./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/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/weaver/fibonacci.wvr.c', '-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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e'] 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/weaver/fibonacci.wvr.c -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 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:30:43,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:30:43,437 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:30:43,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:30:43,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:30:43,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:30:43,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:30:43,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:30:43,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:30:43,457 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:30:43,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:30:43,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:30:43,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:30:43,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:30:43,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:30:43,459 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:30:43,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:30:43,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:30:43,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:30:43,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:30:43,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:30:43,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:30:43,462 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-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 -> 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e [2024-11-07 19:30:43,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:30:43,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:30:43,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:30:43,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:30:43,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:30:43,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/fibonacci.wvr.c [2024-11-07 19:30:44,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:30:45,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:30:45,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/fibonacci.wvr.c [2024-11-07 19:30:45,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/963e8e43b/901d8328eb2a4e049f146aaf2d97a057/FLAG51437b3ec [2024-11-07 19:30:45,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/963e8e43b/901d8328eb2a4e049f146aaf2d97a057 [2024-11-07 19:30:45,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:30:45,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:30:45,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:30:45,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:30:45,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:30:45,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4411e3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45, skipping insertion in model container [2024-11-07 19:30:45,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:30:45,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:30:45,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:30:45,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:30:45,371 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:30:45,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45 WrapperNode [2024-11-07 19:30:45,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:30:45,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:30:45,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:30:45,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:30:45,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,400 INFO L138 Inliner]: procedures = 22, calls = 19, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 162 [2024-11-07 19:30:45,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:30:45,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:30:45,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:30:45,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:30:45,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,417 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 19:30:45,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:30:45,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:30:45,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:30:45,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:30:45,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (1/1) ... [2024-11-07 19:30:45,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:30:45,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:45,454 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) [2024-11-07 19:30:45,457 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 [2024-11-07 19:30:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:30:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:30:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:30:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:30:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:30:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:30:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:30:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:30:45,474 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 19:30:45,538 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:30:45,540 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:30:45,722 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:30:45,722 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:30:45,975 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:30:45,976 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:30:45,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:30:45 BoogieIcfgContainer [2024-11-07 19:30:45,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:30:45,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:30:45,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:30:45,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:30:45,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:30:45" (1/3) ... [2024-11-07 19:30:45,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c139690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:30:45, skipping insertion in model container [2024-11-07 19:30:45,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:30:45" (2/3) ... [2024-11-07 19:30:45,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c139690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:30:45, skipping insertion in model container [2024-11-07 19:30:45,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:30:45" (3/3) ... [2024-11-07 19:30:45,984 INFO L112 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2024-11-07 19:30:45,994 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:30:45,995 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:30:45,995 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:30:46,031 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:30:46,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 20 transitions, 54 flow [2024-11-07 19:30:46,080 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-07 19:30:46,082 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:30:46,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 2/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2024-11-07 19:30:46,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 20 transitions, 54 flow [2024-11-07 19:30:46,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 17 transitions, 46 flow [2024-11-07 19:30:46,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:30:46,105 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;@7f7c64a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:30:46,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:30:46,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:30:46,114 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-11-07 19:30:46,114 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:30:46,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:46,115 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:46,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:46,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:46,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1376092147, now seen corresponding path program 1 times [2024-11-07 19:30:46,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:46,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656648835] [2024-11-07 19:30:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:46,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:46,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656648835] [2024-11-07 19:30:46,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656648835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:46,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:46,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:30:46,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756062701] [2024-11-07 19:30:46,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:46,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:46,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:46,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:46,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:46,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-07 19:30:46,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:46,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:46,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:46,776 INFO L124 PetriNetUnfolderBase]: 67/128 cut-off events. [2024-11-07 19:30:46,776 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-07 19:30:46,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 128 events. 67/128 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 341 event pairs, 14 based on Foata normal form. 3/101 useless extension candidates. Maximal degree in co-relation 222. Up to 72 conditions per place. [2024-11-07 19:30:46,778 INFO L140 encePairwiseOnDemand]: 13/20 looper letters, 25 selfloop transitions, 5 changer transitions 4/35 dead transitions. [2024-11-07 19:30:46,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 35 transitions, 168 flow [2024-11-07 19:30:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:46,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2024-11-07 19:30:46,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.57 [2024-11-07 19:30:46,787 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 46 flow. Second operand 5 states and 57 transitions. [2024-11-07 19:30:46,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 35 transitions, 168 flow [2024-11-07 19:30:46,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 35 transitions, 148 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:30:46,791 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 68 flow [2024-11-07 19:30:46,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=68, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2024-11-07 19:30:46,795 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2024-11-07 19:30:46,795 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 68 flow [2024-11-07 19:30:46,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-07 19:30:46,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:46,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:46,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:30:46,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:46,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2082207311, now seen corresponding path program 2 times [2024-11-07 19:30:46,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:46,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029908909] [2024-11-07 19:30:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:46,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:46,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:46,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029908909] [2024-11-07 19:30:46,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029908909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:46,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:46,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:30:46,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421846252] [2024-11-07 19:30:46,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:46,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:46,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:46,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:46,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:46,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 68 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-07 19:30:46,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:46,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:46,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:47,098 INFO L124 PetriNetUnfolderBase]: 66/121 cut-off events. [2024-11-07 19:30:47,098 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-07 19:30:47,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 121 events. 66/121 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 317 event pairs, 11 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 325. Up to 72 conditions per place. [2024-11-07 19:30:47,099 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 24 selfloop transitions, 6 changer transitions 4/35 dead transitions. [2024-11-07 19:30:47,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 35 transitions, 182 flow [2024-11-07 19:30:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-11-07 19:30:47,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54 [2024-11-07 19:30:47,102 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 68 flow. Second operand 5 states and 54 transitions. [2024-11-07 19:30:47,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 35 transitions, 182 flow [2024-11-07 19:30:47,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 35 transitions, 180 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 19:30:47,104 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 100 flow [2024-11-07 19:30:47,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2024-11-07 19:30:47,106 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 6 predicate places. [2024-11-07 19:30:47,106 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 100 flow [2024-11-07 19:30:47,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-07 19:30:47,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:47,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:47,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:30:47,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:47,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1488777393, now seen corresponding path program 1 times [2024-11-07 19:30:47,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:47,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932716521] [2024-11-07 19:30:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:47,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:47,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:47,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932716521] [2024-11-07 19:30:47,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932716521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:47,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:47,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:47,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373337260] [2024-11-07 19:30:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:47,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:47,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:47,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:47,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:47,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:47,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:47,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:47,277 INFO L124 PetriNetUnfolderBase]: 80/140 cut-off events. [2024-11-07 19:30:47,277 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-11-07 19:30:47,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 140 events. 80/140 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 393 event pairs, 29 based on Foata normal form. 3/134 useless extension candidates. Maximal degree in co-relation 456. Up to 102 conditions per place. [2024-11-07 19:30:47,280 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 24 selfloop transitions, 10 changer transitions 3/38 dead transitions. [2024-11-07 19:30:47,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 256 flow [2024-11-07 19:30:47,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2024-11-07 19:30:47,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:30:47,281 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 100 flow. Second operand 5 states and 50 transitions. [2024-11-07 19:30:47,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 256 flow [2024-11-07 19:30:47,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 242 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-07 19:30:47,283 INFO L231 Difference]: Finished difference. Result has 32 places, 27 transitions, 168 flow [2024-11-07 19:30:47,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2024-11-07 19:30:47,284 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 10 predicate places. [2024-11-07 19:30:47,284 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 168 flow [2024-11-07 19:30:47,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:47,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:47,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:47,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:30:47,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:47,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1405972326, now seen corresponding path program 1 times [2024-11-07 19:30:47,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:47,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027400003] [2024-11-07 19:30:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:47,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:47,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027400003] [2024-11-07 19:30:47,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027400003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690226571] [2024-11-07 19:30:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:47,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:47,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:47,352 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) [2024-11-07 19:30:47,357 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 [2024-11-07 19:30:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:47,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:30:47,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:47,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:47,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690226571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:47,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:47,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-07 19:30:47,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432407705] [2024-11-07 19:30:47,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:47,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 19:30:47,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:47,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 19:30:47,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 19:30:47,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:47,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 168 flow. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2024-11-07 19:30:47,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:47,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:47,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:47,666 INFO L124 PetriNetUnfolderBase]: 90/161 cut-off events. [2024-11-07 19:30:47,667 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-11-07 19:30:47,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 161 events. 90/161 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 473 event pairs, 15 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 542. Up to 55 conditions per place. [2024-11-07 19:30:47,670 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 42 selfloop transitions, 13 changer transitions 0/56 dead transitions. [2024-11-07 19:30:47,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 56 transitions, 385 flow [2024-11-07 19:30:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:47,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 74 transitions. [2024-11-07 19:30:47,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5285714285714286 [2024-11-07 19:30:47,672 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 168 flow. Second operand 7 states and 74 transitions. [2024-11-07 19:30:47,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 56 transitions, 385 flow [2024-11-07 19:30:47,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 364 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-07 19:30:47,674 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 211 flow [2024-11-07 19:30:47,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=211, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-07 19:30:47,676 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 15 predicate places. [2024-11-07 19:30:47,676 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 211 flow [2024-11-07 19:30:47,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2024-11-07 19:30:47,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:47,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:47,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 19:30:47,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:47,878 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:47,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:47,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2005550949, now seen corresponding path program 2 times [2024-11-07 19:30:47,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:47,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976031709] [2024-11-07 19:30:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:47,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:47,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976031709] [2024-11-07 19:30:47,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976031709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:47,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:47,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:47,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458344069] [2024-11-07 19:30:47,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:47,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:47,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:47,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:47,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:47,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:47,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:47,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:48,021 INFO L124 PetriNetUnfolderBase]: 89/163 cut-off events. [2024-11-07 19:30:48,021 INFO L125 PetriNetUnfolderBase]: For 241/241 co-relation queries the response was YES. [2024-11-07 19:30:48,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 163 events. 89/163 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 493 event pairs, 22 based on Foata normal form. 3/154 useless extension candidates. Maximal degree in co-relation 489. Up to 92 conditions per place. [2024-11-07 19:30:48,023 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 37 selfloop transitions, 7 changer transitions 5/50 dead transitions. [2024-11-07 19:30:48,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 393 flow [2024-11-07 19:30:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-11-07 19:30:48,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54 [2024-11-07 19:30:48,026 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 211 flow. Second operand 5 states and 54 transitions. [2024-11-07 19:30:48,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 393 flow [2024-11-07 19:30:48,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 368 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-07 19:30:48,031 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 208 flow [2024-11-07 19:30:48,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2024-11-07 19:30:48,033 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 20 predicate places. [2024-11-07 19:30:48,034 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 208 flow [2024-11-07 19:30:48,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:48,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:48,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:48,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:30:48,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:48,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1198369694, now seen corresponding path program 2 times [2024-11-07 19:30:48,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:48,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109060004] [2024-11-07 19:30:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:48,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:48,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:48,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109060004] [2024-11-07 19:30:48,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109060004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:48,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369052915] [2024-11-07 19:30:48,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:30:48,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:48,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:48,118 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) [2024-11-07 19:30:48,119 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 [2024-11-07 19:30:48,173 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:30:48,174 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:48,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:30:48,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:48,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:48,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369052915] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:48,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:48,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 19:30:48,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796705104] [2024-11-07 19:30:48,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:48,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:30:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:30:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:30:48,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:48,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 208 flow. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 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) [2024-11-07 19:30:48,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:48,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:48,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:48,501 INFO L124 PetriNetUnfolderBase]: 106/187 cut-off events. [2024-11-07 19:30:48,501 INFO L125 PetriNetUnfolderBase]: For 446/446 co-relation queries the response was YES. [2024-11-07 19:30:48,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 187 events. 106/187 cut-off events. For 446/446 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 542 event pairs, 29 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 755. Up to 143 conditions per place. [2024-11-07 19:30:48,503 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 28 selfloop transitions, 21 changer transitions 1/51 dead transitions. [2024-11-07 19:30:48,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 428 flow [2024-11-07 19:30:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:30:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:30:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 59 transitions. [2024-11-07 19:30:48,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-11-07 19:30:48,507 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 208 flow. Second operand 6 states and 59 transitions. [2024-11-07 19:30:48,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 428 flow [2024-11-07 19:30:48,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 409 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:48,514 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 345 flow [2024-11-07 19:30:48,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=345, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2024-11-07 19:30:48,515 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 25 predicate places. [2024-11-07 19:30:48,515 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 345 flow [2024-11-07 19:30:48,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 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) [2024-11-07 19:30:48,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:48,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:48,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 19:30:48,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:48,715 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:48,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1987061216, now seen corresponding path program 3 times [2024-11-07 19:30:48,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:48,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074501784] [2024-11-07 19:30:48,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:48,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:48,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:48,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074501784] [2024-11-07 19:30:48,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074501784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:48,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:48,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:48,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076805787] [2024-11-07 19:30:48,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:48,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:48,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:48,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:48,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:48,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:48,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:48,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:48,881 INFO L124 PetriNetUnfolderBase]: 104/190 cut-off events. [2024-11-07 19:30:48,882 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-07 19:30:48,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 190 events. 104/190 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 561 event pairs, 27 based on Foata normal form. 2/187 useless extension candidates. Maximal degree in co-relation 812. Up to 118 conditions per place. [2024-11-07 19:30:48,883 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 33 selfloop transitions, 16 changer transitions 3/53 dead transitions. [2024-11-07 19:30:48,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 501 flow [2024-11-07 19:30:48,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:48,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2024-11-07 19:30:48,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:30:48,885 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 345 flow. Second operand 5 states and 50 transitions. [2024-11-07 19:30:48,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 501 flow [2024-11-07 19:30:48,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 53 transitions, 461 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-11-07 19:30:48,887 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 332 flow [2024-11-07 19:30:48,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=332, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-11-07 19:30:48,888 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 29 predicate places. [2024-11-07 19:30:48,888 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 332 flow [2024-11-07 19:30:48,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:48,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:48,889 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:48,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:30:48,890 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:48,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:48,893 INFO L85 PathProgramCache]: Analyzing trace with hash -369403695, now seen corresponding path program 3 times [2024-11-07 19:30:48,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:48,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174736469] [2024-11-07 19:30:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:48,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:48,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:48,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174736469] [2024-11-07 19:30:48,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174736469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:48,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528510653] [2024-11-07 19:30:48,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:30:48,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:48,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:48,946 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) [2024-11-07 19:30:48,952 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 [2024-11-07 19:30:49,006 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:30:49,006 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:49,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:30:49,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:49,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:49,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528510653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:49,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:49,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-07 19:30:49,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379608220] [2024-11-07 19:30:49,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:49,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 19:30:49,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 19:30:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 19:30:49,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:49,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 332 flow. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2024-11-07 19:30:49,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:49,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:49,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:49,303 INFO L124 PetriNetUnfolderBase]: 108/194 cut-off events. [2024-11-07 19:30:49,304 INFO L125 PetriNetUnfolderBase]: For 707/707 co-relation queries the response was YES. [2024-11-07 19:30:49,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 194 events. 108/194 cut-off events. For 707/707 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 570 event pairs, 12 based on Foata normal form. 4/198 useless extension candidates. Maximal degree in co-relation 888. Up to 60 conditions per place. [2024-11-07 19:30:49,305 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 41 selfloop transitions, 22 changer transitions 0/64 dead transitions. [2024-11-07 19:30:49,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 64 transitions, 589 flow [2024-11-07 19:30:49,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:49,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 69 transitions. [2024-11-07 19:30:49,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2024-11-07 19:30:49,312 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 332 flow. Second operand 7 states and 69 transitions. [2024-11-07 19:30:49,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 64 transitions, 589 flow [2024-11-07 19:30:49,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 547 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-07 19:30:49,319 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 392 flow [2024-11-07 19:30:49,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=392, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-11-07 19:30:49,320 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 31 predicate places. [2024-11-07 19:30:49,320 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 392 flow [2024-11-07 19:30:49,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2024-11-07 19:30:49,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:49,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:49,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 19:30:49,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:49,525 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:49,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash -376227406, now seen corresponding path program 4 times [2024-11-07 19:30:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:49,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368716508] [2024-11-07 19:30:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:49,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:49,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:49,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:49,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368716508] [2024-11-07 19:30:49,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368716508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:49,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:49,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:49,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126182963] [2024-11-07 19:30:49,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:49,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:49,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:49,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:49,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:49,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:49,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:49,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:49,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:49,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:49,638 INFO L124 PetriNetUnfolderBase]: 107/195 cut-off events. [2024-11-07 19:30:49,638 INFO L125 PetriNetUnfolderBase]: For 822/822 co-relation queries the response was YES. [2024-11-07 19:30:49,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 195 events. 