 PathProgramCache]: Analyzing trace with hash 725162667, now seen corresponding path program 1 times [2025-01-10 00:53:52,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:52,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935335087] [2025-01-10 00:53:52,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:52,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:52,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:52,724 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:52,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-10 00:53:52,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 00:53:52,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 00:53:52,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:52,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:52,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:53:52,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:52,880 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 [2025-01-10 00:53:52,924 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-01-10 00:53:52,925 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 [2025-01-10 00:53:52,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:52,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:52,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:52,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935335087] [2025-01-10 00:53:52,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935335087] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:52,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:52,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:53:52,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837823732] [2025-01-10 00:53:52,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:52,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:53:52,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:52,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:53:52,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:53:53,012 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2025-01-10 00:53:53,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 188 transitions, 1396 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:53,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:53,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2025-01-10 00:53:53,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:54,068 INFO L124 PetriNetUnfolderBase]: 4287/7963 cut-off events. [2025-01-10 00:53:54,068 INFO L125 PetriNetUnfolderBase]: For 28188/28214 co-relation queries the response was YES. [2025-01-10 00:53:54,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33054 conditions, 7963 events. 4287/7963 cut-off events. For 28188/28214 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 60341 event pairs, 2171 based on Foata normal form. 9/7886 useless extension candidates. Maximal degree in co-relation 31699. Up to 3807 conditions per place. [2025-01-10 00:53:54,109 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 160 selfloop transitions, 21 changer transitions 0/206 dead transitions. [2025-01-10 00:53:54,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 206 transitions, 1874 flow [2025-01-10 00:53:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:53:54,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 00:53:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 233 transitions. [2025-01-10 00:53:54,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46975806451612906 [2025-01-10 00:53:54,110 INFO L175 Difference]: Start difference. First operand has 145 places, 188 transitions, 1396 flow. Second operand 4 states and 233 transitions. [2025-01-10 00:53:54,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 206 transitions, 1874 flow [2025-01-10 00:53:54,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 206 transitions, 1864 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:54,189 INFO L231 Difference]: Finished difference. Result has 142 places, 184 transitions, 1420 flow [2025-01-10 00:53:54,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1420, PETRI_PLACES=142, PETRI_TRANSITIONS=184} [2025-01-10 00:53:54,189 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2025-01-10 00:53:54,190 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 184 transitions, 1420 flow [2025-01-10 00:53:54,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:54,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:54,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:54,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-10 00:53:54,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:54,392 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:54,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash 725162668, now seen corresponding path program 1 times [2025-01-10 00:53:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338803034] [2025-01-10 00:53:54,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:54,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:54,395 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:54,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-10 00:53:54,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 00:53:54,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 00:53:54,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:54,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:54,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:53:54,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:54,547 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 [2025-01-10 00:53:54,552 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 [2025-01-10 00:53:54,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:54,648 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 [2025-01-10 00:53:54,655 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:53:54,656 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 [2025-01-10 00:53:54,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:54,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:54,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:54,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338803034] [2025-01-10 00:53:54,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338803034] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:54,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:54,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:53:54,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630882886] [2025-01-10 00:53:54,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:54,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:53:54,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:54,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:53:54,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:53:54,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2025-01-10 00:53:54,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 184 transitions, 1420 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) [2025-01-10 00:53:54,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:54,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2025-01-10 00:53:54,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:55,629 INFO L124 PetriNetUnfolderBase]: 4031/7514 cut-off events. [2025-01-10 00:53:55,629 INFO L125 PetriNetUnfolderBase]: For 30822/30992 co-relation queries the response was YES. [2025-01-10 00:53:55,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31781 conditions, 7514 events. 