107/195 cut-off events. For 822/822 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 607 event pairs, 32 based on Foata normal form. 2/197 useless extension candidates. Maximal degree in co-relation 817. Up to 154 conditions per place. [2024-11-07 19:30:49,640 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 34 selfloop transitions, 15 changer transitions 2/52 dead transitions. [2024-11-07 19:30:49,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 531 flow [2024-11-07 19:30:49,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:49,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2024-11-07 19:30:49,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-11-07 19:30:49,641 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 392 flow. Second operand 5 states and 48 transitions. [2024-11-07 19:30:49,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 531 flow [2024-11-07 19:30:49,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 52 transitions, 475 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:49,646 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 357 flow [2024-11-07 19:30:49,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=357, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-11-07 19:30:49,647 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 32 predicate places. [2024-11-07 19:30:49,648 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 357 flow [2024-11-07 19:30:49,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:49,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:49,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:49,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 19:30:49,649 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:49,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:49,649 INFO L85 PathProgramCache]: Analyzing trace with hash -425271452, now seen corresponding path program 5 times [2024-11-07 19:30:49,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:49,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752301324] [2024-11-07 19:30:49,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:49,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:49,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:49,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752301324] [2024-11-07 19:30:49,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752301324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:49,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013471221] [2024-11-07 19:30:49,701 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:30:49,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:49,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:49,703 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) [2024-11-07 19:30:49,706 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 [2024-11-07 19:30:49,751 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:30:49,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:49,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:30:49,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:49,776 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:49,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013471221] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:49,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:49,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 19:30:49,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919641837] [2024-11-07 19:30:49,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:49,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:30:49,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:49,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:30:49,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:30:49,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:49,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 357 flow. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-07 19:30:49,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:49,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:49,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:49,918 INFO L124 PetriNetUnfolderBase]: 108/199 cut-off events. [2024-11-07 19:30:49,919 INFO L125 PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES. [2024-11-07 19:30:49,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 199 events. 108/199 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 618 event pairs, 17 based on Foata normal form. 5/204 useless extension candidates. Maximal degree in co-relation 768. Up to 93 conditions per place. [2024-11-07 19:30:49,921 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 41 selfloop transitions, 27 changer transitions 0/69 dead transitions. [2024-11-07 19:30:49,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 69 transitions, 612 flow [2024-11-07 19:30:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:30:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:30:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2024-11-07 19:30:49,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.455 [2024-11-07 19:30:49,923 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 357 flow. Second operand 10 states and 91 transitions. [2024-11-07 19:30:49,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 69 transitions, 612 flow [2024-11-07 19:30:49,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 69 transitions, 582 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:49,925 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 422 flow [2024-11-07 19:30:49,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=422, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-07 19:30:49,926 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 39 predicate places. [2024-11-07 19:30:49,926 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 422 flow [2024-11-07 19:30:49,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-07 19:30:49,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:49,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:49,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 19:30:50,131 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,SelfDestructingSolverStorable9 [2024-11-07 19:30:50,132 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:50,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2070215271, now seen corresponding path program 4 times [2024-11-07 19:30:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:50,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214060714] [2024-11-07 19:30:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214060714] [2024-11-07 19:30:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214060714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:50,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:50,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:50,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807239602] [2024-11-07 19:30:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:50,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:50,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:50,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:50,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:50,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:50,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:50,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:50,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:50,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:50,242 INFO L124 PetriNetUnfolderBase]: 114/209 cut-off events. [2024-11-07 19:30:50,243 INFO L125 PetriNetUnfolderBase]: For 734/734 co-relation queries the response was YES. [2024-11-07 19:30:50,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 209 events. 114/209 cut-off events. For 734/734 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 657 event pairs, 32 based on Foata normal form. 4/213 useless extension candidates. Maximal degree in co-relation 987. Up to 165 conditions per place. [2024-11-07 19:30:50,244 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 42 selfloop transitions, 16 changer transitions 0/59 dead transitions. [2024-11-07 19:30:50,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 604 flow [2024-11-07 19:30:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:50,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2024-11-07 19:30:50,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:30:50,246 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 422 flow. Second operand 5 states and 50 transitions. [2024-11-07 19:30:50,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 604 flow [2024-11-07 19:30:50,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 59 transitions, 534 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-07 19:30:50,251 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 395 flow [2024-11-07 19:30:50,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=395, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-07 19:30:50,252 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 38 predicate places. [2024-11-07 19:30:50,252 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 395 flow [2024-11-07 19:30:50,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:50,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:50,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:50,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 19:30:50,253 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:50,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:50,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1295731652, now seen corresponding path program 6 times [2024-11-07 19:30:50,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:50,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146455572] [2024-11-07 19:30:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:50,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:50,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:50,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146455572] [2024-11-07 19:30:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146455572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:50,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:50,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:50,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608397991] [2024-11-07 19:30:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:50,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:50,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:50,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:50,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:50,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:50,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 395 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:50,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:50,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:50,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:50,373 INFO L124 PetriNetUnfolderBase]: 110/197 cut-off events. [2024-11-07 19:30:50,374 INFO L125 PetriNetUnfolderBase]: For 672/672 co-relation queries the response was YES. [2024-11-07 19:30:50,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 197 events. 110/197 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 595 event pairs, 29 based on Foata normal form. 2/199 useless extension candidates. Maximal degree in co-relation 896. Up to 143 conditions per place. [2024-11-07 19:30:50,377 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 32 selfloop transitions, 19 changer transitions 2/54 dead transitions. [2024-11-07 19:30:50,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 509 flow [2024-11-07 19:30:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:50,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-11-07 19:30:50,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47 [2024-11-07 19:30:50,378 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 395 flow. Second operand 5 states and 47 transitions. [2024-11-07 19:30:50,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 509 flow [2024-11-07 19:30:50,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 473 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:50,381 INFO L231 Difference]: Finished difference. Result has 61 places, 48 transitions, 378 flow [2024-11-07 19:30:50,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=378, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2024-11-07 19:30:50,382 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 39 predicate places. [2024-11-07 19:30:50,382 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 378 flow [2024-11-07 19:30:50,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:50,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:50,382 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:50,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 19:30:50,382 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:50,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash -350969669, now seen corresponding path program 5 times [2024-11-07 19:30:50,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:50,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556452291] [2024-11-07 19:30:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:50,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:50,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:50,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556452291] [2024-11-07 19:30:50,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556452291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:50,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068306267] [2024-11-07 19:30:50,424 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:30:50,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:50,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:50,425 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) [2024-11-07 19:30:50,427 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 [2024-11-07 19:30:50,471 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:30:50,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:50,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:30:50,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:50,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:50,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068306267] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:50,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:50,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 19:30:50,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084173288] [2024-11-07 19:30:50,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:50,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:30:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:50,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:30:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:30:50,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:50,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 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) [2024-11-07 19:30:50,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:50,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:50,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:50,632 INFO L124 PetriNetUnfolderBase]: 111/200 cut-off events. [2024-11-07 19:30:50,632 INFO L125 PetriNetUnfolderBase]: For 535/535 co-relation queries the response was YES. [2024-11-07 19:30:50,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 200 events. 111/200 cut-off events. For 535/535 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 615 event pairs, 15 based on Foata normal form. 4/204 useless extension candidates. Maximal degree in co-relation 856. Up to 72 conditions per place. [2024-11-07 19:30:50,634 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 38 selfloop transitions, 30 changer transitions 0/69 dead transitions. [2024-11-07 19:30:50,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 69 transitions, 626 flow [2024-11-07 19:30:50,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:30:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:30:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 87 transitions. [2024-11-07 19:30:50,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.435 [2024-11-07 19:30:50,638 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 378 flow. Second operand 10 states and 87 transitions. [2024-11-07 19:30:50,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 69 transitions, 626 flow [2024-11-07 19:30:50,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 572 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 19:30:50,640 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 437 flow [2024-11-07 19:30:50,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=437, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2024-11-07 19:30:50,641 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 42 predicate places. [2024-11-07 19:30:50,641 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 437 flow [2024-11-07 19:30:50,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 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) [2024-11-07 19:30:50,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:50,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:50,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-07 19:30:50,842 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,SelfDestructingSolverStorable12 [2024-11-07 19:30:50,842 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:50,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash -243034563, now seen corresponding path program 6 times [2024-11-07 19:30:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:50,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152587828] [2024-11-07 19:30:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:50,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:50,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:50,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152587828] [2024-11-07 19:30:50,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152587828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:30:50,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:30:50,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:30:50,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588388569] [2024-11-07 19:30:50,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:30:50,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:30:50,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:50,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:30:50,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:30:50,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:50,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 437 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:50,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:50,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:50,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:50,983 INFO L124 PetriNetUnfolderBase]: 104/184 cut-off events. [2024-11-07 19:30:50,983 INFO L125 PetriNetUnfolderBase]: For 551/551 co-relation queries the response was YES. [2024-11-07 19:30:50,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 184 events. 104/184 cut-off events. For 551/551 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 543 event pairs, 26 based on Foata normal form. 3/187 useless extension candidates. Maximal degree in co-relation 861. Up to 134 conditions per place. [2024-11-07 19:30:51,000 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 37 selfloop transitions, 17 changer transitions 3/58 dead transitions. [2024-11-07 19:30:51,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 563 flow [2024-11-07 19:30:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:30:51,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:30:51,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-11-07 19:30:51,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47 [2024-11-07 19:30:51,001 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 437 flow. Second operand 5 states and 47 transitions. [2024-11-07 19:30:51,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 563 flow [2024-11-07 19:30:51,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 473 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-11-07 19:30:51,003 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 362 flow [2024-11-07 19:30:51,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2024-11-07 19:30:51,004 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 39 predicate places. [2024-11-07 19:30:51,004 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 362 flow [2024-11-07 19:30:51,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-07 19:30:51,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:51,004 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:51,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 19:30:51,006 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:51,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:51,006 INFO L85 PathProgramCache]: Analyzing trace with hash -884107482, now seen corresponding path program 1 times [2024-11-07 19:30:51,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:51,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813964897] [2024-11-07 19:30:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:51,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:51,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:51,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813964897] [2024-11-07 19:30:51,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813964897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:51,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056292630] [2024-11-07 19:30:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:51,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:51,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:51,190 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) [2024-11-07 19:30:51,191 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 [2024-11-07 19:30:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:51,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:30:51,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:51,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:51,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056292630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:51,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:51,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-07 19:30:51,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515058285] [2024-11-07 19:30:51,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:51,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:51,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:51,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:51,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:51,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:51,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 362 flow. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 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) [2024-11-07 19:30:51,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:51,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:51,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:51,954 INFO L124 PetriNetUnfolderBase]: 152/279 cut-off events. [2024-11-07 19:30:51,958 INFO L125 PetriNetUnfolderBase]: For 757/757 co-relation queries the response was YES. [2024-11-07 19:30:51,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1264 conditions, 279 events. 152/279 cut-off events. For 757/757 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 980 event pairs, 13 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 1210. Up to 173 conditions per place. [2024-11-07 19:30:51,960 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 65 selfloop transitions, 19 changer transitions 4/89 dead transitions. [2024-11-07 19:30:51,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 89 transitions, 755 flow [2024-11-07 19:30:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 75 transitions. [2024-11-07 19:30:51,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-07 19:30:51,965 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 362 flow. Second operand 7 states and 75 transitions. [2024-11-07 19:30:51,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 89 transitions, 755 flow [2024-11-07 19:30:51,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 89 transitions, 705 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:51,968 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 494 flow [2024-11-07 19:30:51,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=494, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-07 19:30:51,972 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 43 predicate places. [2024-11-07 19:30:51,972 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 494 flow [2024-11-07 19:30:51,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 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) [2024-11-07 19:30:51,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:51,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:51,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 19:30:52,172 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,SelfDestructingSolverStorable14 [2024-11-07 19:30:52,173 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:52,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:52,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1058757058, now seen corresponding path program 2 times [2024-11-07 19:30:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:52,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794657253] [2024-11-07 19:30:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:52,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:52,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794657253] [2024-11-07 19:30:52,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794657253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:52,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063901373] [2024-11-07 19:30:52,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:30:52,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:52,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:52,380 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) [2024-11-07 19:30:52,382 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 [2024-11-07 19:30:52,433 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:30:52,433 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:52,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:30:52,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:52,515 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:52,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063901373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:52,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:52,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-07 19:30:52,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684119474] [2024-11-07 19:30:52,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:52,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:52,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:52,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:52,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:52,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:52,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 494 flow. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 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) [2024-11-07 19:30:52,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:52,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:52,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:52,762 INFO L124 PetriNetUnfolderBase]: 150/271 cut-off events. [2024-11-07 19:30:52,762 INFO L125 PetriNetUnfolderBase]: For 885/885 co-relation queries the response was YES. [2024-11-07 19:30:52,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 271 events. 150/271 cut-off events. For 885/885 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 935 event pairs, 13 based on Foata normal form. 1/272 useless extension candidates. Maximal degree in co-relation 1318. Up to 193 conditions per place. [2024-11-07 19:30:52,764 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 61 selfloop transitions, 20 changer transitions 4/86 dead transitions. [2024-11-07 19:30:52,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 86 transitions, 782 flow [2024-11-07 19:30:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 70 transitions. [2024-11-07 19:30:52,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:30:52,765 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 494 flow. Second operand 7 states and 70 transitions. [2024-11-07 19:30:52,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 86 transitions, 782 flow [2024-11-07 19:30:52,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 86 transitions, 734 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:52,782 INFO L231 Difference]: Finished difference. Result has 70 places, 68 transitions, 564 flow [2024-11-07 19:30:52,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=564, PETRI_PLACES=70, PETRI_TRANSITIONS=68} [2024-11-07 19:30:52,786 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 48 predicate places. [2024-11-07 19:30:52,786 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 68 transitions, 564 flow [2024-11-07 19:30:52,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 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) [2024-11-07 19:30:52,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:52,786 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:52,809 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 [2024-11-07 19:30:52,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:52,987 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:52,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash -268386566, now seen corresponding path program 3 times [2024-11-07 19:30:52,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:52,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862780480] [2024-11-07 19:30:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:52,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:53,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:53,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:53,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862780480] [2024-11-07 19:30:53,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862780480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:53,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564180615] [2024-11-07 19:30:53,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:30:53,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:53,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:53,119 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) [2024-11-07 19:30:53,120 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 [2024-11-07 19:30:53,168 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:30:53,169 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:53,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:30:53,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:53,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:53,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564180615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:53,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:53,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-07 19:30:53,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5819861] [2024-11-07 19:30:53,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:53,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:30:53,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:53,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:30:53,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:30:53,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:53,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 68 transitions, 564 flow. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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) [2024-11-07 19:30:53,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:53,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:53,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:53,615 INFO L124 PetriNetUnfolderBase]: 148/263 cut-off events. [2024-11-07 19:30:53,615 INFO L125 PetriNetUnfolderBase]: For 901/901 co-relation queries the response was YES. [2024-11-07 19:30:53,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1344 conditions, 263 events. 148/263 cut-off events. For 901/901 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 891 event pairs, 13 based on Foata normal form. 1/264 useless extension candidates. Maximal degree in co-relation 1316. Up to 173 conditions per place. [2024-11-07 19:30:53,617 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 60 selfloop transitions, 21 changer transitions 4/86 dead transitions. [2024-11-07 19:30:53,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 816 flow [2024-11-07 19:30:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:53,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 70 transitions. [2024-11-07 19:30:53,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:30:53,618 INFO L175 Difference]: Start difference. First operand has 70 places, 68 transitions, 564 flow. Second operand 7 states and 70 transitions. [2024-11-07 19:30:53,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 816 flow [2024-11-07 19:30:53,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 86 transitions, 774 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-07 19:30:53,623 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 604 flow [2024-11-07 19:30:53,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=604, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2024-11-07 19:30:53,623 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 52 predicate places. [2024-11-07 19:30:53,623 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 604 flow [2024-11-07 19:30:53,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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) [2024-11-07 19:30:53,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:53,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:53,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 19:30:53,824 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,SelfDestructingSolverStorable16 [2024-11-07 19:30:53,824 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:53,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash 465017658, now seen corresponding path program 4 times [2024-11-07 19:30:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765473313] [2024-11-07 19:30:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:53,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:53,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:53,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765473313] [2024-11-07 19:30:53,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765473313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:53,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720305991] [2024-11-07 19:30:53,933 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:30:53,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:53,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:53,935 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) [2024-11-07 19:30:53,936 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 [2024-11-07 19:30:53,983 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:30:53,984 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:53,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:30:53,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:54,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:54,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720305991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:54,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:54,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-07 19:30:54,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199402769] [2024-11-07 19:30:54,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:54,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:54,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:54,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 604 flow. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-11-07 19:30:54,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:54,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:54,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:54,299 INFO L124 PetriNetUnfolderBase]: 173/306 cut-off events. [2024-11-07 19:30:54,300 INFO L125 PetriNetUnfolderBase]: For 1112/1112 co-relation queries the response was YES. [2024-11-07 19:30:54,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1575 conditions, 306 events. 173/306 cut-off events. For 1112/1112 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1098 event pairs, 12 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 1545. Up to 247 conditions per place. [2024-11-07 19:30:54,302 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 70 selfloop transitions, 19 changer transitions 4/94 dead transitions. [2024-11-07 19:30:54,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 94 transitions, 925 flow [2024-11-07 19:30:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 64 transitions. [2024-11-07 19:30:54,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2024-11-07 19:30:54,303 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 604 flow. Second operand 7 states and 64 transitions. [2024-11-07 19:30:54,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 94 transitions, 925 flow [2024-11-07 19:30:54,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 94 transitions, 868 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-11-07 19:30:54,307 INFO L231 Difference]: Finished difference. Result has 79 places, 82 transitions, 719 flow [2024-11-07 19:30:54,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=719, PETRI_PLACES=79, PETRI_TRANSITIONS=82} [2024-11-07 19:30:54,308 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 57 predicate places. [2024-11-07 19:30:54,308 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 82 transitions, 719 flow [2024-11-07 19:30:54,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-11-07 19:30:54,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:54,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:54,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-07 19:30:54,508 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,SelfDestructingSolverStorable17 [2024-11-07 19:30:54,509 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:54,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1335848292, now seen corresponding path program 5 times [2024-11-07 19:30:54,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:54,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863951843] [2024-11-07 19:30:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:54,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:54,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:54,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863951843] [2024-11-07 19:30:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863951843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:54,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367755608] [2024-11-07 19:30:54,610 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:30:54,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:54,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:54,612 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) [2024-11-07 19:30:54,613 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 [2024-11-07 19:30:54,657 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:30:54,657 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:54,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:30:54,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:54,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:54,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367755608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:54,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:54,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-07 19:30:54,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908715248] [2024-11-07 19:30:54,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:54,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:54,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:54,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:54,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:54,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 82 transitions, 719 flow. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-11-07 19:30:54,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:54,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:54,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:54,942 INFO L124 PetriNetUnfolderBase]: 185/331 cut-off events. [2024-11-07 19:30:54,942 INFO L125 PetriNetUnfolderBase]: For 1341/1341 co-relation queries the response was YES. [2024-11-07 19:30:54,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 331 events. 185/331 cut-off events. For 1341/1341 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1231 event pairs, 12 based on Foata normal form. 1/332 useless extension candidates. Maximal degree in co-relation 1746. Up to 250 conditions per place. [2024-11-07 19:30:54,945 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 77 selfloop transitions, 20 changer transitions 4/102 dead transitions. [2024-11-07 19:30:54,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 102 transitions, 1055 flow [2024-11-07 19:30:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 69 transitions. [2024-11-07 19:30:54,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4928571428571429 [2024-11-07 19:30:54,946 INFO L175 Difference]: Start difference. First operand has 79 places, 82 transitions, 719 flow. Second operand 7 states and 69 transitions. [2024-11-07 19:30:54,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 102 transitions, 1055 flow [2024-11-07 19:30:54,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 102 transitions, 1006 flow, removed 21 selfloop flow, removed 2 redundant places. [2024-11-07 19:30:54,952 INFO L231 Difference]: Finished difference. Result has 85 places, 86 transitions, 790 flow [2024-11-07 19:30:54,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=790, PETRI_PLACES=85, PETRI_TRANSITIONS=86} [2024-11-07 19:30:54,953 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 63 predicate places. [2024-11-07 19:30:54,953 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 86 transitions, 790 flow [2024-11-07 19:30:54,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-11-07 19:30:54,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:54,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:54,965 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 [2024-11-07 19:30:55,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:55,154 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:55,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1252731402, now seen corresponding path program 6 times [2024-11-07 19:30:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498635336] [2024-11-07 19:30:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:55,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:55,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:55,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:55,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498635336] [2024-11-07 19:30:55,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498635336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:55,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976859221] [2024-11-07 19:30:55,271 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:30:55,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:55,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:55,277 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) [2024-11-07 19:30:55,279 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 [2024-11-07 19:30:55,329 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:30:55,329 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:55,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:30:55,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:55,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:55,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976859221] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:55,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:55,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-07 19:30:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706812664] [2024-11-07 19:30:55,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:55,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:55,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:55,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 86 transitions, 790 flow. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-11-07 19:30:55,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:55,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:55,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:55,705 INFO L124 PetriNetUnfolderBase]: 183/323 cut-off events. [2024-11-07 19:30:55,706 INFO L125 PetriNetUnfolderBase]: For 1616/1616 co-relation queries the response was YES. [2024-11-07 19:30:55,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 323 events. 183/323 cut-off events. For 1616/1616 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1183 event pairs, 12 based on Foata normal form. 1/324 useless extension candidates. Maximal degree in co-relation 1751. Up to 250 conditions per place. [2024-11-07 19:30:55,708 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 75 selfloop transitions, 21 changer transitions 4/101 dead transitions. [2024-11-07 19:30:55,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 101 transitions, 1078 flow [2024-11-07 19:30:55,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:55,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:55,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 67 transitions. [2024-11-07 19:30:55,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4785714285714286 [2024-11-07 19:30:55,709 INFO L175 Difference]: Start difference. First operand has 85 places, 86 transitions, 790 flow. Second operand 7 states and 67 transitions. [2024-11-07 19:30:55,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 101 transitions, 1078 flow [2024-11-07 19:30:55,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 101 transitions, 1006 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:55,716 INFO L231 Difference]: Finished difference. Result has 90 places, 88 transitions, 816 flow [2024-11-07 19:30:55,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=816, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2024-11-07 19:30:55,716 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 68 predicate places. [2024-11-07 19:30:55,716 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 816 flow [2024-11-07 19:30:55,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2024-11-07 19:30:55,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:55,717 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:55,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 19:30:55,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:55,917 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:55,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:55,918 INFO L85 PathProgramCache]: Analyzing trace with hash -526255113, now seen corresponding path program 7 times [2024-11-07 19:30:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159401856] [2024-11-07 19:30:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:55,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159401856] [2024-11-07 19:30:55,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159401856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132628687] [2024-11-07 19:30:55,976 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:30:55,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:55,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:55,978 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) [2024-11-07 19:30:55,987 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 [2024-11-07 19:30:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:56,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:30:56,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:56,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:56,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132628687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:56,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:56,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-07 19:30:56,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208978685] [2024-11-07 19:30:56,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:56,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:30:56,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:30:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:30:56,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:56,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 816 flow. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2024-11-07 19:30:56,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:56,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:56,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:56,244 INFO L124 PetriNetUnfolderBase]: 210/369 cut-off events. [2024-11-07 19:30:56,245 INFO L125 PetriNetUnfolderBase]: For 2177/2177 co-relation queries the response was YES. [2024-11-07 19:30:56,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 369 events. 210/369 cut-off events. For 2177/2177 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1414 event pairs, 20 based on Foata normal form. 5/374 useless extension candidates. Maximal degree in co-relation 2036. Up to 101 conditions per place. [2024-11-07 19:30:56,247 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 80 selfloop transitions, 50 changer transitions 0/131 dead transitions. [2024-11-07 19:30:56,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 131 transitions, 1433 flow [2024-11-07 19:30:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:30:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:30:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 100 transitions. [2024-11-07 19:30:56,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:30:56,248 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 816 flow. Second operand 10 states and 100 transitions. [2024-11-07 19:30:56,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 131 transitions, 1433 flow [2024-11-07 19:30:56,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 131 transitions, 1366 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-07 19:30:56,255 INFO L231 Difference]: Finished difference. Result has 101 places, 98 transitions, 1065 flow [2024-11-07 19:30:56,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1065, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2024-11-07 19:30:56,256 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 79 predicate places. [2024-11-07 19:30:56,256 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 1065 flow [2024-11-07 19:30:56,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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) [2024-11-07 19:30:56,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:56,256 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:56,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 19:30:56,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:56,461 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:56,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:56,461 INFO L85 PathProgramCache]: Analyzing trace with hash 37067966, now seen corresponding path program 8 times [2024-11-07 19:30:56,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:56,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806078346] [2024-11-07 19:30:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:56,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:56,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:56,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806078346] [2024-11-07 19:30:56,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806078346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:56,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729802543] [2024-11-07 19:30:56,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:30:56,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:56,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:56,546 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) [2024-11-07 19:30:56,547 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 [2024-11-07 19:30:56,628 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:30:56,629 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:56,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:30:56,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:56,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:56,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:56,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729802543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:56,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:56,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-07 19:30:56,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101541811] [2024-11-07 19:30:56,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:56,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:30:56,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:56,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:30:56,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:30:56,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:56,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 98 transitions, 1065 flow. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2024-11-07 19:30:56,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:56,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:56,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:56,895 INFO L124 PetriNetUnfolderBase]: 211/376 cut-off events. [2024-11-07 19:30:56,899 INFO L125 PetriNetUnfolderBase]: For 3117/3117 co-relation queries the response was YES. [2024-11-07 19:30:56,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2353 conditions, 376 events. 211/376 cut-off events. For 3117/3117 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1487 event pairs, 33 based on Foata normal form. 3/379 useless extension candidates. Maximal degree in co-relation 2270. Up to 165 conditions per place. [2024-11-07 19:30:56,902 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 79 selfloop transitions, 34 changer transitions 9/123 dead transitions. [2024-11-07 19:30:56,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 123 transitions, 1508 flow [2024-11-07 19:30:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:30:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:30:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 72 transitions. [2024-11-07 19:30:56,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2024-11-07 19:30:56,902 INFO L175 Difference]: Start difference. First operand has 101 places, 98 transitions, 1065 flow. Second operand 7 states and 72 transitions. [2024-11-07 19:30:56,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 123 transitions, 1508 flow [2024-11-07 19:30:56,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 123 transitions, 1421 flow, removed 28 selfloop flow, removed 2 redundant places. [2024-11-07 19:30:56,922 INFO L231 Difference]: Finished difference. Result has 107 places, 96 transitions, 1027 flow [2024-11-07 19:30:56,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1027, PETRI_PLACES=107, PETRI_TRANSITIONS=96} [2024-11-07 19:30:56,923 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 85 predicate places. [2024-11-07 19:30:56,924 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 96 transitions, 1027 flow [2024-11-07 19:30:56,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2024-11-07 19:30:56,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:56,924 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:56,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-07 19:30:57,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:57,128 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:57,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash 99726495, now seen corresponding path program 9 times [2024-11-07 19:30:57,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:57,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226504119] [2024-11-07 19:30:57,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:57,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:57,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:57,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226504119] [2024-11-07 19:30:57,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226504119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:57,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090229995] [2024-11-07 19:30:57,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:30:57,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:57,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:57,218 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) [2024-11-07 19:30:57,223 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 [2024-11-07 19:30:57,274 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:30:57,274 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:57,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:30:57,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:57,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:57,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090229995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:57,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:57,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-07 19:30:57,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567613360] [2024-11-07 19:30:57,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:57,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:30:57,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:57,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:30:57,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:30:57,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:57,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 96 transitions, 1027 flow. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 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) [2024-11-07 19:30:57,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:57,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:57,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:57,698 INFO L124 PetriNetUnfolderBase]: 249/432 cut-off events. [2024-11-07 19:30:57,698 INFO L125 PetriNetUnfolderBase]: For 4351/4351 co-relation queries the response was YES. [2024-11-07 19:30:57,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 432 events. 249/432 cut-off events. For 4351/4351 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1663 event pairs, 28 based on Foata normal form. 17/449 useless extension candidates. Maximal degree in co-relation 2641. Up to 143 conditions per place. [2024-11-07 19:30:57,722 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 81 selfloop transitions, 64 changer transitions 0/146 dead transitions. [2024-11-07 19:30:57,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 146 transitions, 1797 flow [2024-11-07 19:30:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:30:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:30:57,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 126 transitions. [2024-11-07 19:30:57,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-07 19:30:57,723 INFO L175 Difference]: Start difference. First operand has 107 places, 96 transitions, 1027 flow. Second operand 14 states and 126 transitions. [2024-11-07 19:30:57,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 146 transitions, 1797 flow [2024-11-07 19:30:57,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 146 transitions, 1719 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-07 19:30:57,732 INFO L231 Difference]: Finished difference. Result has 119 places, 119 transitions, 1483 flow [2024-11-07 19:30:57,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1483, PETRI_PLACES=119, PETRI_TRANSITIONS=119} [2024-11-07 19:30:57,733 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 97 predicate places. [2024-11-07 19:30:57,733 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 119 transitions, 1483 flow [2024-11-07 19:30:57,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 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) [2024-11-07 19:30:57,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:57,733 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:57,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-07 19:30:57,934 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,SelfDestructingSolverStorable22 [2024-11-07 19:30:57,934 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:57,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:57,934 INFO L85 PathProgramCache]: Analyzing trace with hash 555431037, now seen corresponding path program 10 times [2024-11-07 19:30:57,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:57,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474548335] [2024-11-07 19:30:57,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:57,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:57,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:57,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474548335] [2024-11-07 19:30:57,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474548335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:57,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620265979] [2024-11-07 19:30:57,997 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:30:57,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:57,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:58,002 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) [2024-11-07 19:30:58,009 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 [2024-11-07 19:30:58,061 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:30:58,061 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:58,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:30:58,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:58,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:58,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:58,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620265979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:58,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:58,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:30:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559329900] [2024-11-07 19:30:58,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:58,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:58,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:58,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:58,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 119 transitions, 1483 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-11-07 19:30:58,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:58,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:58,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:58,425 INFO L124 PetriNetUnfolderBase]: 300/515 cut-off events. [2024-11-07 19:30:58,425 INFO L125 PetriNetUnfolderBase]: For 8634/8634 co-relation queries the response was YES. [2024-11-07 19:30:58,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3709 conditions, 515 events. 300/515 cut-off events. For 8634/8634 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2050 event pairs, 27 based on Foata normal form. 12/527 useless extension candidates. Maximal degree in co-relation 3616. Up to 177 conditions per place. [2024-11-07 19:30:58,429 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 79 selfloop transitions, 94 changer transitions 0/174 dead transitions. [2024-11-07 19:30:58,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 174 transitions, 2495 flow [2024-11-07 19:30:58,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:30:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:30:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 143 transitions. [2024-11-07 19:30:58,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.446875 [2024-11-07 19:30:58,430 INFO L175 Difference]: Start difference. First operand has 119 places, 119 transitions, 1483 flow. Second operand 16 states and 143 transitions. [2024-11-07 19:30:58,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 174 transitions, 2495 flow [2024-11-07 19:30:58,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 174 transitions, 2211 flow, removed 133 selfloop flow, removed 3 redundant places. [2024-11-07 19:30:58,445 INFO L231 Difference]: Finished difference. Result has 139 places, 146 transitions, 1984 flow [2024-11-07 19:30:58,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1271, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1984, PETRI_PLACES=139, PETRI_TRANSITIONS=146} [2024-11-07 19:30:58,446 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 117 predicate places. [2024-11-07 19:30:58,446 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 146 transitions, 1984 flow [2024-11-07 19:30:58,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-11-07 19:30:58,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:58,446 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:58,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-07 19:30:58,647 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,SelfDestructingSolverStorable23 [2024-11-07 19:30:58,647 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:58,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 963285089, now seen corresponding path program 11 times [2024-11-07 19:30:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:58,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159537341] [2024-11-07 19:30:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:58,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159537341] [2024-11-07 19:30:58,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159537341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71586794] [2024-11-07 19:30:58,693 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:30:58,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:58,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:58,698 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) [2024-11-07 19:30:58,699 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 [2024-11-07 19:30:58,750 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:30:58,751 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:58,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:30:58,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:58,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:58,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71586794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:58,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:58,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:30:58,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901784230] [2024-11-07 19:30:58,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:58,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:58,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:58,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:58,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:58,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:58,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 146 transitions, 1984 flow. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:30:58,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:58,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:58,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:59,001 INFO L124 PetriNetUnfolderBase]: 300/519 cut-off events. [2024-11-07 19:30:59,002 INFO L125 PetriNetUnfolderBase]: For 8615/8615 co-relation queries the response was YES. [2024-11-07 19:30:59,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 519 events. 300/519 cut-off events. For 8615/8615 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2117 event pairs, 42 based on Foata normal form. 4/523 useless extension candidates. Maximal degree in co-relation 3826. Up to 233 conditions per place. [2024-11-07 19:30:59,006 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 88 selfloop transitions, 79 changer transitions 2/170 dead transitions. [2024-11-07 19:30:59,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 170 transitions, 2569 flow [2024-11-07 19:30:59,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:30:59,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:30:59,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 113 transitions. [2024-11-07 19:30:59,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4346153846153846 [2024-11-07 19:30:59,008 INFO L175 Difference]: Start difference. First operand has 139 places, 146 transitions, 1984 flow. Second operand 13 states and 113 transitions. [2024-11-07 19:30:59,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 170 transitions, 2569 flow [2024-11-07 19:30:59,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 170 transitions, 2251 flow, removed 115 selfloop flow, removed 6 redundant places. [2024-11-07 19:30:59,027 INFO L231 Difference]: Finished difference. Result has 147 places, 146 transitions, 1836 flow [2024-11-07 19:30:59,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1667, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1836, PETRI_PLACES=147, PETRI_TRANSITIONS=146} [2024-11-07 19:30:59,028 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 125 predicate places. [2024-11-07 19:30:59,028 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 146 transitions, 1836 flow [2024-11-07 19:30:59,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:30:59,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:59,029 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:59,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-07 19:30:59,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:59,233 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:30:59,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:30:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1488894746, now seen corresponding path program 12 times [2024-11-07 19:30:59,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:30:59,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890466574] [2024-11-07 19:30:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:30:59,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:30:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:30:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:59,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:30:59,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890466574] [2024-11-07 19:30:59,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890466574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:30:59,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241686005] [2024-11-07 19:30:59,278 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:30:59,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:30:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:30:59,283 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) [2024-11-07 19:30:59,287 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 [2024-11-07 19:30:59,339 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:30:59,339 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:30:59,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:30:59,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:30:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:59,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:30:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:30:59,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241686005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:30:59,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:30:59,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:30:59,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066703878] [2024-11-07 19:30:59,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:30:59,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:30:59,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:30:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:30:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:30:59,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:30:59,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 146 transitions, 1836 flow. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:30:59,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:30:59,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:30:59,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:30:59,788 INFO L124 PetriNetUnfolderBase]: 349/586 cut-off events. [2024-11-07 19:30:59,788 INFO L125 PetriNetUnfolderBase]: For 11161/11161 co-relation queries the response was YES. [2024-11-07 19:30:59,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4519 conditions, 586 events. 349/586 cut-off events. For 11161/11161 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2349 event pairs, 69 based on Foata normal form. 8/594 useless extension candidates. Maximal degree in co-relation 4446. Up to 402 conditions per place. [2024-11-07 19:30:59,794 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 127 selfloop transitions, 73 changer transitions 0/201 dead transitions. [2024-11-07 19:30:59,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 201 transitions, 3033 flow [2024-11-07 19:30:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:30:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:30:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 147 transitions. [2024-11-07 19:30:59,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4323529411764706 [2024-11-07 19:30:59,796 INFO L175 Difference]: Start difference. First operand has 147 places, 146 transitions, 1836 flow. Second operand 17 states and 147 transitions. [2024-11-07 19:30:59,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 201 transitions, 3033 flow [2024-11-07 19:30:59,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 201 transitions, 2820 flow, removed 30 selfloop flow, removed 12 redundant places. [2024-11-07 19:30:59,818 INFO L231 Difference]: Finished difference. Result has 154 places, 177 transitions, 2505 flow [2024-11-07 19:30:59,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1685, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2505, PETRI_PLACES=154, PETRI_TRANSITIONS=177} [2024-11-07 19:30:59,819 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 132 predicate places. [2024-11-07 19:30:59,819 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 177 transitions, 2505 flow [2024-11-07 19:30:59,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:30:59,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:30:59,820 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:30:59,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:00,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:00,024 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:00,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:00,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2129379204, now seen corresponding path program 13 times [2024-11-07 19:31:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:00,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410902681] [2024-11-07 19:31:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:00,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:00,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410902681] [2024-11-07 19:31:00,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410902681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:00,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838260549] [2024-11-07 19:31:00,073 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:00,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:00,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:00,074 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) [2024-11-07 19:31:00,075 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 [2024-11-07 19:31:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:00,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:00,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:00,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:00,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838260549] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:00,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:00,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-07 19:31:00,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572572084] [2024-11-07 19:31:00,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:00,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:00,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:00,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:00,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:00,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:00,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 177 transitions, 2505 flow. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 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) [2024-11-07 19:31:00,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:00,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:00,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:00,477 INFO L124 PetriNetUnfolderBase]: 354/603 cut-off events. [2024-11-07 19:31:00,478 INFO L125 PetriNetUnfolderBase]: For 10676/10676 co-relation queries the response was YES. [2024-11-07 19:31:00,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4667 conditions, 603 events. 354/603 cut-off events. For 10676/10676 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2499 event pairs, 71 based on Foata normal form. 6/609 useless extension candidates. Maximal degree in co-relation 4553. Up to 420 conditions per place. [2024-11-07 19:31:00,483 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 141 selfloop transitions, 52 changer transitions 6/200 dead transitions. [2024-11-07 19:31:00,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 200 transitions, 3078 flow [2024-11-07 19:31:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 99 transitions. [2024-11-07 19:31:00,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-07 19:31:00,486 INFO L175 Difference]: Start difference. First operand has 154 places, 177 transitions, 2505 flow. Second operand 11 states and 99 transitions. [2024-11-07 19:31:00,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 200 transitions, 3078 flow [2024-11-07 19:31:00,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 200 transitions, 2583 flow, removed 189 selfloop flow, removed 7 redundant places. [2024-11-07 19:31:00,512 INFO L231 Difference]: Finished difference. Result has 159 places, 176 transitions, 2125 flow [2024-11-07 19:31:00,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=2011, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2125, PETRI_PLACES=159, PETRI_TRANSITIONS=176} [2024-11-07 19:31:00,512 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 137 predicate places. [2024-11-07 19:31:00,512 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 176 transitions, 2125 flow [2024-11-07 19:31:00,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 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) [2024-11-07 19:31:00,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:00,513 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:00,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:00,713 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,SelfDestructingSolverStorable26 [2024-11-07 19:31:00,713 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:00,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1516747420, now seen corresponding path program 14 times [2024-11-07 19:31:00,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:00,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406834088] [2024-11-07 19:31:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:00,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:00,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406834088] [2024-11-07 19:31:00,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406834088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647623439] [2024-11-07 19:31:00,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:00,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:00,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:00,775 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) [2024-11-07 19:31:00,777 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 [2024-11-07 19:31:00,825 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:00,825 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:00,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:00,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:00,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:00,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647623439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:00,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:00,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:31:00,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625128603] [2024-11-07 19:31:00,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:00,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:31:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:31:00,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:31:00,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:00,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 176 transitions, 2125 flow. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:31:00,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:00,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:00,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:01,093 INFO L124 PetriNetUnfolderBase]: 341/581 cut-off events. [2024-11-07 19:31:01,094 INFO L125 PetriNetUnfolderBase]: For 8499/8499 co-relation queries the response was YES. [2024-11-07 19:31:01,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 581 events. 341/581 cut-off events. For 8499/8499 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2356 event pairs, 65 based on Foata normal form. 9/590 useless extension candidates. Maximal degree in co-relation 3991. Up to 386 conditions per place. [2024-11-07 19:31:01,121 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 126 selfloop transitions, 64 changer transitions 4/195 dead transitions. [2024-11-07 19:31:01,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 195 transitions, 2639 flow [2024-11-07 19:31:01,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:31:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:31:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 109 transitions. [2024-11-07 19:31:01,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45416666666666666 [2024-11-07 19:31:01,126 INFO L175 Difference]: Start difference. First operand has 159 places, 176 transitions, 2125 flow. Second operand 12 states and 109 transitions. [2024-11-07 19:31:01,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 195 transitions, 2639 flow [2024-11-07 19:31:01,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 195 transitions, 2530 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-11-07 19:31:01,147 INFO L231 Difference]: Finished difference. Result has 161 places, 172 transitions, 2094 flow [2024-11-07 19:31:01,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1951, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2094, PETRI_PLACES=161, PETRI_TRANSITIONS=172} [2024-11-07 19:31:01,152 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 139 predicate places. [2024-11-07 19:31:01,152 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 172 transitions, 2094 flow [2024-11-07 19:31:01,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:31:01,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:01,152 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:01,165 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 [2024-11-07 19:31:01,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:01,353 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:01,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1057640249, now seen corresponding path program 15 times [2024-11-07 19:31:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:01,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142522145] [2024-11-07 19:31:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:01,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:01,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:01,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142522145] [2024-11-07 19:31:01,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142522145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:01,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18013872] [2024-11-07 19:31:01,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:01,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:01,412 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) [2024-11-07 19:31:01,420 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 [2024-11-07 19:31:01,466 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:31:01,466 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:01,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:01,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:01,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:01,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18013872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:01,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:01,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:31:01,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831599169] [2024-11-07 19:31:01,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:01,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:01,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:01,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:01,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:01,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:01,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 172 transitions, 2094 flow. Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 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) [2024-11-07 19:31:01,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:01,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:01,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:01,751 INFO L124 PetriNetUnfolderBase]: 390/650 cut-off events. [2024-11-07 19:31:01,751 INFO L125 PetriNetUnfolderBase]: For 11227/11227 co-relation queries the response was YES. [2024-11-07 19:31:01,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4800 conditions, 650 events. 390/650 cut-off events. For 11227/11227 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2697 event pairs, 41 based on Foata normal form. 8/658 useless extension candidates. Maximal degree in co-relation 4709. Up to 250 conditions per place. [2024-11-07 19:31:01,760 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 103 selfloop transitions, 115 changer transitions 5/224 dead transitions. [2024-11-07 19:31:01,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 224 transitions, 3240 flow [2024-11-07 19:31:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:31:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:31:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 134 transitions. [2024-11-07 19:31:01,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41875 [2024-11-07 19:31:01,762 INFO L175 Difference]: Start difference. First operand has 161 places, 172 transitions, 2094 flow. Second operand 16 states and 134 transitions. [2024-11-07 19:31:01,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 224 transitions, 3240 flow [2024-11-07 19:31:01,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 224 transitions, 3030 flow, removed 29 selfloop flow, removed 11 redundant places. [2024-11-07 19:31:01,789 INFO L231 Difference]: Finished difference. Result has 168 places, 197 transitions, 2739 flow [2024-11-07 19:31:01,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2739, PETRI_PLACES=168, PETRI_TRANSITIONS=197} [2024-11-07 19:31:01,790 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 146 predicate places. [2024-11-07 19:31:01,790 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 197 transitions, 2739 flow [2024-11-07 19:31:01,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 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) [2024-11-07 19:31:01,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:01,792 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:01,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-07 19:31:01,992 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,SelfDestructingSolverStorable28 [2024-11-07 19:31:01,993 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:01,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:01,993 INFO L85 PathProgramCache]: Analyzing trace with hash -507151239, now seen corresponding path program 16 times [2024-11-07 19:31:01,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:01,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540138654] [2024-11-07 19:31:01,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:01,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:02,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540138654] [2024-11-07 19:31:02,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540138654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:02,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56464538] [2024-11-07 19:31:02,037 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:02,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:02,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:02,039 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) [2024-11-07 19:31:02,041 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 [2024-11-07 19:31:02,091 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:02,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:02,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:02,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:02,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56464538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:02,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:02,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-07 19:31:02,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554820973] [2024-11-07 19:31:02,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:02,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:02,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:02,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:02,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:02,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:02,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 197 transitions, 2739 flow. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 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) [2024-11-07 19:31:02,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:02,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:02,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:02,455 INFO L124 PetriNetUnfolderBase]: 488/802 cut-off events. [2024-11-07 19:31:02,455 INFO L125 PetriNetUnfolderBase]: For 17665/17665 co-relation queries the response was YES. [2024-11-07 19:31:02,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6333 conditions, 802 events. 488/802 cut-off events. For 17665/17665 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3385 event pairs, 34 based on Foata normal form. 14/816 useless extension candidates. Maximal degree in co-relation 6251. Up to 254 conditions per place. [2024-11-07 19:31:02,461 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 102 selfloop transitions, 171 changer transitions 0/274 dead transitions. [2024-11-07 19:31:02,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 274 transitions, 4296 flow [2024-11-07 19:31:02,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:31:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:31:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 149 transitions. [2024-11-07 19:31:02,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43823529411764706 [2024-11-07 19:31:02,465 INFO L175 Difference]: Start difference. First operand has 168 places, 197 transitions, 2739 flow. Second operand 17 states and 149 transitions. [2024-11-07 19:31:02,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 274 transitions, 4296 flow [2024-11-07 19:31:02,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 274 transitions, 3887 flow, removed 157 selfloop flow, removed 8 redundant places. [2024-11-07 19:31:02,505 INFO L231 Difference]: Finished difference. Result has 178 places, 248 transitions, 3741 flow [2024-11-07 19:31:02,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=2337, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3741, PETRI_PLACES=178, PETRI_TRANSITIONS=248} [2024-11-07 19:31:02,505 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 156 predicate places. [2024-11-07 19:31:02,506 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 248 transitions, 3741 flow [2024-11-07 19:31:02,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 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) [2024-11-07 19:31:02,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:02,506 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:02,518 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 [2024-11-07 19:31:02,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:02,707 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:02,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1889593665, now seen corresponding path program 17 times [2024-11-07 19:31:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:02,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856182166] [2024-11-07 19:31:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:02,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:02,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856182166] [2024-11-07 19:31:02,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856182166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541738050] [2024-11-07 19:31:02,757 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:02,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:02,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:02,759 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) [2024-11-07 19:31:02,760 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 [2024-11-07 19:31:02,810 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:02,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:02,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:02,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:02,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:02,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:02,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541738050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:02,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:02,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:31:02,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141728248] [2024-11-07 19:31:02,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:02,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:02,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:02,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:02,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:02,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:02,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 248 transitions, 3741 flow. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:31:02,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:02,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:02,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:03,269 INFO L124 PetriNetUnfolderBase]: 585/967 cut-off events. [2024-11-07 19:31:03,270 INFO L125 PetriNetUnfolderBase]: For 17412/17412 co-relation queries the response was YES. [2024-11-07 19:31:03,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8019 conditions, 967 events. 585/967 cut-off events. For 17412/17412 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4329 event pairs, 37 based on Foata normal form. 8/975 useless extension candidates. Maximal degree in co-relation 7893. Up to 323 conditions per place. [2024-11-07 19:31:03,279 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 164 selfloop transitions, 169 changer transitions 0/334 dead transitions. [2024-11-07 19:31:03,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 334 transitions, 5456 flow [2024-11-07 19:31:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 19:31:03,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 19:31:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 191 transitions. [2024-11-07 19:31:03,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4152173913043478 [2024-11-07 19:31:03,282 INFO L175 Difference]: Start difference. First operand has 178 places, 248 transitions, 3741 flow. Second operand 23 states and 191 transitions. [2024-11-07 19:31:03,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 334 transitions, 5456 flow [2024-11-07 19:31:03,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 334 transitions, 5065 flow, removed 179 selfloop flow, removed 4 redundant places. [2024-11-07 19:31:03,338 INFO L231 Difference]: Finished difference. Result has 204 places, 298 transitions, 4699 flow [2024-11-07 19:31:03,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=3398, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4699, PETRI_PLACES=204, PETRI_TRANSITIONS=298} [2024-11-07 19:31:03,339 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 182 predicate places. [2024-11-07 19:31:03,339 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 298 transitions, 4699 flow [2024-11-07 19:31:03,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:31:03,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:03,340 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:03,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:03,540 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,SelfDestructingSolverStorable30 [2024-11-07 19:31:03,540 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:03,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1345896383, now seen corresponding path program 18 times [2024-11-07 19:31:03,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:03,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490778953] [2024-11-07 19:31:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:03,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:03,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:03,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490778953] [2024-11-07 19:31:03,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490778953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:03,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130616075] [2024-11-07 19:31:03,599 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:03,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:03,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:03,603 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) [2024-11-07 19:31:03,607 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 [2024-11-07 19:31:03,653 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:31:03,654 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:03,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:03,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:03,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:03,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130616075] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:03,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:03,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:31:03,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318030086] [2024-11-07 19:31:03,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:03,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:03,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:03,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:03,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:03,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:03,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 298 transitions, 4699 flow. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-07 19:31:03,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:03,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:03,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:04,021 INFO L124 PetriNetUnfolderBase]: 630/1038 cut-off events. [2024-11-07 19:31:04,021 INFO L125 PetriNetUnfolderBase]: For 23284/23284 co-relation queries the response was YES. [2024-11-07 19:31:04,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9112 conditions, 1038 events. 630/1038 cut-off events. For 23284/23284 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4718 event pairs, 144 based on Foata normal form. 24/1062 useless extension candidates. Maximal degree in co-relation 8973. Up to 890 conditions per place. [2024-11-07 19:31:04,031 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 291 selfloop transitions, 59 changer transitions 0/351 dead transitions. [2024-11-07 19:31:04,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 351 transitions, 6344 flow [2024-11-07 19:31:04,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:31:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:31:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 164 transitions. [2024-11-07 19:31:04,033 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43157894736842106 [2024-11-07 19:31:04,033 INFO L175 Difference]: Start difference. First operand has 204 places, 298 transitions, 4699 flow. Second operand 19 states and 164 transitions. [2024-11-07 19:31:04,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 351 transitions, 6344 flow [2024-11-07 19:31:04,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 351 transitions, 6107 flow, removed 76 selfloop flow, removed 10 redundant places. [2024-11-07 19:31:04,099 INFO L231 Difference]: Finished difference. Result has 224 places, 323 transitions, 5419 flow [2024-11-07 19:31:04,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4480, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5419, PETRI_PLACES=224, PETRI_TRANSITIONS=323} [2024-11-07 19:31:04,100 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 202 predicate places. [2024-11-07 19:31:04,100 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 323 transitions, 5419 flow [2024-11-07 19:31:04,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-07 19:31:04,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:04,100 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:04,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:04,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:04,301 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:04,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1274077767, now seen corresponding path program 19 times [2024-11-07 19:31:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:04,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434520843] [2024-11-07 19:31:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:04,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:04,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434520843] [2024-11-07 19:31:04,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434520843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031060809] [2024-11-07 19:31:04,350 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:04,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:04,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:04,351 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) [2024-11-07 19:31:04,352 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 [2024-11-07 19:31:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:04,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:04,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:04,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:04,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031060809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:04,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:04,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-07 19:31:04,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532760838] [2024-11-07 19:31:04,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:04,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:04,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:04,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:04,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:04,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:04,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 323 transitions, 5419 flow. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:04,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:04,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:04,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:04,721 INFO L124 PetriNetUnfolderBase]: 639/1053 cut-off events. [2024-11-07 19:31:04,721 INFO L125 PetriNetUnfolderBase]: For 25030/25030 co-relation queries the response was YES. [2024-11-07 19:31:04,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9598 conditions, 1053 events. 639/1053 cut-off events. For 25030/25030 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4808 event pairs, 148 based on Foata normal form. 4/1057 useless extension candidates. Maximal degree in co-relation 9446. Up to 918 conditions per place. [2024-11-07 19:31:04,729 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 283 selfloop transitions, 56 changer transitions 2/342 dead transitions. [2024-11-07 19:31:04,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 342 transitions, 6487 flow [2024-11-07 19:31:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 94 transitions. [2024-11-07 19:31:04,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42727272727272725 [2024-11-07 19:31:04,733 INFO L175 Difference]: Start difference. First operand has 224 places, 323 transitions, 5419 flow. Second operand 11 states and 94 transitions. [2024-11-07 19:31:04,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 342 transitions, 6487 flow [2024-11-07 19:31:04,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 342 transitions, 5746 flow, removed 350 selfloop flow, removed 8 redundant places. [2024-11-07 19:31:04,806 INFO L231 Difference]: Finished difference. Result has 227 places, 326 transitions, 4963 flow [2024-11-07 19:31:04,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4773, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4963, PETRI_PLACES=227, PETRI_TRANSITIONS=326} [2024-11-07 19:31:04,807 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 205 predicate places. [2024-11-07 19:31:04,807 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 326 transitions, 4963 flow [2024-11-07 19:31:04,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:04,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:04,807 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:04,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:05,007 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,SelfDestructingSolverStorable32 [2024-11-07 19:31:05,008 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:05,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:05,008 INFO L85 PathProgramCache]: Analyzing trace with hash -840836223, now seen corresponding path program 20 times [2024-11-07 19:31:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:05,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634372145] [2024-11-07 19:31:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:05,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:05,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:05,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634372145] [2024-11-07 19:31:05,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634372145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:05,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679668011] [2024-11-07 19:31:05,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:05,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:05,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:05,063 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) [2024-11-07 19:31:05,068 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 [2024-11-07 19:31:05,117 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:05,117 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:05,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:05,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:05,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:05,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:05,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679668011] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:05,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:05,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-07 19:31:05,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238327551] [2024-11-07 19:31:05,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:05,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:05,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:05,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:05,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:05,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:05,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 326 transitions, 4963 flow. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2024-11-07 19:31:05,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:05,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:05,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:05,509 INFO L124 PetriNetUnfolderBase]: 684/1120 cut-off events. [2024-11-07 19:31:05,509 INFO L125 PetriNetUnfolderBase]: For 30351/30351 co-relation queries the response was YES. [2024-11-07 19:31:05,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9858 conditions, 1120 events. 684/1120 cut-off events. For 30351/30351 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5173 event pairs, 144 based on Foata normal form. 10/1130 useless extension candidates. Maximal degree in co-relation 9707. Up to 923 conditions per place. [2024-11-07 19:31:05,518 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 288 selfloop transitions, 85 changer transitions 0/374 dead transitions. [2024-11-07 19:31:05,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 374 transitions, 6582 flow [2024-11-07 19:31:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:31:05,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:31:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 138 transitions. [2024-11-07 19:31:05,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43125 [2024-11-07 19:31:05,519 INFO L175 Difference]: Start difference. First operand has 227 places, 326 transitions, 4963 flow. Second operand 16 states and 138 transitions. [2024-11-07 19:31:05,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 374 transitions, 6582 flow [2024-11-07 19:31:05,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 374 transitions, 6473 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:05,607 INFO L231 Difference]: Finished difference. Result has 241 places, 351 transitions, 5764 flow [2024-11-07 19:31:05,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=4854, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5764, PETRI_PLACES=241, PETRI_TRANSITIONS=351} [2024-11-07 19:31:05,611 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 219 predicate places. [2024-11-07 19:31:05,611 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 351 transitions, 5764 flow [2024-11-07 19:31:05,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2024-11-07 19:31:05,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:05,612 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:05,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-07 19:31:05,812 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,SelfDestructingSolverStorable33 [2024-11-07 19:31:05,812 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:05,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1524064107, now seen corresponding path program 21 times [2024-11-07 19:31:05,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:05,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142595309] [2024-11-07 19:31:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:05,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:05,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:05,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:05,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142595309] [2024-11-07 19:31:05,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142595309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:05,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829764338] [2024-11-07 19:31:05,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:05,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:05,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:05,912 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) [2024-11-07 19:31:05,919 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 [2024-11-07 19:31:05,966 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:31:05,966 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:05,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:05,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:06,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:31:06,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829764338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:06,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:06,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-07 19:31:06,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848923020] [2024-11-07 19:31:06,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:06,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:06,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:06,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:06,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:06,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 351 transitions, 5764 flow. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2024-11-07 19:31:06,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:06,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:06,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:06,258 INFO L124 PetriNetUnfolderBase]: 684/1124 cut-off events. [2024-11-07 19:31:06,258 INFO L125 PetriNetUnfolderBase]: For 31832/31832 co-relation queries the response was YES. [2024-11-07 19:31:06,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10220 conditions, 1124 events. 684/1124 cut-off events. For 31832/31832 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5226 event pairs, 152 based on Foata normal form. 4/1128 useless extension candidates. Maximal degree in co-relation 10063. Up to 954 conditions per place. [2024-11-07 19:31:06,267 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 290 selfloop transitions, 73 changer transitions 2/366 dead transitions. [2024-11-07 19:31:06,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 366 transitions, 6753 flow [2024-11-07 19:31:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 95 transitions. [2024-11-07 19:31:06,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4318181818181818 [2024-11-07 19:31:06,272 INFO L175 Difference]: Start difference. First operand has 241 places, 351 transitions, 5764 flow. Second operand 11 states and 95 transitions. [2024-11-07 19:31:06,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 366 transitions, 6753 flow [2024-11-07 19:31:06,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 366 transitions, 6274 flow, removed 214 selfloop flow, removed 10 redundant places. [2024-11-07 19:31:06,369 INFO L231 Difference]: Finished difference. Result has 243 places, 351 transitions, 5458 flow [2024-11-07 19:31:06,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=5285, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5458, PETRI_PLACES=243, PETRI_TRANSITIONS=351} [2024-11-07 19:31:06,370 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 221 predicate places. [2024-11-07 19:31:06,370 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 351 transitions, 5458 flow [2024-11-07 19:31:06,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2024-11-07 19:31:06,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:06,370 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:06,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-07 19:31:06,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:06,571 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash -18594597, now seen corresponding path program 22 times [2024-11-07 19:31:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:06,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483894286] [2024-11-07 19:31:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:06,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:06,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483894286] [2024-11-07 19:31:06,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483894286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:06,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940335756] [2024-11-07 19:31:06,624 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:06,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:06,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:06,626 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:06,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-07 19:31:06,675 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:06,675 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:06,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:06,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:06,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:06,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:06,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940335756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:06,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:06,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:31:06,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653741744] [2024-11-07 19:31:06,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:06,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:31:06,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:06,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:31:06,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:31:06,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:06,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 351 transitions, 5458 flow. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 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) [2024-11-07 19:31:06,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:06,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:06,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:07,029 INFO L124 PetriNetUnfolderBase]: 718/1172 cut-off events. [2024-11-07 19:31:07,029 INFO L125 PetriNetUnfolderBase]: For 36572/36572 co-relation queries the response was YES. [2024-11-07 19:31:07,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10727 conditions, 1172 events. 