4031/7514 cut-off events. For 30822/30992 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 57528 event pairs, 1985 based on Foata normal form. 52/7419 useless extension candidates. Maximal degree in co-relation 28529. Up to 3384 conditions per place. [2025-01-10 00:53:55,665 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 166 selfloop transitions, 19 changer transitions 0/206 dead transitions. [2025-01-10 00:53:55,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 206 transitions, 1934 flow [2025-01-10 00:53:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:53:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 00:53:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2025-01-10 00:53:55,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4475806451612903 [2025-01-10 00:53:55,667 INFO L175 Difference]: Start difference. First operand has 142 places, 184 transitions, 1420 flow. Second operand 4 states and 222 transitions. [2025-01-10 00:53:55,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 206 transitions, 1934 flow [2025-01-10 00:53:55,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 206 transitions, 1892 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 00:53:55,733 INFO L231 Difference]: Finished difference. Result has 138 places, 180 transitions, 1408 flow [2025-01-10 00:53:55,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=1370, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1408, PETRI_PLACES=138, PETRI_TRANSITIONS=180} [2025-01-10 00:53:55,734 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2025-01-10 00:53:55,734 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 180 transitions, 1408 flow [2025-01-10 00:53:55,734 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) [2025-01-10 00:53:55,734 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:55,734 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:55,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-10 00:53:55,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:55,935 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:55,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:55,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1465578083, now seen corresponding path program 1 times [2025-01-10 00:53:55,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360157464] [2025-01-10 00:53:55,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:55,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:55,938 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:55,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-10 00:53:56,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 00:53:56,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 00:53:56,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:56,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:56,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:53:56,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:56,078 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:56,079 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:56,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360157464] [2025-01-10 00:53:56,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360157464] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:56,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:56,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:53:56,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804409337] [2025-01-10 00:53:56,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:56,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:53:56,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:56,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:53:56,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:53:56,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-01-10 00:53:56,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 180 transitions, 1408 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:56,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:56,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-01-10 00:53:56,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:56,369 INFO L124 PetriNetUnfolderBase]: 455/834 cut-off events. [2025-01-10 00:53:56,370 INFO L125 PetriNetUnfolderBase]: For 2294/2294 co-relation queries the response was YES. [2025-01-10 00:53:56,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3246 conditions, 834 events. 455/834 cut-off events. For 2294/2294 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3487 event pairs, 63 based on Foata normal form. 64/879 useless extension candidates. Maximal degree in co-relation 3219. Up to 484 conditions per place. [2025-01-10 00:53:56,373 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 75 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2025-01-10 00:53:56,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 103 transitions, 685 flow [2025-01-10 00:53:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:53:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 00:53:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2025-01-10 00:53:56,375 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4879032258064516 [2025-01-10 00:53:56,375 INFO L175 Difference]: Start difference. First operand has 138 places, 180 transitions, 1408 flow. Second operand 4 states and 242 transitions. [2025-01-10 00:53:56,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 103 transitions, 685 flow [2025-01-10 00:53:56,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 103 transitions, 506 flow, removed 37 selfloop flow, removed 30 redundant places. [2025-01-10 00:53:56,382 INFO L231 Difference]: Finished difference. Result has 91 places, 77 transitions, 246 flow [2025-01-10 00:53:56,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=91, PETRI_TRANSITIONS=77} [2025-01-10 00:53:56,383 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -27 predicate places. [2025-01-10 00:53:56,383 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 77 transitions, 246 flow [2025-01-10 00:53:56,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:56,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:56,383 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:56,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:56,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:56,584 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:56,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash -460667373, now seen corresponding path program 1 times [2025-01-10 00:53:56,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:56,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537997234] [2025-01-10 00:53:56,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:56,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:56,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:56,587 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:56,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-10 00:53:56,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 00:53:56,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 00:53:56,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:56,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:56,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:53:56,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:56,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:56,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:56,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:56,745 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:56,745 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:56,746 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 [2025-01-10 00:53:56,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:53:56,780 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 [2025-01-10 00:53:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:56,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:56,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:56,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537997234] [2025-01-10 00:53:56,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537997234] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:56,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:56,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:56,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767460818] [2025-01-10 00:53:56,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:56,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:56,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:56,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:56,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:56,951 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-01-10 00:53:56,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 77 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2025-01-10 00:53:56,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:56,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-01-10 00:53:56,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:57,214 INFO L124 PetriNetUnfolderBase]: 468/875 cut-off events. [2025-01-10 00:53:57,214 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2025-01-10 00:53:57,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2599 conditions, 875 events. 