718/1172 cut-off events. For 36572/36572 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5404 event pairs, 85 based on Foata normal form. 10/1182 useless extension candidates. Maximal degree in co-relation 10617. Up to 700 conditions per place. [2024-11-07 19:31:07,039 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 228 selfloop transitions, 167 changer transitions 0/396 dead transitions. [2024-11-07 19:31:07,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 396 transitions, 7190 flow [2024-11-07 19:31:07,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:31:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:31:07,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 149 transitions. [2024-11-07 19:31:07,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43823529411764706 [2024-11-07 19:31:07,040 INFO L175 Difference]: Start difference. First operand has 243 places, 351 transitions, 5458 flow. Second operand 17 states and 149 transitions. [2024-11-07 19:31:07,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 396 transitions, 7190 flow [2024-11-07 19:31:07,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 396 transitions, 7030 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:07,179 INFO L231 Difference]: Finished difference. Result has 254 places, 369 transitions, 6424 flow [2024-11-07 19:31:07,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=5298, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6424, PETRI_PLACES=254, PETRI_TRANSITIONS=369} [2024-11-07 19:31:07,180 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 232 predicate places. [2024-11-07 19:31:07,180 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 369 transitions, 6424 flow [2024-11-07 19:31:07,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 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) [2024-11-07 19:31:07,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:07,180 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:07,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-07 19:31:07,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-07 19:31:07,381 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:07,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1624324261, now seen corresponding path program 23 times [2024-11-07 19:31:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:07,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379460497] [2024-11-07 19:31:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:07,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:07,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:07,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379460497] [2024-11-07 19:31:07,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379460497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:07,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484015581] [2024-11-07 19:31:07,429 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:07,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:07,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:07,431 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:07,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-07 19:31:07,477 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:07,477 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:07,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:07,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:07,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:07,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484015581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:07,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:07,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:31:07,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697951555] [2024-11-07 19:31:07,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:07,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:07,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:07,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:07,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:07,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:07,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 369 transitions, 6424 flow. Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 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) [2024-11-07 19:31:07,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:07,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:07,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:07,864 INFO L124 PetriNetUnfolderBase]: 751/1223 cut-off events. [2024-11-07 19:31:07,864 INFO L125 PetriNetUnfolderBase]: For 41497/41497 co-relation queries the response was YES. [2024-11-07 19:31:07,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11901 conditions, 1223 events. 751/1223 cut-off events. For 41497/41497 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5741 event pairs, 163 based on Foata normal form. 4/1227 useless extension candidates. Maximal degree in co-relation 11741. Up to 1040 conditions per place. [2024-11-07 19:31:07,872 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 320 selfloop transitions, 80 changer transitions 4/405 dead transitions. [2024-11-07 19:31:07,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 405 transitions, 7889 flow [2024-11-07 19:31:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:31:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:31:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 115 transitions. [2024-11-07 19:31:07,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2024-11-07 19:31:07,873 INFO L175 Difference]: Start difference. First operand has 254 places, 369 transitions, 6424 flow. Second operand 14 states and 115 transitions. [2024-11-07 19:31:07,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 405 transitions, 7889 flow [2024-11-07 19:31:07,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 405 transitions, 7373 flow, removed 227 selfloop flow, removed 12 redundant places. [2024-11-07 19:31:07,995 INFO L231 Difference]: Finished difference. Result has 260 places, 385 transitions, 6514 flow [2024-11-07 19:31:07,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=5913, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6514, PETRI_PLACES=260, PETRI_TRANSITIONS=385} [2024-11-07 19:31:07,996 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 238 predicate places. [2024-11-07 19:31:07,996 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 385 transitions, 6514 flow [2024-11-07 19:31:07,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 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) [2024-11-07 19:31:07,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:07,996 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:08,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-07 19:31:08,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-07 19:31:08,197 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1446677544, now seen corresponding path program 24 times [2024-11-07 19:31:08,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:08,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749861726] [2024-11-07 19:31:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:08,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:08,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:08,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749861726] [2024-11-07 19:31:08,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749861726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:08,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679856383] [2024-11-07 19:31:08,251 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:08,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:08,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:08,253 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:08,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-07 19:31:08,303 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:31:08,303 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:08,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:08,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:08,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:08,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679856383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:08,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:08,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:31:08,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754533112] [2024-11-07 19:31:08,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:08,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:08,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:08,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:08,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:08,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 385 transitions, 6514 flow. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2024-11-07 19:31:08,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:08,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:08,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:08,783 INFO L124 PetriNetUnfolderBase]: 831/1336 cut-off events. [2024-11-07 19:31:08,784 INFO L125 PetriNetUnfolderBase]: For 49930/49930 co-relation queries the response was YES. [2024-11-07 19:31:08,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13170 conditions, 1336 events. 831/1336 cut-off events. For 49930/49930 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6276 event pairs, 38 based on Foata normal form. 15/1351 useless extension candidates. Maximal degree in co-relation 13010. Up to 824 conditions per place. [2024-11-07 19:31:08,792 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 321 selfloop transitions, 139 changer transitions 5/466 dead transitions. [2024-11-07 19:31:08,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 466 transitions, 9083 flow [2024-11-07 19:31:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:31:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:31:08,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 147 transitions. [2024-11-07 19:31:08,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4323529411764706 [2024-11-07 19:31:08,793 INFO L175 Difference]: Start difference. First operand has 260 places, 385 transitions, 6514 flow. Second operand 17 states and 147 transitions. [2024-11-07 19:31:08,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 466 transitions, 9083 flow [2024-11-07 19:31:08,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 466 transitions, 8904 flow, removed 67 selfloop flow, removed 6 redundant places. [2024-11-07 19:31:08,924 INFO L231 Difference]: Finished difference. Result has 272 places, 427 transitions, 7950 flow [2024-11-07 19:31:08,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=6343, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7950, PETRI_PLACES=272, PETRI_TRANSITIONS=427} [2024-11-07 19:31:08,925 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 250 predicate places. [2024-11-07 19:31:08,925 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 427 transitions, 7950 flow [2024-11-07 19:31:08,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2024-11-07 19:31:08,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:08,925 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:08,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-07 19:31:09,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-07 19:31:09,130 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:09,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1643507096, now seen corresponding path program 25 times [2024-11-07 19:31:09,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:09,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899138706] [2024-11-07 19:31:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:09,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:09,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:09,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899138706] [2024-11-07 19:31:09,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899138706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:09,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528577740] [2024-11-07 19:31:09,180 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:09,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:09,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:09,182 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:09,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-07 19:31:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:09,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:09,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:09,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:09,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528577740] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:09,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:09,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:31:09,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682157418] [2024-11-07 19:31:09,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:09,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:09,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:09,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:09,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:09,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:09,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 427 transitions, 7950 flow. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2024-11-07 19:31:09,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:09,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:09,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:09,765 INFO L124 PetriNetUnfolderBase]: 888/1422 cut-off events. [2024-11-07 19:31:09,765 INFO L125 PetriNetUnfolderBase]: For 60989/60989 co-relation queries the response was YES. [2024-11-07 19:31:09,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14950 conditions, 1422 events. 888/1422 cut-off events. For 60989/60989 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6744 event pairs, 37 based on Foata normal form. 36/1458 useless extension candidates. Maximal degree in co-relation 14696. Up to 966 conditions per place. [2024-11-07 19:31:09,777 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 352 selfloop transitions, 142 changer transitions 0/495 dead transitions. [2024-11-07 19:31:09,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 495 transitions, 10486 flow [2024-11-07 19:31:09,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 19:31:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 19:31:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 190 transitions. [2024-11-07 19:31:09,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-11-07 19:31:09,778 INFO L175 Difference]: Start difference. First operand has 272 places, 427 transitions, 7950 flow. Second operand 23 states and 190 transitions. [2024-11-07 19:31:09,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 495 transitions, 10486 flow [2024-11-07 19:31:09,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 495 transitions, 9152 flow, removed 601 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:09,961 INFO L231 Difference]: Finished difference. Result has 297 places, 465 transitions, 8265 flow [2024-11-07 19:31:09,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=7117, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8265, PETRI_PLACES=297, PETRI_TRANSITIONS=465} [2024-11-07 19:31:09,962 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 275 predicate places. [2024-11-07 19:31:09,962 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 465 transitions, 8265 flow [2024-11-07 19:31:09,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2024-11-07 19:31:09,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:09,962 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:09,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-07 19:31:10,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-07 19:31:10,163 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:10,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:10,163 INFO L85 PathProgramCache]: Analyzing trace with hash 571037951, now seen corresponding path program 26 times [2024-11-07 19:31:10,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:10,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471235230] [2024-11-07 19:31:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:10,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:10,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471235230] [2024-11-07 19:31:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471235230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996929188] [2024-11-07 19:31:10,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:10,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:10,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:10,208 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:10,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-07 19:31:10,257 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:10,257 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:10,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:10,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:10,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:10,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996929188] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:10,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:10,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-07 19:31:10,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437410083] [2024-11-07 19:31:10,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:10,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:31:10,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:31:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:31:10,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:10,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 465 transitions, 8265 flow. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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) [2024-11-07 19:31:10,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:10,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:10,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:10,624 INFO L124 PetriNetUnfolderBase]: 890/1436 cut-off events. [2024-11-07 19:31:10,624 INFO L125 PetriNetUnfolderBase]: For 52317/52317 co-relation queries the response was YES. [2024-11-07 19:31:10,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14331 conditions, 1436 events. 890/1436 cut-off events. For 52317/52317 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6853 event pairs, 138 based on Foata normal form. 2/1438 useless extension candidates. Maximal degree in co-relation 14113. Up to 1025 conditions per place. [2024-11-07 19:31:10,637 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 376 selfloop transitions, 100 changer transitions 5/482 dead transitions. [2024-11-07 19:31:10,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 482 transitions, 9540 flow [2024-11-07 19:31:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:31:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:31:10,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 66 transitions. [2024-11-07 19:31:10,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2024-11-07 19:31:10,638 INFO L175 Difference]: Start difference. First operand has 297 places, 465 transitions, 8265 flow. Second operand 7 states and 66 transitions. [2024-11-07 19:31:10,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 482 transitions, 9540 flow [2024-11-07 19:31:10,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 482 transitions, 9106 flow, removed 191 selfloop flow, removed 7 redundant places. [2024-11-07 19:31:10,846 INFO L231 Difference]: Finished difference. Result has 299 places, 464 transitions, 8023 flow [2024-11-07 19:31:10,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=7831, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8023, PETRI_PLACES=299, PETRI_TRANSITIONS=464} [2024-11-07 19:31:10,847 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 277 predicate places. [2024-11-07 19:31:10,847 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 464 transitions, 8023 flow [2024-11-07 19:31:10,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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) [2024-11-07 19:31:10,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:10,847 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:10,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-07 19:31:11,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-07 19:31:11,051 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:11,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2135413233, now seen corresponding path program 27 times [2024-11-07 19:31:11,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:11,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256675399] [2024-11-07 19:31:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:11,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:11,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256675399] [2024-11-07 19:31:11,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256675399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:11,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917556247] [2024-11-07 19:31:11,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:11,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:11,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:11,096 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:11,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-07 19:31:11,157 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:31:11,157 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:11,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:11,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:11,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:11,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:11,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917556247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:11,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:11,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-07 19:31:11,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324057497] [2024-11-07 19:31:11,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:11,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:11,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:11,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:11,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:11,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:11,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 464 transitions, 8023 flow. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:11,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:11,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:11,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:11,618 INFO L124 PetriNetUnfolderBase]: 883/1423 cut-off events. [2024-11-07 19:31:11,618 INFO L125 PetriNetUnfolderBase]: For 50714/50714 co-relation queries the response was YES. [2024-11-07 19:31:11,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13982 conditions, 1423 events. 883/1423 cut-off events. For 50714/50714 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6783 event pairs, 139 based on Foata normal form. 4/1427 useless extension candidates. Maximal degree in co-relation 13863. Up to 1031 conditions per place. [2024-11-07 19:31:11,635 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 360 selfloop transitions, 116 changer transitions 3/480 dead transitions. [2024-11-07 19:31:11,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 480 transitions, 9316 flow [2024-11-07 19:31:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 93 transitions. [2024-11-07 19:31:11,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42272727272727273 [2024-11-07 19:31:11,636 INFO L175 Difference]: Start difference. First operand has 299 places, 464 transitions, 8023 flow. Second operand 11 states and 93 transitions. [2024-11-07 19:31:11,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 480 transitions, 9316 flow [2024-11-07 19:31:11,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 480 transitions, 9112 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:11,838 INFO L231 Difference]: Finished difference. Result has 303 places, 462 transitions, 8053 flow [2024-11-07 19:31:11,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=7807, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8053, PETRI_PLACES=303, PETRI_TRANSITIONS=462} [2024-11-07 19:31:11,839 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 281 predicate places. [2024-11-07 19:31:11,839 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 462 transitions, 8053 flow [2024-11-07 19:31:11,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:11,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:11,839 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:11,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-07 19:31:12,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-07 19:31:12,040 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:12,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:12,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1358263634, now seen corresponding path program 28 times [2024-11-07 19:31:12,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:12,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170570101] [2024-11-07 19:31:12,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:12,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:12,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:12,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170570101] [2024-11-07 19:31:12,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170570101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:12,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117006707] [2024-11-07 19:31:12,091 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:12,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:12,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:12,093 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:12,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-07 19:31:12,140 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:12,141 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:12,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:12,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:12,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:12,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:12,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117006707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:12,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:12,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-07 19:31:12,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488547021] [2024-11-07 19:31:12,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:12,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:12,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:12,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:12,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:12,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:12,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 462 transitions, 8053 flow. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 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) [2024-11-07 19:31:12,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:12,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:12,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:12,572 INFO L124 PetriNetUnfolderBase]: 920/1482 cut-off events. [2024-11-07 19:31:12,572 INFO L125 PetriNetUnfolderBase]: For 53450/53450 co-relation queries the response was YES. [2024-11-07 19:31:12,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14503 conditions, 1482 events. 920/1482 cut-off events. For 53450/53450 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7097 event pairs, 44 based on Foata normal form. 4/1486 useless extension candidates. Maximal degree in co-relation 14385. Up to 1038 conditions per place. [2024-11-07 19:31:12,585 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 380 selfloop transitions, 125 changer transitions 0/506 dead transitions. [2024-11-07 19:31:12,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 506 transitions, 9634 flow [2024-11-07 19:31:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:31:12,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:31:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 115 transitions. [2024-11-07 19:31:12,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2024-11-07 19:31:12,586 INFO L175 Difference]: Start difference. First operand has 303 places, 462 transitions, 8053 flow. Second operand 14 states and 115 transitions. [2024-11-07 19:31:12,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 506 transitions, 9634 flow [2024-11-07 19:31:12,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 506 transitions, 9376 flow, removed 14 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:12,781 INFO L231 Difference]: Finished difference. Result has 311 places, 484 transitions, 8362 flow [2024-11-07 19:31:12,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=7769, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8362, PETRI_PLACES=311, PETRI_TRANSITIONS=484} [2024-11-07 19:31:12,781 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 289 predicate places. [2024-11-07 19:31:12,782 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 484 transitions, 8362 flow [2024-11-07 19:31:12,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 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) [2024-11-07 19:31:12,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:12,782 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:12,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:12,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:12,984 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:12,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:12,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1613823300, now seen corresponding path program 29 times [2024-11-07 19:31:12,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:12,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866379351] [2024-11-07 19:31:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866379351] [2024-11-07 19:31:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866379351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782156910] [2024-11-07 19:31:13,033 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:13,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:13,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:13,036 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:13,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-07 19:31:13,080 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:31:13,080 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:13,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:13,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:13,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:13,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782156910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:13,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:13,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-07 19:31:13,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972435852] [2024-11-07 19:31:13,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:13,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:13,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:13,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:13,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:13,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:13,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 484 transitions, 8362 flow. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:13,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:13,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:13,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:13,596 INFO L124 PetriNetUnfolderBase]: 921/1489 cut-off events. [2024-11-07 19:31:13,597 INFO L125 PetriNetUnfolderBase]: For 53457/53457 co-relation queries the response was YES. [2024-11-07 19:31:13,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14610 conditions, 1489 events. 921/1489 cut-off events. For 53457/53457 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7224 event pairs, 53 based on Foata normal form. 6/1495 useless extension candidates. Maximal degree in co-relation 14486. Up to 962 conditions per place. [2024-11-07 19:31:13,608 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 367 selfloop transitions, 138 changer transitions 3/509 dead transitions. [2024-11-07 19:31:13,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 509 transitions, 9763 flow [2024-11-07 19:31:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:31:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:31:13,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 121 transitions. [2024-11-07 19:31:13,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43214285714285716 [2024-11-07 19:31:13,612 INFO L175 Difference]: Start difference. First operand has 311 places, 484 transitions, 8362 flow. Second operand 14 states and 121 transitions. [2024-11-07 19:31:13,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 509 transitions, 9763 flow [2024-11-07 19:31:13,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 509 transitions, 9611 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:13,787 INFO L231 Difference]: Finished difference. Result has 321 places, 484 transitions, 8474 flow [2024-11-07 19:31:13,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=8211, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8474, PETRI_PLACES=321, PETRI_TRANSITIONS=484} [2024-11-07 19:31:13,787 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 299 predicate places. [2024-11-07 19:31:13,787 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 484 transitions, 8474 flow [2024-11-07 19:31:13,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:13,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:13,788 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:13,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-07 19:31:13,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:13,988 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:13,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash -438573290, now seen corresponding path program 30 times [2024-11-07 19:31:13,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:13,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839182980] [2024-11-07 19:31:13,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:14,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:14,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839182980] [2024-11-07 19:31:14,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839182980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:14,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191115772] [2024-11-07 19:31:14,024 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:14,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:14,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:14,026 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:14,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-07 19:31:14,073 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:31:14,073 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:14,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:14,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:14,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:14,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191115772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:14,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:14,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-07 19:31:14,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940496087] [2024-11-07 19:31:14,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:14,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:31:14,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:31:14,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:31:14,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:14,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 484 transitions, 8474 flow. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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) [2024-11-07 19:31:14,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:14,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:14,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:14,535 INFO L124 PetriNetUnfolderBase]: 966/1562 cut-off events. [2024-11-07 19:31:14,536 INFO L125 PetriNetUnfolderBase]: For 56520/56520 co-relation queries the response was YES. [2024-11-07 19:31:14,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15397 conditions, 1562 events. 966/1562 cut-off events. For 56520/56520 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7638 event pairs, 15 based on Foata normal form. 6/1568 useless extension candidates. Maximal degree in co-relation 15271. Up to 788 conditions per place. [2024-11-07 19:31:14,550 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 335 selfloop transitions, 199 changer transitions 0/535 dead transitions. [2024-11-07 19:31:14,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 535 transitions, 10451 flow [2024-11-07 19:31:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:31:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:31:14,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 93 transitions. [2024-11-07 19:31:14,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.465 [2024-11-07 19:31:14,551 INFO L175 Difference]: Start difference. First operand has 321 places, 484 transitions, 8474 flow. Second operand 10 states and 93 transitions. [2024-11-07 19:31:14,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 535 transitions, 10451 flow [2024-11-07 19:31:14,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 535 transitions, 10295 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:14,770 INFO L231 Difference]: Finished difference. Result has 324 places, 507 transitions, 9191 flow [2024-11-07 19:31:14,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=8290, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9191, PETRI_PLACES=324, PETRI_TRANSITIONS=507} [2024-11-07 19:31:14,770 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 302 predicate places. [2024-11-07 19:31:14,771 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 507 transitions, 9191 flow [2024-11-07 19:31:14,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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) [2024-11-07 19:31:14,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:14,771 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:14,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:14,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-07 19:31:14,971 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:14,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1369561908, now seen corresponding path program 31 times [2024-11-07 19:31:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:14,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444289220] [2024-11-07 19:31:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:14,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:15,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:15,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:15,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444289220] [2024-11-07 19:31:15,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444289220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:15,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716117724] [2024-11-07 19:31:15,013 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:15,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:15,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:15,015 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:15,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-07 19:31:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:15,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:15,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:15,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:15,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716117724] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:15,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:15,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:31:15,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15053429] [2024-11-07 19:31:15,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:15,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:31:15,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:15,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:31:15,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:31:15,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:15,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 507 transitions, 9191 flow. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 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) [2024-11-07 19:31:15,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:15,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:15,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:15,629 INFO L124 PetriNetUnfolderBase]: 989/1611 cut-off events. [2024-11-07 19:31:15,630 INFO L125 PetriNetUnfolderBase]: For 61481/61481 co-relation queries the response was YES. [2024-11-07 19:31:15,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16170 conditions, 1611 events. 989/1611 cut-off events. For 61481/61481 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 8091 event pairs, 45 based on Foata normal form. 12/1623 useless extension candidates. Maximal degree in co-relation 16042. Up to 942 conditions per place. [2024-11-07 19:31:15,649 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 347 selfloop transitions, 201 changer transitions 0/549 dead transitions. [2024-11-07 19:31:15,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 549 transitions, 10952 flow [2024-11-07 19:31:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:31:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:31:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 137 transitions. [2024-11-07 19:31:15,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.428125 [2024-11-07 19:31:15,650 INFO L175 Difference]: Start difference. First operand has 324 places, 507 transitions, 9191 flow. Second operand 16 states and 137 transitions. [2024-11-07 19:31:15,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 549 transitions, 10952 flow [2024-11-07 19:31:15,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 549 transitions, 10635 flow, removed 26 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:15,873 INFO L231 Difference]: Finished difference. Result has 335 places, 523 transitions, 9755 flow [2024-11-07 19:31:15,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=8835, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9755, PETRI_PLACES=335, PETRI_TRANSITIONS=523} [2024-11-07 19:31:15,873 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 313 predicate places. [2024-11-07 19:31:15,874 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 523 transitions, 9755 flow [2024-11-07 19:31:15,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 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) [2024-11-07 19:31:15,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:15,874 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:15,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-07 19:31:16,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,37 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:16,074 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:16,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:16,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1787176280, now seen corresponding path program 32 times [2024-11-07 19:31:16,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:16,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366053832] [2024-11-07 19:31:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:16,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:16,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366053832] [2024-11-07 19:31:16,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366053832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357047367] [2024-11-07 19:31:16,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:16,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:16,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:16,126 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:16,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-07 19:31:16,190 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:16,190 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:16,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:16,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:16,236 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:16,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357047367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:16,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:16,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-07 19:31:16,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991638341] [2024-11-07 19:31:16,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:16,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:31:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:16,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:31:16,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:31:16,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:16,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 523 transitions, 9755 flow. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:16,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:16,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:16,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:16,719 INFO L124 PetriNetUnfolderBase]: 1038/1683 cut-off events. [2024-11-07 19:31:16,720 INFO L125 PetriNetUnfolderBase]: For 73126/73126 co-relation queries the response was YES. [2024-11-07 19:31:16,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17828 conditions, 1683 events. 1038/1683 cut-off events. For 73126/73126 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 8416 event pairs, 50 based on Foata normal form. 12/1695 useless extension candidates. Maximal degree in co-relation 17700. Up to 896 conditions per place. [2024-11-07 19:31:16,741 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 326 selfloop transitions, 252 changer transitions 0/579 dead transitions. [2024-11-07 19:31:16,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 579 transitions, 12326 flow [2024-11-07 19:31:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:31:16,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:31:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 146 transitions. [2024-11-07 19:31:16,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4294117647058823 [2024-11-07 19:31:16,743 INFO L175 Difference]: Start difference. First operand has 335 places, 523 transitions, 9755 flow. Second operand 17 states and 146 transitions. [2024-11-07 19:31:16,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 579 transitions, 12326 flow [2024-11-07 19:31:16,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 579 transitions, 11784 flow, removed 103 selfloop flow, removed 16 redundant places. [2024-11-07 19:31:16,967 INFO L231 Difference]: Finished difference. Result has 340 places, 557 transitions, 11202 flow [2024-11-07 19:31:16,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=9197, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11202, PETRI_PLACES=340, PETRI_TRANSITIONS=557} [2024-11-07 19:31:16,968 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 318 predicate places. [2024-11-07 19:31:16,968 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 557 transitions, 11202 flow [2024-11-07 19:31:16,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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) [2024-11-07 19:31:16,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:16,968 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:16,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:17,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,38 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:17,169 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:17,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:17,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2145914194, now seen corresponding path program 33 times [2024-11-07 19:31:17,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:17,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079296056] [2024-11-07 19:31:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:17,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:17,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:17,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079296056] [2024-11-07 19:31:17,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079296056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:17,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629791094] [2024-11-07 19:31:17,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:17,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:17,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:17,219 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:17,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-07 19:31:17,267 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:31:17,267 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:17,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:17,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:17,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629791094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:17,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:31:17,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034184087] [2024-11-07 19:31:17,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:17,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:31:17,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:17,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:31:17,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:31:17,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:17,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 557 transitions, 11202 flow. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:31:17,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:17,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:17,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:17,768 INFO L124 PetriNetUnfolderBase]: 1036/1675 cut-off events. [2024-11-07 19:31:17,768 INFO L125 PetriNetUnfolderBase]: For 75427/75427 co-relation queries the response was YES. [2024-11-07 19:31:17,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18147 conditions, 1675 events. 1036/1675 cut-off events. For 75427/75427 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 8458 event pairs, 73 based on Foata normal form. 6/1681 useless extension candidates. Maximal degree in co-relation 18020. Up to 962 conditions per place. [2024-11-07 19:31:17,786 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 394 selfloop transitions, 179 changer transitions 3/577 dead transitions. [2024-11-07 19:31:17,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 577 transitions, 12632 flow [2024-11-07 19:31:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:31:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:31:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 113 transitions. [2024-11-07 19:31:17,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4346153846153846 [2024-11-07 19:31:17,787 INFO L175 Difference]: Start difference. First operand has 340 places, 557 transitions, 11202 flow. Second operand 13 states and 113 transitions. [2024-11-07 19:31:17,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 577 transitions, 12632 flow [2024-11-07 19:31:18,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 577 transitions, 11849 flow, removed 366 selfloop flow, removed 7 redundant places. [2024-11-07 19:31:18,087 INFO L231 Difference]: Finished difference. Result has 345 places, 555 transitions, 10791 flow [2024-11-07 19:31:18,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=10435, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10791, PETRI_PLACES=345, PETRI_TRANSITIONS=555} [2024-11-07 19:31:18,088 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 323 predicate places. [2024-11-07 19:31:18,088 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 555 transitions, 10791 flow [2024-11-07 19:31:18,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2024-11-07 19:31:18,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:18,089 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:18,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-07 19:31:18,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-07 19:31:18,289 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:18,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -936318785, now seen corresponding path program 34 times [2024-11-07 19:31:18,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:18,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044432394] [2024-11-07 19:31:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:18,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:18,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:18,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044432394] [2024-11-07 19:31:18,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044432394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:18,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578438188] [2024-11-07 19:31:18,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:18,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:18,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:18,330 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:18,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-07 19:31:18,376 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:18,376 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:18,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:31:18,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:18,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:18,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578438188] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:18,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:18,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:31:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078892361] [2024-11-07 19:31:18,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:18,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:31:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:31:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:31:18,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:18,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 555 transitions, 10791 flow. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 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) [2024-11-07 19:31:18,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:18,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:18,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:18,830 INFO L124 PetriNetUnfolderBase]: 1034/1664 cut-off events. [2024-11-07 19:31:18,830 INFO L125 PetriNetUnfolderBase]: For 56393/56393 co-relation queries the response was YES. [2024-11-07 19:31:18,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17117 conditions, 1664 events. 1034/1664 cut-off events. For 56393/56393 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 8302 event pairs, 163 based on Foata normal form. 4/1668 useless extension candidates. Maximal degree in co-relation 16990. Up to 1141 conditions per place. [2024-11-07 19:31:18,847 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 376 selfloop transitions, 193 changer transitions 2/572 dead transitions. [2024-11-07 19:31:18,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 572 transitions, 12205 flow [2024-11-07 19:31:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:31:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:31:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 104 transitions. [2024-11-07 19:31:18,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-11-07 19:31:18,848 INFO L175 Difference]: Start difference. First operand has 345 places, 555 transitions, 10791 flow. Second operand 12 states and 104 transitions. [2024-11-07 19:31:18,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 572 transitions, 12205 flow [2024-11-07 19:31:19,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 572 transitions, 11815 flow, removed 10 selfloop flow, removed 13 redundant places. [2024-11-07 19:31:19,080 INFO L231 Difference]: Finished difference. Result has 340 places, 553 transitions, 10815 flow [2024-11-07 19:31:19,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=10381, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10815, PETRI_PLACES=340, PETRI_TRANSITIONS=553} [2024-11-07 19:31:19,080 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 318 predicate places. [2024-11-07 19:31:19,080 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 553 transitions, 10815 flow [2024-11-07 19:31:19,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 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) [2024-11-07 19:31:19,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:19,081 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:19,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:19,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-07 19:31:19,281 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:19,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:19,282 INFO L85 PathProgramCache]: Analyzing trace with hash -701783739, now seen corresponding path program 35 times [2024-11-07 19:31:19,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:19,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591393135] [2024-11-07 19:31:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:19,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:19,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591393135] [2024-11-07 19:31:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591393135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439503100] [2024-11-07 19:31:19,425 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:19,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:19,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:19,427 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:19,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-07 19:31:19,478 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:31:19,478 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:19,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:19,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:19,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:19,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:19,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439503100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:19,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:19,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-07 19:31:19,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836577994] [2024-11-07 19:31:19,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:19,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:31:19,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:19,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:31:19,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:31:19,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:19,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 553 transitions, 10815 flow. Second operand has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 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) [2024-11-07 19:31:19,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:19,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:19,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:20,353 INFO L124 PetriNetUnfolderBase]: 1201/1992 cut-off events. [2024-11-07 19:31:20,353 INFO L125 PetriNetUnfolderBase]: For 65476/65476 co-relation queries the response was YES. [2024-11-07 19:31:20,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20400 conditions, 1992 events. 1201/1992 cut-off events. For 65476/65476 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 10689 event pairs, 26 based on Foata normal form. 2/1994 useless extension candidates. Maximal degree in co-relation 20274. Up to 1548 conditions per place. [2024-11-07 19:31:20,371 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 560 selfloop transitions, 107 changer transitions 12/680 dead transitions. [2024-11-07 19:31:20,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 680 transitions, 14313 flow [2024-11-07 19:31:20,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 121 transitions. [2024-11-07 19:31:20,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-07 19:31:20,372 INFO L175 Difference]: Start difference. First operand has 340 places, 553 transitions, 10815 flow. Second operand 11 states and 121 transitions. [2024-11-07 19:31:20,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 680 transitions, 14313 flow [2024-11-07 19:31:20,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 680 transitions, 13841 flow, removed 15 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:20,632 INFO L231 Difference]: Finished difference. Result has 347 places, 611 transitions, 12023 flow [2024-11-07 19:31:20,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=10409, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12023, PETRI_PLACES=347, PETRI_TRANSITIONS=611} [2024-11-07 19:31:20,633 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 325 predicate places. [2024-11-07 19:31:20,633 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 611 transitions, 12023 flow [2024-11-07 19:31:20,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 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) [2024-11-07 19:31:20,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:20,633 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:20,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:20,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-07 19:31:20,838 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:20,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:20,838 INFO L85 PathProgramCache]: Analyzing trace with hash 416677767, now seen corresponding path program 36 times [2024-11-07 19:31:20,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:20,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756117027] [2024-11-07 19:31:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:20,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756117027] [2024-11-07 19:31:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756117027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014165482] [2024-11-07 19:31:21,000 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:21,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:21,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:21,002 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:21,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-07 19:31:21,053 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:31:21,054 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:21,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:21,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:21,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:21,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014165482] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:21,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:21,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-07 19:31:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789704833] [2024-11-07 19:31:21,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:21,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:21,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:21,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 611 transitions, 12023 flow. Second operand has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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) [2024-11-07 19:31:21,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:21,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:21,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:22,102 INFO L124 PetriNetUnfolderBase]: 1206/2009 cut-off events. [2024-11-07 19:31:22,102 INFO L125 PetriNetUnfolderBase]: For 68120/68120 co-relation queries the response was YES. [2024-11-07 19:31:22,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20859 conditions, 2009 events. 1206/2009 cut-off events. For 68120/68120 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 10888 event pairs, 26 based on Foata normal form. 2/2011 useless extension candidates. Maximal degree in co-relation 20724. Up to 1686 conditions per place. [2024-11-07 19:31:22,123 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 557 selfloop transitions, 93 changer transitions 13/664 dead transitions. [2024-11-07 19:31:22,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 664 transitions, 14032 flow [2024-11-07 19:31:22,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:31:22,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:31:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 118 transitions. [2024-11-07 19:31:22,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-11-07 19:31:22,124 INFO L175 Difference]: Start difference. First operand has 347 places, 611 transitions, 12023 flow. Second operand 12 states and 118 transitions. [2024-11-07 19:31:22,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 664 transitions, 14032 flow [2024-11-07 19:31:22,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 664 transitions, 13712 flow, removed 159 selfloop flow, removed 3 redundant places. [2024-11-07 19:31:22,447 INFO L231 Difference]: Finished difference. Result has 359 places, 623 transitions, 12308 flow [2024-11-07 19:31:22,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=11731, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12308, PETRI_PLACES=359, PETRI_TRANSITIONS=623} [2024-11-07 19:31:22,448 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 337 predicate places. [2024-11-07 19:31:22,448 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 623 transitions, 12308 flow [2024-11-07 19:31:22,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 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) [2024-11-07 19:31:22,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:22,448 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:22,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-07 19:31:22,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-07 19:31:22,653 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:22,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1032936729, now seen corresponding path program 37 times [2024-11-07 19:31:22,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:22,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265111246] [2024-11-07 19:31:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:22,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:22,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265111246] [2024-11-07 19:31:22,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265111246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:22,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855930175] [2024-11-07 19:31:22,775 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:22,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:22,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:22,777 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:22,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-07 19:31:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:22,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:22,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:22,907 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:22,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:23,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855930175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:23,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:23,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-07 19:31:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016030887] [2024-11-07 19:31:23,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:23,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:31:23,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:23,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:31:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:31:23,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:23,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 623 transitions, 12308 flow. Second operand has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 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) [2024-11-07 19:31:23,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:23,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:23,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:23,648 INFO L124 PetriNetUnfolderBase]: 1192/1976 cut-off events. [2024-11-07 19:31:23,648 INFO L125 PetriNetUnfolderBase]: For 62343/62343 co-relation queries the response was YES. [2024-11-07 19:31:23,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20364 conditions, 1976 events. 1192/1976 cut-off events. For 62343/62343 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 10586 event pairs, 25 based on Foata normal form. 1/1977 useless extension candidates. Maximal degree in co-relation 20225. Up to 1612 conditions per place. [2024-11-07 19:31:23,670 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 549 selfloop transitions, 111 changer transitions 4/665 dead transitions. [2024-11-07 19:31:23,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 665 transitions, 14099 flow [2024-11-07 19:31:23,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 112 transitions. [2024-11-07 19:31:23,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2024-11-07 19:31:23,675 INFO L175 Difference]: Start difference. First operand has 359 places, 623 transitions, 12308 flow. Second operand 11 states and 112 transitions. [2024-11-07 19:31:23,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 665 transitions, 14099 flow [2024-11-07 19:31:24,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 665 transitions, 13781 flow, removed 107 selfloop flow, removed 6 redundant places. [2024-11-07 19:31:24,008 INFO L231 Difference]: Finished difference. Result has 364 places, 630 transitions, 12449 flow [2024-11-07 19:31:24,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=12002, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12449, PETRI_PLACES=364, PETRI_TRANSITIONS=630} [2024-11-07 19:31:24,009 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 342 predicate places. [2024-11-07 19:31:24,009 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 630 transitions, 12449 flow [2024-11-07 19:31:24,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 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) [2024-11-07 19:31:24,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:24,009 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:24,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-07 19:31:24,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:24,210 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:24,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:24,210 INFO L85 PathProgramCache]: Analyzing trace with hash 112693913, now seen corresponding path program 38 times [2024-11-07 19:31:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:24,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446857743] [2024-11-07 19:31:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:24,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:24,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:24,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446857743] [2024-11-07 19:31:24,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446857743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:24,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805130379] [2024-11-07 19:31:24,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:24,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:24,352 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:24,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-07 19:31:24,404 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:24,405 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:24,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:24,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:24,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:24,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805130379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:24,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:24,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-07 19:31:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814580983] [2024-11-07 19:31:24,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:24,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:31:24,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:24,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:31:24,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:31:24,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:24,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 630 transitions, 12449 flow. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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) [2024-11-07 19:31:24,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:24,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:24,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:25,297 INFO L124 PetriNetUnfolderBase]: 1190/1966 cut-off events. [2024-11-07 19:31:25,297 INFO L125 PetriNetUnfolderBase]: For 63152/63152 co-relation queries the response was YES. [2024-11-07 19:31:25,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20105 conditions, 1966 events. 1190/1966 cut-off events. For 63152/63152 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 10489 event pairs, 24 based on Foata normal form. 2/1968 useless extension candidates. Maximal degree in co-relation 19966. Up to 1551 conditions per place. [2024-11-07 19:31:25,319 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 541 selfloop transitions, 109 changer transitions 13/664 dead transitions. [2024-11-07 19:31:25,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 664 transitions, 14093 flow [2024-11-07 19:31:25,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:25,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:25,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 110 transitions. [2024-11-07 19:31:25,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:31:25,320 INFO L175 Difference]: Start difference. First operand has 364 places, 630 transitions, 12449 flow. Second operand 11 states and 110 transitions. [2024-11-07 19:31:25,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 664 transitions, 14093 flow [2024-11-07 19:31:25,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 664 transitions, 13811 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-07 19:31:25,644 INFO L231 Difference]: Finished difference. Result has 367 places, 628 transitions, 12393 flow [2024-11-07 19:31:25,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=12171, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12393, PETRI_PLACES=367, PETRI_TRANSITIONS=628} [2024-11-07 19:31:25,645 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 345 predicate places. [2024-11-07 19:31:25,645 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 628 transitions, 12393 flow [2024-11-07 19:31:25,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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) [2024-11-07 19:31:25,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:25,645 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:25,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:25,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,44 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:25,846 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:25,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:25,847 INFO L85 PathProgramCache]: Analyzing trace with hash 571292345, now seen corresponding path program 39 times [2024-11-07 19:31:25,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:25,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034486967] [2024-11-07 19:31:25,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:25,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034486967] [2024-11-07 19:31:26,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034486967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315437475] [2024-11-07 19:31:26,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:26,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:26,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:26,022 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:26,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-07 19:31:26,072 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:31:26,072 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:26,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:26,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:26,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:26,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315437475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:26,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:26,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 18 [2024-11-07 19:31:26,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444932331] [2024-11-07 19:31:26,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:26,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:31:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:26,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:31:26,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:31:26,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:26,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 628 transitions, 12393 flow. Second operand has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 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) [2024-11-07 19:31:26,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:26,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:26,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:26,954 INFO L124 PetriNetUnfolderBase]: 1247/2070 cut-off events. [2024-11-07 19:31:26,954 INFO L125 PetriNetUnfolderBase]: For 68740/68740 co-relation queries the response was YES. [2024-11-07 19:31:26,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21144 conditions, 2070 events. 1247/2070 cut-off events. For 68740/68740 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 11238 event pairs, 32 based on Foata normal form. 1/2071 useless extension candidates. Maximal degree in co-relation 21004. Up to 1824 conditions per place. [2024-11-07 19:31:26,980 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 598 selfloop transitions, 86 changer transitions 6/691 dead transitions. [2024-11-07 19:31:26,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 691 transitions, 14784 flow [2024-11-07 19:31:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:31:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:31:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 88 transitions. [2024-11-07 19:31:26,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-07 19:31:26,981 INFO L175 Difference]: Start difference. First operand has 367 places, 628 transitions, 12393 flow. Second operand 8 states and 88 transitions. [2024-11-07 19:31:26,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 691 transitions, 14784 flow [2024-11-07 19:31:27,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 691 transitions, 14431 flow, removed 53 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:27,320 INFO L231 Difference]: Finished difference. Result has 365 places, 656 transitions, 12888 flow [2024-11-07 19:31:27,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=12052, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12888, PETRI_PLACES=365, PETRI_TRANSITIONS=656} [2024-11-07 19:31:27,321 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 343 predicate places. [2024-11-07 19:31:27,321 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 656 transitions, 12888 flow [2024-11-07 19:31:27,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 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) [2024-11-07 19:31:27,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:27,321 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:27,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:27,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,45 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:27,522 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:27,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:27,522 INFO L85 PathProgramCache]: Analyzing trace with hash 493537835, now seen corresponding path program 40 times [2024-11-07 19:31:27,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:27,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041729956] [2024-11-07 19:31:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:27,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:27,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:27,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041729956] [2024-11-07 19:31:27,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041729956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:27,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495925115] [2024-11-07 19:31:27,637 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:27,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:27,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:27,640 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:27,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-07 19:31:27,700 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:27,700 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:27,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:27,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:27,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:27,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:27,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495925115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:27,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:27,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 17 [2024-11-07 19:31:27,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539283363] [2024-11-07 19:31:27,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:27,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:31:27,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:31:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:31:27,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:27,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 656 transitions, 12888 flow. Second operand has 18 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 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) [2024-11-07 19:31:27,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:27,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:27,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:28,501 INFO L124 PetriNetUnfolderBase]: 1243/2058 cut-off events. [2024-11-07 19:31:28,502 INFO L125 PetriNetUnfolderBase]: For 69132/69132 co-relation queries the response was YES. [2024-11-07 19:31:28,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21049 conditions, 2058 events. 1243/2058 cut-off events. For 69132/69132 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 11089 event pairs, 33 based on Foata normal form. 1/2059 useless extension candidates. Maximal degree in co-relation 20908. Up to 1824 conditions per place. [2024-11-07 19:31:28,527 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 593 selfloop transitions, 86 changer transitions 5/685 dead transitions. [2024-11-07 19:31:28,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 685 transitions, 14614 flow [2024-11-07 19:31:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:31:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:31:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 85 transitions. [2024-11-07 19:31:28,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-11-07 19:31:28,528 INFO L175 Difference]: Start difference. First operand has 365 places, 656 transitions, 12888 flow. Second operand 8 states and 85 transitions. [2024-11-07 19:31:28,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 685 transitions, 14614 flow [2024-11-07 19:31:28,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 685 transitions, 14353 flow, removed 98 selfloop flow, removed 3 redundant places. [2024-11-07 19:31:28,903 INFO L231 Difference]: Finished difference. Result has 370 places, 659 transitions, 12973 flow [2024-11-07 19:31:28,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=12631, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12973, PETRI_PLACES=370, PETRI_TRANSITIONS=659} [2024-11-07 19:31:28,904 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 348 predicate places. [2024-11-07 19:31:28,904 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 659 transitions, 12973 flow [2024-11-07 19:31:28,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 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) [2024-11-07 19:31:28,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:28,904 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:28,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-07 19:31:29,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-07 19:31:29,105 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:29,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2005925891, now seen corresponding path program 41 times [2024-11-07 19:31:29,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:29,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926823764] [2024-11-07 19:31:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:29,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:29,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926823764] [2024-11-07 19:31:29,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926823764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775967091] [2024-11-07 19:31:29,240 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:29,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:29,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:29,242 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:29,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-07 19:31:29,292 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:31:29,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:29,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:29,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:29,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:29,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:29,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775967091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:29,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:29,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2024-11-07 19:31:29,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618772343] [2024-11-07 19:31:29,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:29,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:31:29,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:29,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:31:29,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:31:29,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:29,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 659 transitions, 12973 flow. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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) [2024-11-07 19:31:29,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:29,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:29,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:30,105 INFO L124 PetriNetUnfolderBase]: 1238/2047 cut-off events. [2024-11-07 19:31:30,105 INFO L125 PetriNetUnfolderBase]: For 66580/66580 co-relation queries the response was YES. [2024-11-07 19:31:30,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20909 conditions, 2047 events. 1238/2047 cut-off events. For 66580/66580 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 11047 event pairs, 34 based on Foata normal form. 1/2048 useless extension candidates. Maximal degree in co-relation 20766. Up to 1866 conditions per place. [2024-11-07 19:31:30,129 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 606 selfloop transitions, 70 changer transitions 4/681 dead transitions. [2024-11-07 19:31:30,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 681 transitions, 14523 flow [2024-11-07 19:31:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:31:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:31:30,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 80 transitions. [2024-11-07 19:31:30,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:31:30,130 INFO L175 Difference]: Start difference. First operand has 370 places, 659 transitions, 12973 flow. Second operand 8 states and 80 transitions. [2024-11-07 19:31:30,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 681 transitions, 14523 flow [2024-11-07 19:31:30,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 681 transitions, 14301 flow, removed 45 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:30,496 INFO L231 Difference]: Finished difference. Result has 373 places, 662 transitions, 13045 flow [2024-11-07 19:31:30,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=12753, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13045, PETRI_PLACES=373, PETRI_TRANSITIONS=662} [2024-11-07 19:31:30,497 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 351 predicate places. [2024-11-07 19:31:30,497 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 662 transitions, 13045 flow [2024-11-07 19:31:30,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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) [2024-11-07 19:31:30,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:30,497 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:30,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-07 19:31:30,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-07 19:31:30,700 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:30,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:30,700 INFO L85 PathProgramCache]: Analyzing trace with hash -894747047, now seen corresponding path program 42 times [2024-11-07 19:31:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:30,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213542920] [2024-11-07 19:31:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:30,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:30,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213542920] [2024-11-07 19:31:30,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213542920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:30,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144109995] [2024-11-07 19:31:30,830 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:30,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:30,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:30,832 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:30,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-07 19:31:30,891 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:31:30,891 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:30,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:30,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:30,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:31,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144109995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:31,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:31,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-11-07 19:31:31,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197308784] [2024-11-07 19:31:31,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:31,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 19:31:31,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:31,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 19:31:31,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-07 19:31:31,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:31,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 662 transitions, 13045 flow. Second operand has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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) [2024-11-07 19:31:31,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:31,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:31,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:31,973 INFO L124 PetriNetUnfolderBase]: 1416/2392 cut-off events. [2024-11-07 19:31:31,973 INFO L125 PetriNetUnfolderBase]: For 82191/82191 co-relation queries the response was YES. [2024-11-07 19:31:31,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24589 conditions, 2392 events. 1416/2392 cut-off events. For 82191/82191 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 13721 event pairs, 44 based on Foata normal form. 2/2394 useless extension candidates. Maximal degree in co-relation 24445. Up to 1964 conditions per place. [2024-11-07 19:31:31,998 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 682 selfloop transitions, 111 changer transitions 13/807 dead transitions. [2024-11-07 19:31:31,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 807 transitions, 17380 flow [2024-11-07 19:31:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 122 transitions. [2024-11-07 19:31:31,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2024-11-07 19:31:31,999 INFO L175 Difference]: Start difference. First operand has 373 places, 662 transitions, 13045 flow. Second operand 11 states and 122 transitions. [2024-11-07 19:31:31,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 807 transitions, 17380 flow [2024-11-07 19:31:32,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 807 transitions, 17119 flow, removed 67 selfloop flow, removed 6 redundant places. [2024-11-07 19:31:32,461 INFO L231 Difference]: Finished difference. Result has 385 places, 729 transitions, 14746 flow [2024-11-07 19:31:32,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=12798, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14746, PETRI_PLACES=385, PETRI_TRANSITIONS=729} [2024-11-07 19:31:32,462 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 363 predicate places. [2024-11-07 19:31:32,462 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 729 transitions, 14746 flow [2024-11-07 19:31:32,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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) [2024-11-07 19:31:32,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:32,463 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:32,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-07 19:31:32,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,48 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:32,666 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:32,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:32,667 INFO L85 PathProgramCache]: Analyzing trace with hash -972501557, now seen corresponding path program 43 times [2024-11-07 19:31:32,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:32,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001210739] [2024-11-07 19:31:32,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:32,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:32,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:32,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001210739] [2024-11-07 19:31:32,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001210739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396572693] [2024-11-07 19:31:32,779 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:32,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:32,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:32,781 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:32,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-07 19:31:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:32,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:32,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:32,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:33,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396572693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:33,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:33,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-07 19:31:33,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072597305] [2024-11-07 19:31:33,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:33,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:31:33,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:33,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:31:33,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:31:33,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:33,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 729 transitions, 14746 flow. Second operand has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 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) [2024-11-07 19:31:33,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:33,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:33,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:33,799 INFO L124 PetriNetUnfolderBase]: 1407/2365 cut-off events. [2024-11-07 19:31:33,799 INFO L125 PetriNetUnfolderBase]: For 86577/86577 co-relation queries the response was YES. [2024-11-07 19:31:33,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24833 conditions, 2365 events. 1407/2365 cut-off events. For 86577/86577 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 13437 event pairs, 41 based on Foata normal form. 2/2367 useless extension candidates. Maximal degree in co-relation 24682. Up to 1964 conditions per place. [2024-11-07 19:31:33,827 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 670 selfloop transitions, 111 changer transitions 12/794 dead transitions. [2024-11-07 19:31:33,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 794 transitions, 17460 flow [2024-11-07 19:31:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:33,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:33,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 116 transitions. [2024-11-07 19:31:33,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5272727272727272 [2024-11-07 19:31:33,828 INFO L175 Difference]: Start difference. First operand has 385 places, 729 transitions, 14746 flow. Second operand 11 states and 116 transitions. [2024-11-07 19:31:33,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 794 transitions, 17460 flow [2024-11-07 19:31:34,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 794 transitions, 16957 flow, removed 250 selfloop flow, removed 3 redundant places. [2024-11-07 19:31:34,360 INFO L231 Difference]: Finished difference. Result has 394 places, 730 transitions, 14650 flow [2024-11-07 19:31:34,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=14265, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14650, PETRI_PLACES=394, PETRI_TRANSITIONS=730} [2024-11-07 19:31:34,361 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 372 predicate places. [2024-11-07 19:31:34,361 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 730 transitions, 14650 flow [2024-11-07 19:31:34,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 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) [2024-11-07 19:31:34,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:34,362 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:34,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:34,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-07 19:31:34,566 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:34,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash -479564391, now seen corresponding path program 44 times [2024-11-07 19:31:34,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:34,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418168559] [2024-11-07 19:31:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:34,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:34,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:34,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418168559] [2024-11-07 19:31:34,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418168559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:34,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330143045] [2024-11-07 19:31:34,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:34,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:34,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:34,696 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:34,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-07 19:31:34,747 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:34,747 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:34,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:34,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:34,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:34,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330143045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:34,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:34,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2024-11-07 19:31:34,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060816396] [2024-11-07 19:31:34,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:34,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:31:34,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:31:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:31:34,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:34,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 730 transitions, 14650 flow. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 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) [2024-11-07 19:31:34,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:34,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:34,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:35,770 INFO L124 PetriNetUnfolderBase]: 1433/2418 cut-off events. [2024-11-07 19:31:35,770 INFO L125 PetriNetUnfolderBase]: For 83892/83892 co-relation queries the response was YES. [2024-11-07 19:31:35,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25113 conditions, 2418 events. 1433/2418 cut-off events. For 83892/83892 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 13839 event pairs, 40 based on Foata normal form. 1/2419 useless extension candidates. Maximal degree in co-relation 24960. Up to 2173 conditions per place. [2024-11-07 19:31:35,800 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 692 selfloop transitions, 82 changer transitions 4/779 dead transitions. [2024-11-07 19:31:35,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 779 transitions, 16931 flow [2024-11-07 19:31:35,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:31:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:31:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-07 19:31:35,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5111111111111111 [2024-11-07 19:31:35,801 INFO L175 Difference]: Start difference. First operand has 394 places, 730 transitions, 14650 flow. Second operand 9 states and 92 transitions. [2024-11-07 19:31:35,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 779 transitions, 16931 flow [2024-11-07 19:31:36,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 779 transitions, 16543 flow, removed 102 selfloop flow, removed 7 redundant places. [2024-11-07 19:31:36,312 INFO L231 Difference]: Finished difference. Result has 396 places, 750 transitions, 14992 flow [2024-11-07 19:31:36,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=14274, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14992, PETRI_PLACES=396, PETRI_TRANSITIONS=750} [2024-11-07 19:31:36,313 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 374 predicate places. [2024-11-07 19:31:36,313 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 750 transitions, 14992 flow [2024-11-07 19:31:36,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 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) [2024-11-07 19:31:36,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:36,313 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:36,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-11-07 19:31:36,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-07 19:31:36,514 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:36,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:36,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1399807207, now seen corresponding path program 45 times [2024-11-07 19:31:36,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:36,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316128398] [2024-11-07 19:31:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:36,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:36,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:36,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316128398] [2024-11-07 19:31:36,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316128398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:36,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931173919] [2024-11-07 19:31:36,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:36,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:36,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:36,666 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:36,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-07 19:31:36,714 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:31:36,715 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:36,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:36,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:36,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:36,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931173919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:36,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:36,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 18 [2024-11-07 19:31:36,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974184710] [2024-11-07 19:31:36,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:36,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:31:36,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:36,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:31:36,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:31:36,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:36,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 750 transitions, 14992 flow. Second operand has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 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) [2024-11-07 19:31:36,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:36,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:36,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:37,766 INFO L124 PetriNetUnfolderBase]: 1480/2493 cut-off events. [2024-11-07 19:31:37,766 INFO L125 PetriNetUnfolderBase]: For 84962/84962 co-relation queries the response was YES. [2024-11-07 19:31:37,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25847 conditions, 2493 events. 1480/2493 cut-off events. For 84962/84962 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 14348 event pairs, 43 based on Foata normal form. 1/2494 useless extension candidates. Maximal degree in co-relation 25692. Up to 2181 conditions per place. [2024-11-07 19:31:37,791 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 704 selfloop transitions, 98 changer transitions 6/809 dead transitions. [2024-11-07 19:31:37,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 809 transitions, 17541 flow [2024-11-07 19:31:37,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:31:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:31:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 92 transitions. [2024-11-07 19:31:37,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-07 19:31:37,792 INFO L175 Difference]: Start difference. First operand has 396 places, 750 transitions, 14992 flow. Second operand 8 states and 92 transitions. [2024-11-07 19:31:37,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 809 transitions, 17541 flow [2024-11-07 19:31:38,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 809 transitions, 17183 flow, removed 124 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:38,318 INFO L231 Difference]: Finished difference. Result has 400 places, 771 transitions, 15414 flow [2024-11-07 19:31:38,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=14644, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=750, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15414, PETRI_PLACES=400, PETRI_TRANSITIONS=771} [2024-11-07 19:31:38,319 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 378 predicate places. [2024-11-07 19:31:38,319 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 771 transitions, 15414 flow [2024-11-07 19:31:38,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 19 states have internal predecessors, (120), 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) [2024-11-07 19:31:38,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:38,319 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:38,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:38,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,51 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:38,524 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:38,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:38,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1411105481, now seen corresponding path program 46 times [2024-11-07 19:31:38,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:38,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579369413] [2024-11-07 19:31:38,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:38,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:38,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:38,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579369413] [2024-11-07 19:31:38,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579369413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:38,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620469044] [2024-11-07 19:31:38,649 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:38,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:38,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:38,651 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:38,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-07 19:31:38,699 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:38,699 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:38,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:38,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:31:38,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:38,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620469044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:38,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:38,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2024-11-07 19:31:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107777950] [2024-11-07 19:31:38,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:38,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:31:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:38,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:31:38,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:31:38,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:38,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 771 transitions, 15414 flow. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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) [2024-11-07 19:31:38,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:38,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:38,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:39,662 INFO L124 PetriNetUnfolderBase]: 1475/2482 cut-off events. [2024-11-07 19:31:39,662 INFO L125 PetriNetUnfolderBase]: For 85499/85499 co-relation queries the response was YES. [2024-11-07 19:31:39,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25523 conditions, 2482 events. 1475/2482 cut-off events. For 85499/85499 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 14262 event pairs, 41 based on Foata normal form. 1/2483 useless extension candidates. Maximal degree in co-relation 25366. Up to 2331 conditions per place. [2024-11-07 19:31:39,692 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 728 selfloop transitions, 48 changer transitions 13/790 dead transitions. [2024-11-07 19:31:39,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 790 transitions, 17180 flow [2024-11-07 19:31:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:31:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:31:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 71 transitions. [2024-11-07 19:31:39,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2024-11-07 19:31:39,694 INFO L175 Difference]: Start difference. First operand has 400 places, 771 transitions, 15414 flow. Second operand 7 states and 71 transitions. [2024-11-07 19:31:39,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 790 transitions, 17180 flow [2024-11-07 19:31:40,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 790 transitions, 16878 flow, removed 78 selfloop flow, removed 5 redundant places. [2024-11-07 19:31:40,259 INFO L231 Difference]: Finished difference. Result has 402 places, 764 transitions, 15139 flow [2024-11-07 19:31:40,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=15116, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15139, PETRI_PLACES=402, PETRI_TRANSITIONS=764} [2024-11-07 19:31:40,260 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 380 predicate places. [2024-11-07 19:31:40,260 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 764 transitions, 15139 flow [2024-11-07 19:31:40,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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) [2024-11-07 19:31:40,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:40,261 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:40,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:40,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-07 19:31:40,464 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:40,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1477561717, now seen corresponding path program 47 times [2024-11-07 19:31:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032536474] [2024-11-07 19:31:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:40,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:40,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:40,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032536474] [2024-11-07 19:31:40,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032536474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:40,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893194865] [2024-11-07 19:31:40,585 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:40,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:40,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:40,588 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:40,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-07 19:31:40,635 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:31:40,635 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:40,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:40,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:40,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893194865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:40,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 18 [2024-11-07 19:31:40,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426525090] [2024-11-07 19:31:40,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:40,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 19:31:40,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:40,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 19:31:40,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-07 19:31:40,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:40,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 764 transitions, 15139 flow. Second operand has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 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) [2024-11-07 19:31:40,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:40,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:40,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:41,652 INFO L124 PetriNetUnfolderBase]: 1461/2452 cut-off events. [2024-11-07 19:31:41,653 INFO L125 PetriNetUnfolderBase]: For 82071/82071 co-relation queries the response was YES. [2024-11-07 19:31:41,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25065 conditions, 2452 events. 1461/2452 cut-off events. For 82071/82071 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 14032 event pairs, 40 based on Foata normal form. 1/2453 useless extension candidates. Maximal degree in co-relation 24907. Up to 2181 conditions per place. [2024-11-07 19:31:41,686 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 694 selfloop transitions, 92 changer transitions 6/793 dead transitions. [2024-11-07 19:31:41,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 793 transitions, 16961 flow [2024-11-07 19:31:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:31:41,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:31:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-07 19:31:41,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5222222222222223 [2024-11-07 19:31:41,687 INFO L175 Difference]: Start difference. First operand has 402 places, 764 transitions, 15139 flow. Second operand 9 states and 94 transitions. [2024-11-07 19:31:41,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 793 transitions, 16961 flow [2024-11-07 19:31:42,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 793 transitions, 16769 flow, removed 69 selfloop flow, removed 3 redundant places. [2024-11-07 19:31:42,254 INFO L231 Difference]: Finished difference. Result has 408 places, 766 transitions, 15258 flow [2024-11-07 19:31:42,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=14953, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=764, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15258, PETRI_PLACES=408, PETRI_TRANSITIONS=766} [2024-11-07 19:31:42,255 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 386 predicate places. [2024-11-07 19:31:42,255 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 766 transitions, 15258 flow [2024-11-07 19:31:42,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 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) [2024-11-07 19:31:42,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:42,255 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:42,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-07 19:31:42,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,53 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:42,455 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:42,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:42,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1761351975, now seen corresponding path program 48 times [2024-11-07 19:31:42,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:42,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769474239] [2024-11-07 19:31:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:42,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:42,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769474239] [2024-11-07 19:31:42,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769474239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139542982] [2024-11-07 19:31:42,592 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:42,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:42,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:42,597 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:42,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-07 19:31:42,644 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:31:42,644 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:42,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:42,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:42,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139542982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:42,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:42,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-07 19:31:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154550096] [2024-11-07 19:31:42,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:42,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:31:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:31:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:31:42,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:42,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 766 transitions, 15258 flow. Second operand has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 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) [2024-11-07 19:31:42,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:42,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:42,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:43,724 INFO L124 PetriNetUnfolderBase]: 1462/2466 cut-off events. [2024-11-07 19:31:43,724 INFO L125 PetriNetUnfolderBase]: For 82721/82721 co-relation queries the response was YES. [2024-11-07 19:31:43,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25235 conditions, 2466 events. 1462/2466 cut-off events. For 82721/82721 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 14192 event pairs, 37 based on Foata normal form. 1/2467 useless extension candidates. Maximal degree in co-relation 25076. Up to 2213 conditions per place. [2024-11-07 19:31:43,751 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 716 selfloop transitions, 91 changer transitions 4/812 dead transitions. [2024-11-07 19:31:43,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 812 transitions, 17531 flow [2024-11-07 19:31:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:43,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 107 transitions. [2024-11-07 19:31:43,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4863636363636364 [2024-11-07 19:31:43,752 INFO L175 Difference]: Start difference. First operand has 408 places, 766 transitions, 15258 flow. Second operand 11 states and 107 transitions. [2024-11-07 19:31:43,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 812 transitions, 17531 flow [2024-11-07 19:31:44,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 812 transitions, 17336 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-11-07 19:31:44,218 INFO L231 Difference]: Finished difference. Result has 414 places, 781 transitions, 15752 flow [2024-11-07 19:31:44,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=15069, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15752, PETRI_PLACES=414, PETRI_TRANSITIONS=781} [2024-11-07 19:31:44,218 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 392 predicate places. [2024-11-07 19:31:44,218 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 781 transitions, 15752 flow [2024-11-07 19:31:44,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 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) [2024-11-07 19:31:44,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:44,219 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:44,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-07 19:31:44,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2024-11-07 19:31:44,419 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:44,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash 823002013, now seen corresponding path program 49 times [2024-11-07 19:31:44,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:44,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817968728] [2024-11-07 19:31:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:44,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:44,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817968728] [2024-11-07 19:31:44,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817968728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:44,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158196246] [2024-11-07 19:31:44,545 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:44,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:44,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:44,547 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:44,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-07 19:31:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:44,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 19:31:44,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:44,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:44,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158196246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:44,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:44,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-07 19:31:44,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465613260] [2024-11-07 19:31:44,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:44,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:31:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:44,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:31:44,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:31:44,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:44,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 781 transitions, 15752 flow. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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) [2024-11-07 19:31:44,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:44,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:44,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:45,745 INFO L124 PetriNetUnfolderBase]: 1461/2459 cut-off events. [2024-11-07 19:31:45,745 INFO L125 PetriNetUnfolderBase]: For 82996/82996 co-relation queries the response was YES. [2024-11-07 19:31:45,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25319 conditions, 2459 events. 1461/2459 cut-off events. For 82996/82996 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 14099 event pairs, 39 based on Foata normal form. 1/2460 useless extension candidates. Maximal degree in co-relation 25158. Up to 2140 conditions per place. [2024-11-07 19:31:45,785 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 710 selfloop transitions, 110 changer transitions 4/825 dead transitions. [2024-11-07 19:31:45,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 825 transitions, 17978 flow [2024-11-07 19:31:45,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 19:31:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-07 19:31:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 111 transitions. [2024-11-07 19:31:45,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5045454545454545 [2024-11-07 19:31:45,786 INFO L175 Difference]: Start difference. First operand has 414 places, 781 transitions, 15752 flow. Second operand 11 states and 111 transitions. [2024-11-07 19:31:45,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 825 transitions, 17978 flow [2024-11-07 19:31:46,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 825 transitions, 17607 flow, removed 117 selfloop flow, removed 7 redundant places. [2024-11-07 19:31:46,367 INFO L231 Difference]: Finished difference. Result has 419 places, 789 transitions, 15888 flow [2024-11-07 19:31:46,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=15389, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=671, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15888, PETRI_PLACES=419, PETRI_TRANSITIONS=789} [2024-11-07 19:31:46,368 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 397 predicate places. [2024-11-07 19:31:46,368 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 789 transitions, 15888 flow [2024-11-07 19:31:46,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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) [2024-11-07 19:31:46,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:46,368 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:46,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:46,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,55 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:46,569 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:46,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash -403040810, now seen corresponding path program 50 times [2024-11-07 19:31:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26597500] [2024-11-07 19:31:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:46,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:46,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:46,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26597500] [2024-11-07 19:31:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26597500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:46,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359197991] [2024-11-07 19:31:46,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:31:46,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:46,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:46,657 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:46,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-07 19:31:46,710 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:31:46,710 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:46,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:31:46,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:46,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:46,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359197991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:46,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:46,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-07 19:31:46,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884457940] [2024-11-07 19:31:46,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:46,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:31:46,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:46,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:31:46,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:31:46,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:46,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 789 transitions, 15888 flow. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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) [2024-11-07 19:31:46,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:46,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:46,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:47,798 INFO L124 PetriNetUnfolderBase]: 1930/3270 cut-off events. [2024-11-07 19:31:47,798 INFO L125 PetriNetUnfolderBase]: For 116848/116848 co-relation queries the response was YES. [2024-11-07 19:31:47,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33033 conditions, 3270 events. 1930/3270 cut-off events. For 116848/116848 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 19750 event pairs, 92 based on Foata normal form. 13/3283 useless extension candidates. Maximal degree in co-relation 32870. Up to 1058 conditions per place. [2024-11-07 19:31:47,843 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 650 selfloop transitions, 429 changer transitions 0/1080 dead transitions. [2024-11-07 19:31:47,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1080 transitions, 23521 flow [2024-11-07 19:31:47,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:31:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:31:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 126 transitions. [2024-11-07 19:31:47,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4846153846153846 [2024-11-07 19:31:47,845 INFO L175 Difference]: Start difference. First operand has 419 places, 789 transitions, 15888 flow. Second operand 13 states and 126 transitions. [2024-11-07 19:31:47,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1080 transitions, 23521 flow [2024-11-07 19:31:48,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1080 transitions, 23002 flow, removed 112 selfloop flow, removed 9 redundant places. [2024-11-07 19:31:48,568 INFO L231 Difference]: Finished difference. Result has 430 places, 944 transitions, 20365 flow [2024-11-07 19:31:48,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=15547, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=789, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20365, PETRI_PLACES=430, PETRI_TRANSITIONS=944} [2024-11-07 19:31:48,571 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 408 predicate places. [2024-11-07 19:31:48,571 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 944 transitions, 20365 flow [2024-11-07 19:31:48,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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) [2024-11-07 19:31:48,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:48,571 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:48,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:48,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-07 19:31:48,772 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:48,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:48,773 INFO L85 PathProgramCache]: Analyzing trace with hash 580662329, now seen corresponding path program 51 times [2024-11-07 19:31:48,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:48,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507901083] [2024-11-07 19:31:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:48,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:48,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:48,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507901083] [2024-11-07 19:31:48,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507901083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:48,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304452306] [2024-11-07 19:31:48,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:31:48,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:48,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:48,827 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:48,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-07 19:31:48,878 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:31:48,878 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:48,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:31:48,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:48,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:48,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304452306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:48,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:48,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-07 19:31:48,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153106518] [2024-11-07 19:31:48,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:48,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:31:48,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:48,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:31:48,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:31:48,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:48,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 944 transitions, 20365 flow. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2024-11-07 19:31:48,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:48,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:48,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:49,915 INFO L124 PetriNetUnfolderBase]: 1933/3282 cut-off events. [2024-11-07 19:31:49,915 INFO L125 PetriNetUnfolderBase]: For 124745/124745 co-relation queries the response was YES. [2024-11-07 19:31:49,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34541 conditions, 3282 events. 1933/3282 cut-off events. For 124745/124745 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 19904 event pairs, 357 based on Foata normal form. 3/3285 useless extension candidates. Maximal degree in co-relation 34371. Up to 2058 conditions per place. [2024-11-07 19:31:49,958 INFO L140 encePairwiseOnDemand]: 15/20 looper letters, 803 selfloop transitions, 245 changer transitions 12/1061 dead transitions. [2024-11-07 19:31:49,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1061 transitions, 24491 flow [2024-11-07 19:31:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:31:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:31:49,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-11-07 19:31:49,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:31:49,959 INFO L175 Difference]: Start difference. First operand has 430 places, 944 transitions, 20365 flow. Second operand 9 states and 90 transitions. [2024-11-07 19:31:49,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1061 transitions, 24491 flow [2024-11-07 19:31:50,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1061 transitions, 24080 flow, removed 115 selfloop flow, removed 3 redundant places. [2024-11-07 19:31:50,801 INFO L231 Difference]: Finished difference. Result has 438 places, 942 transitions, 20402 flow [2024-11-07 19:31:50,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=19954, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=20402, PETRI_PLACES=438, PETRI_TRANSITIONS=942} [2024-11-07 19:31:50,802 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 416 predicate places. [2024-11-07 19:31:50,802 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 942 transitions, 20402 flow [2024-11-07 19:31:50,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2024-11-07 19:31:50,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:50,802 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:50,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:51,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-07 19:31:51,003 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:51,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash -894717218, now seen corresponding path program 52 times [2024-11-07 19:31:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:51,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155696974] [2024-11-07 19:31:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:51,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:51,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155696974] [2024-11-07 19:31:51,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155696974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:51,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053901462] [2024-11-07 19:31:51,057 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:31:51,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:51,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:51,059 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:51,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-07 19:31:51,130 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:31:51,130 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:51,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:31:51,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:51,176 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:51,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:51,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053901462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:51,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:51,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-07 19:31:51,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732681718] [2024-11-07 19:31:51,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:51,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:31:51,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:51,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:31:51,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:31:51,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:51,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 942 transitions, 20402 flow. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 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) [2024-11-07 19:31:51,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:51,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:51,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:52,503 INFO L124 PetriNetUnfolderBase]: 2018/3417 cut-off events. [2024-11-07 19:31:52,503 INFO L125 PetriNetUnfolderBase]: For 134478/134478 co-relation queries the response was YES. [2024-11-07 19:31:52,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36219 conditions, 3417 events. 2018/3417 cut-off events. For 134478/134478 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 20803 event pairs, 183 based on Foata normal form. 16/3433 useless extension candidates. Maximal degree in co-relation 36046. Up to 1538 conditions per place. [2024-11-07 19:31:52,545 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 648 selfloop transitions, 382 changer transitions 0/1031 dead transitions. [2024-11-07 19:31:52,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1031 transitions, 23983 flow [2024-11-07 19:31:52,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:31:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:31:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 164 transitions. [2024-11-07 19:31:52,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43157894736842106 [2024-11-07 19:31:52,546 INFO L175 Difference]: Start difference. First operand has 438 places, 942 transitions, 20402 flow. Second operand 19 states and 164 transitions. [2024-11-07 19:31:52,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1031 transitions, 23983 flow [2024-11-07 19:31:53,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 1031 transitions, 23391 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-11-07 19:31:53,362 INFO L231 Difference]: Finished difference. Result has 453 places, 985 transitions, 21751 flow [2024-11-07 19:31:53,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=19825, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=21751, PETRI_PLACES=453, PETRI_TRANSITIONS=985} [2024-11-07 19:31:53,363 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 431 predicate places. [2024-11-07 19:31:53,364 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 985 transitions, 21751 flow [2024-11-07 19:31:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 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) [2024-11-07 19:31:53,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:53,364 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:53,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-07 19:31:53,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,58 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:53,568 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:53,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:53,569 INFO L85 PathProgramCache]: Analyzing trace with hash -953935908, now seen corresponding path program 53 times [2024-11-07 19:31:53,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:53,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014655820] [2024-11-07 19:31:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:53,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:53,622 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:53,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:53,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014655820] [2024-11-07 19:31:53,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014655820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:53,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028801995] [2024-11-07 19:31:53,623 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:31:53,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:53,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:53,625 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:53,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-07 19:31:53,684 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-07 19:31:53,684 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:53,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:31:53,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:53,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:53,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028801995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:53,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:53,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-07 19:31:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403383360] [2024-11-07 19:31:53,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:53,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:53,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:53,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:53,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:53,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 985 transitions, 21751 flow. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:31:53,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:53,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:53,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:55,110 INFO L124 PetriNetUnfolderBase]: 2149/3625 cut-off events. [2024-11-07 19:31:55,111 INFO L125 PetriNetUnfolderBase]: For 158944/158944 co-relation queries the response was YES. [2024-11-07 19:31:55,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40410 conditions, 3625 events. 2149/3625 cut-off events. For 158944/158944 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 22265 event pairs, 155 based on Foata normal form. 20/3645 useless extension candidates. Maximal degree in co-relation 40233. Up to 1268 conditions per place. [2024-11-07 19:31:55,161 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 547 selfloop transitions, 552 changer transitions 0/1100 dead transitions. [2024-11-07 19:31:55,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1100 transitions, 26961 flow [2024-11-07 19:31:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 19:31:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 19:31:55,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 209 transitions. [2024-11-07 19:31:55,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4354166666666667 [2024-11-07 19:31:55,162 INFO L175 Difference]: Start difference. First operand has 453 places, 985 transitions, 21751 flow. Second operand 24 states and 209 transitions. [2024-11-07 19:31:55,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1100 transitions, 26961 flow [2024-11-07 19:31:56,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1100 transitions, 26326 flow, removed 237 selfloop flow, removed 4 redundant places. [2024-11-07 19:31:56,148 INFO L231 Difference]: Finished difference. Result has 478 places, 1061 transitions, 25472 flow [2024-11-07 19:31:56,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=21340, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=490, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=25472, PETRI_PLACES=478, PETRI_TRANSITIONS=1061} [2024-11-07 19:31:56,149 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 456 predicate places. [2024-11-07 19:31:56,149 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 1061 transitions, 25472 flow [2024-11-07 19:31:56,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:31:56,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:56,149 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:56,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-07 19:31:56,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,59 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:56,353 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:56,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:56,353 INFO L85 PathProgramCache]: Analyzing trace with hash -546081856, now seen corresponding path program 54 times [2024-11-07 19:31:56,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:56,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961525253] [2024-11-07 19:31:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:56,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:56,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:56,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961525253] [2024-11-07 19:31:56,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961525253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:56,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488934028] [2024-11-07 19:31:56,409 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:31:56,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:56,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:56,411 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:56,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-07 19:31:56,463 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-07 19:31:56,463 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:31:56,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:31:56,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:56,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:56,539 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:56,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488934028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:56,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:56,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-07 19:31:56,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846025643] [2024-11-07 19:31:56,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:56,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:31:56,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:56,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:31:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:31:56,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:56,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 1061 transitions, 25472 flow. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-07 19:31:56,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:56,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:56,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:31:57,886 INFO L124 PetriNetUnfolderBase]: 2147/3631 cut-off events. [2024-11-07 19:31:57,887 INFO L125 PetriNetUnfolderBase]: For 160639/160639 co-relation queries the response was YES. [2024-11-07 19:31:57,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41787 conditions, 3631 events. 2147/3631 cut-off events. For 160639/160639 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 22510 event pairs, 239 based on Foata normal form. 8/3639 useless extension candidates. Maximal degree in co-relation 41604. Up to 1415 conditions per place. [2024-11-07 19:31:57,928 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 610 selfloop transitions, 479 changer transitions 4/1094 dead transitions. [2024-11-07 19:31:57,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1094 transitions, 27897 flow [2024-11-07 19:31:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:31:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:31:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 163 transitions. [2024-11-07 19:31:57,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42894736842105263 [2024-11-07 19:31:57,929 INFO L175 Difference]: Start difference. First operand has 478 places, 1061 transitions, 25472 flow. Second operand 19 states and 163 transitions. [2024-11-07 19:31:57,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1094 transitions, 27897 flow [2024-11-07 19:31:58,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1094 transitions, 25726 flow, removed 858 selfloop flow, removed 12 redundant places. [2024-11-07 19:31:58,947 INFO L231 Difference]: Finished difference. Result has 486 places, 1059 transitions, 24277 flow [2024-11-07 19:31:58,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=23302, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=478, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=24277, PETRI_PLACES=486, PETRI_TRANSITIONS=1059} [2024-11-07 19:31:58,948 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 464 predicate places. [2024-11-07 19:31:58,948 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 1059 transitions, 24277 flow [2024-11-07 19:31:58,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-07 19:31:58,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:31:58,948 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:31:58,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-07 19:31:59,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,60 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:59,153 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:31:59,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:31:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -523508115, now seen corresponding path program 55 times [2024-11-07 19:31:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:31:59,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808936413] [2024-11-07 19:31:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:31:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:31:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:59,210 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:59,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:31:59,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808936413] [2024-11-07 19:31:59,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808936413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:31:59,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96638418] [2024-11-07 19:31:59,211 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:31:59,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:31:59,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:31:59,213 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:31:59,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-07 19:31:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:31:59,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:31:59,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:31:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:59,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:31:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:31:59,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96638418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:31:59,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:31:59,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-07 19:31:59,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49188445] [2024-11-07 19:31:59,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:31:59,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:31:59,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:31:59,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:31:59,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:31:59,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:31:59,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 1059 transitions, 24277 flow. Second operand has 16 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 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) [2024-11-07 19:31:59,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:31:59,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:31:59,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:00,797 INFO L124 PetriNetUnfolderBase]: 2164/3668 cut-off events. [2024-11-07 19:32:00,798 INFO L125 PetriNetUnfolderBase]: For 129507/129507 co-relation queries the response was YES. [2024-11-07 19:32:00,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39708 conditions, 3668 events. 2164/3668 cut-off events. For 129507/129507 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 22712 event pairs, 432 based on Foata normal form. 12/3680 useless extension candidates. Maximal degree in co-relation 39526. Up to 2620 conditions per place. [2024-11-07 19:32:00,851 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 864 selfloop transitions, 300 changer transitions 11/1176 dead transitions. [2024-11-07 19:32:00,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1176 transitions, 28968 flow [2024-11-07 19:32:00,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 19:32:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 19:32:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 134 transitions. [2024-11-07 19:32:00,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44666666666666666 [2024-11-07 19:32:00,852 INFO L175 Difference]: Start difference. First operand has 486 places, 1059 transitions, 24277 flow. Second operand 15 states and 134 transitions. [2024-11-07 19:32:00,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1176 transitions, 28968 flow [2024-11-07 19:32:01,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 1176 transitions, 27849 flow, removed 52 selfloop flow, removed 17 redundant places. [2024-11-07 19:32:01,850 INFO L231 Difference]: Finished difference. Result has 486 places, 1083 transitions, 24659 flow [2024-11-07 19:32:01,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=23164, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=765, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=24659, PETRI_PLACES=486, PETRI_TRANSITIONS=1083} [2024-11-07 19:32:01,851 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 464 predicate places. [2024-11-07 19:32:01,852 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 1083 transitions, 24659 flow [2024-11-07 19:32:01,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 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) [2024-11-07 19:32:01,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:01,852 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:01,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-07 19:32:02,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,61 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:02,057 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:02,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:02,057 INFO L85 PathProgramCache]: Analyzing trace with hash -406280744, now seen corresponding path program 56 times [2024-11-07 19:32:02,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:02,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858967984] [2024-11-07 19:32:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:02,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:02,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:02,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858967984] [2024-11-07 19:32:02,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858967984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:02,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136068081] [2024-11-07 19:32:02,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:32:02,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:02,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:02,123 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:02,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-07 19:32:02,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:32:02,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:02,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:02,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:02,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:02,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136068081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:02,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:02,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-07 19:32:02,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585916984] [2024-11-07 19:32:02,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