468/875 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3415 event pairs, 382 based on Foata normal form. 0/853 useless extension candidates. Maximal degree in co-relation 2587. Up to 777 conditions per place. [2025-01-10 00:53:57,217 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 66 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2025-01-10 00:53:57,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 90 transitions, 433 flow [2025-01-10 00:53:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:57,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2025-01-10 00:53:57,219 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.489247311827957 [2025-01-10 00:53:57,219 INFO L175 Difference]: Start difference. First operand has 91 places, 77 transitions, 246 flow. Second operand 3 states and 182 transitions. [2025-01-10 00:53:57,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 90 transitions, 433 flow [2025-01-10 00:53:57,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 421 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 00:53:57,221 INFO L231 Difference]: Finished difference. Result has 92 places, 81 transitions, 282 flow [2025-01-10 00:53:57,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=92, PETRI_TRANSITIONS=81} [2025-01-10 00:53:57,222 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -26 predicate places. [2025-01-10 00:53:57,222 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 81 transitions, 282 flow [2025-01-10 00:53:57,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) [2025-01-10 00:53:57,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:57,222 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:57,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-10 00:53:57,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:57,423 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:57,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:57,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1764922576, now seen corresponding path program 1 times [2025-01-10 00:53:57,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:57,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780079949] [2025-01-10 00:53:57,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:57,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:57,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:57,426 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:57,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-10 00:53:57,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 00:53:57,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 00:53:57,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:57,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:57,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:53:57,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:57,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:57,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:57,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:53:57,589 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:57,590 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:53:57,590 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 [2025-01-10 00:53:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:57,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:57,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:57,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780079949] [2025-01-10 00:53:57,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780079949] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:57,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:57,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:53:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659783337] [2025-01-10 00:53:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:57,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:53:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:57,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:53:57,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:53:57,710 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-01-10 00:53:57,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 81 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:57,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:57,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-01-10 00:53:57,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:57,993 INFO L124 PetriNetUnfolderBase]: 477/902 cut-off events. [2025-01-10 00:53:57,994 INFO L125 PetriNetUnfolderBase]: For 979/979 co-relation queries the response was YES. [2025-01-10 00:53:57,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 902 events. 477/902 cut-off events. For 979/979 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3553 event pairs, 395 based on Foata normal form. 0/888 useless extension candidates. Maximal degree in co-relation 2681. Up to 800 conditions per place. [2025-01-10 00:53:57,996 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 68 selfloop transitions, 7 changer transitions 0/94 dead transitions. [2025-01-10 00:53:57,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 94 transitions, 499 flow [2025-01-10 00:53:57,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:53:57,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:53:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2025-01-10 00:53:57,997 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48655913978494625 [2025-01-10 00:53:57,997 INFO L175 Difference]: Start difference. First operand has 92 places, 81 transitions, 282 flow. Second operand 3 states and 181 transitions. [2025-01-10 00:53:57,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 94 transitions, 499 flow [2025-01-10 00:53:57,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 94 transitions, 467 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:57,999 INFO L231 Difference]: Finished difference. Result has 94 places, 86 transitions, 328 flow [2025-01-10 00:53:58,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=94, PETRI_TRANSITIONS=86} [2025-01-10 00:53:58,000 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -24 predicate places. [2025-01-10 00:53:58,000 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 86 transitions, 328 flow [2025-01-10 00:53:58,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:58,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:58,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:58,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-01-10 00:53:58,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:58,201 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:58,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:58,202 INFO L85 PathProgramCache]: Analyzing trace with hash 664668513, now seen corresponding path program 1 times [2025-01-10 00:53:58,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:58,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115694468] [2025-01-10 00:53:58,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:53:58,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:58,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:58,205 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:58,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-10 00:53:58,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 00:53:58,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 00:53:58,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:53:58,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:58,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 00:53:58,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:58,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-01-10 00:53:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:58,470 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:58,470 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:58,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115694468] [2025-01-10 00:53:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115694468] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:58,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:58,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 00:53:58,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037301318] [2025-01-10 00:53:58,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:58,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:53:58,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:58,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:53:58,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:53:58,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:53:58,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 86 transitions, 328 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:58,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:58,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:53:58,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:53:59,329 INFO L124 PetriNetUnfolderBase]: 1107/2060 cut-off events. [2025-01-10 00:53:59,330 INFO L125 PetriNetUnfolderBase]: For 2721/2721 co-relation queries the response was YES. [2025-01-10 00:53:59,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6303 conditions, 2060 events. 1107/2060 cut-off events. For 2721/2721 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11039 event pairs, 176 based on Foata normal form. 16/2054 useless extension candidates. Maximal degree in co-relation 6289. Up to 550 conditions per place. [2025-01-10 00:53:59,336 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 163 selfloop transitions, 24 changer transitions 0/209 dead transitions. [2025-01-10 00:53:59,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 209 transitions, 1268 flow [2025-01-10 00:53:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 00:53:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-01-10 00:53:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 631 transitions. [2025-01-10 00:53:59,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4626099706744868 [2025-01-10 00:53:59,338 INFO L175 Difference]: Start difference. First operand has 94 places, 86 transitions, 328 flow. Second operand 11 states and 631 transitions. [2025-01-10 00:53:59,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 209 transitions, 1268 flow [2025-01-10 00:53:59,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 209 transitions, 1232 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-01-10 00:53:59,346 INFO L231 Difference]: Finished difference. Result has 109 places, 103 transitions, 499 flow [2025-01-10 00:53:59,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=499, PETRI_PLACES=109, PETRI_TRANSITIONS=103} [2025-01-10 00:53:59,346 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -9 predicate places. [2025-01-10 00:53:59,346 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 103 transitions, 499 flow [2025-01-10 00:53:59,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:59,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:53:59,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:53:59,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-10 00:53:59,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:59,547 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:53:59,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:53:59,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1149883073, now seen corresponding path program 2 times [2025-01-10 00:53:59,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:53:59,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173639156] [2025-01-10 00:53:59,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:53:59,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:53:59,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:53:59,550 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:53:59,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-01-10 00:53:59,702 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-01-10 00:53:59,753 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 00:53:59,753 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:53:59,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:53:59,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 00:53:59,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:53:59,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-01-10 00:53:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:53:59,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:53:59,862 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:53:59,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173639156] [2025-01-10 00:53:59,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173639156] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:53:59,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:53:59,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 00:53:59,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306140954] [2025-01-10 00:53:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:53:59,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:53:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:53:59,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:53:59,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:53:59,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:53:59,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 103 transitions, 499 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:53:59,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:53:59,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:53:59,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:54:00,734 INFO L124 PetriNetUnfolderBase]: 1301/2462 cut-off events. [2025-01-10 00:54:00,734 INFO L125 PetriNetUnfolderBase]: For 6565/6565 co-relation queries the response was YES. [2025-01-10 00:54:00,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8935 conditions, 2462 events. 1301/2462 cut-off events. For 6565/6565 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 14035 event pairs, 82 based on Foata normal form. 16/2412 useless extension candidates. Maximal degree in co-relation 8914. Up to 854 conditions per place. [2025-01-10 00:54:00,744 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 147 selfloop transitions, 39 changer transitions 0/208 dead transitions. [2025-01-10 00:54:00,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 208 transitions, 1498 flow [2025-01-10 00:54:00,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:54:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 00:54:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 651 transitions. [2025-01-10 00:54:00,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4375 [2025-01-10 00:54:00,749 INFO L175 Difference]: Start difference. First operand has 109 places, 103 transitions, 499 flow. Second operand 12 states and 651 transitions. [2025-01-10 00:54:00,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 208 transitions, 1498 flow [2025-01-10 00:54:00,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 208 transitions, 1461 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-01-10 00:54:00,761 INFO L231 Difference]: Finished difference. Result has 120 places, 121 transitions, 740 flow [2025-01-10 00:54:00,761 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=740, PETRI_PLACES=120, PETRI_TRANSITIONS=121} [2025-01-10 00:54:00,762 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 2 predicate places. [2025-01-10 00:54:00,762 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 121 transitions, 740 flow [2025-01-10 00:54:00,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:54:00,762 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:54:00,762 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:54:00,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-01-10 00:54:00,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:54:00,963 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:54:00,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:54:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1364745161, now seen corresponding path program 3 times [2025-01-10 00:54:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:54:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904740928] [2025-01-10 00:54:00,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 00:54:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:54:00,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:54:00,966 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:54:00,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-10 00:54:01,098 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 1 equivalence classes. [2025-01-10 00:54:01,137 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 00:54:01,138 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 00:54:01,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:54:01,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 00:54:01,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:54:01,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-01-10 00:54:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:54:01,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:54:01,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:54:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904740928] [2025-01-10 00:54:01,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904740928] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:54:01,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:54:01,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 00:54:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547216605] [2025-01-10 00:54:01,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:54:01,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:54:01,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:54:01,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:54:01,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:54:01,241 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:54:01,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 740 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:54:01,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:54:01,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:54:01,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:54:02,107 INFO L124 PetriNetUnfolderBase]: 1197/2306 cut-off events. [2025-01-10 00:54:02,107 INFO L125 PetriNetUnfolderBase]: For 8144/8144 co-relation queries the response was YES. [2025-01-10 00:54:02,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9113 conditions, 2306 events. 1197/2306 cut-off events. For 8144/8144 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 13087 event pairs, 154 based on Foata normal form. 16/2256 useless extension candidates. Maximal degree in co-relation 9088. Up to 1432 conditions per place. [2025-01-10 00:54:02,114 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 40 changer transitions 0/182 dead transitions. [2025-01-10 00:54:02,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 182 transitions, 1488 flow [2025-01-10 00:54:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:54:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 00:54:02,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 541 transitions. [2025-01-10 00:54:02,116 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43629032258064515 [2025-01-10 00:54:02,116 INFO L175 Difference]: Start difference. First operand has 120 places, 121 transitions, 740 flow. Second operand 10 states and 541 transitions. [2025-01-10 00:54:02,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 182 transitions, 1488 flow [2025-01-10 00:54:02,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 182 transitions, 1405 flow, removed 16 selfloop flow, removed 6 redundant places. [2025-01-10 00:54:02,125 INFO L231 Difference]: Finished difference. Result has 129 places, 138 transitions, 1017 flow [2025-01-10 00:54:02,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1017, PETRI_PLACES=129, PETRI_TRANSITIONS=138} [2025-01-10 00:54:02,127 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2025-01-10 00:54:02,127 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 138 transitions, 1017 flow [2025-01-10 00:54:02,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:54:02,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:54:02,127 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:54:02,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-01-10 00:54:02,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:54:02,332 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:54:02,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:54:02,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1261138875, now seen corresponding path program 4 times [2025-01-10 00:54:02,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:54:02,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145781466] [2025-01-10 00:54:02,334 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 00:54:02,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:54:02,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:54:02,336 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:54:02,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-10 00:54:02,503 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 28 statements into 2 equivalence classes. [2025-01-10 00:54:02,557 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 00:54:02,557 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 00:54:02,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:54:02,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 00:54:02,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:54:02,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-01-10 00:54:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:54:02,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:54:02,656 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:54:02,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145781466] [2025-01-10 00:54:02,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145781466] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:54:02,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:54:02,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 00:54:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820503199] [2025-01-10 00:54:02,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:54:02,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:54:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:54:02,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:54:02,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:54:02,657 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-01-10 00:54:02,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 138 transitions, 1017 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:54:02,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:54:02,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-01-10 00:54:02,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:54:03,719 INFO L124 PetriNetUnfolderBase]: 1412/2790 cut-off events. [2025-01-10 00:54:03,720 INFO L125 PetriNetUnfolderBase]: For 11096/11096 co-relation queries the response was YES. [2025-01-10 00:54:03,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11540 conditions, 2790 events. 1412/2790 cut-off events. For 11096/11096 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16902 event pairs, 167 based on Foata normal form. 32/2733 useless extension candidates. Maximal degree in co-relation 11509. Up to 1352 conditions per place. [2025-01-10 00:54:03,732 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 188 selfloop transitions, 50 changer transitions 0/260 dead transitions. [2025-01-10 00:54:03,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 260 transitions, 2244 flow [2025-01-10 00:54:03,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:54:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 00:54:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 680 transitions. [2025-01-10 00:54:03,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45698924731182794 [2025-01-10 00:54:03,734 INFO L175 Difference]: Start difference. First operand has 129 places, 138 transitions, 1017 flow. Second operand 12 states and 680 transitions. [2025-01-10 00:54:03,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 260 transitions, 2244 flow [2025-01-10 00:54:03,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 260 transitions, 2126 flow, removed 54 selfloop flow, removed 2 redundant places. [2025-01-10 00:54:03,755 INFO L231 Difference]: Finished difference. Result has 144 places, 152 transitions, 1287 flow [2025-01-10 00:54:03,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1287, PETRI_PLACES=144, PETRI_TRANSITIONS=152} [2025-01-10 00:54:03,755 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2025-01-10 00:54:03,755 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 152 transitions, 1287 flow [2025-01-10 00:54:03,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:54:03,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:54:03,756 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:54:03,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-01-10 00:54:03,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:54:03,960 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-01-10 00:54:03,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:54:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash 910036231, now seen corresponding path program 5 times [2025-01-10 00:54:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:54:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956404296] [2025-01-10 00:54:03,961 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 00:54:03,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:54:03,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:54:03,964 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:54:03,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-01-10 00:54:04,110 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-01-10 00:54:44,346 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 00:54:44,346 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:54:44,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 00:54:44,346 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 00:54:44,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes.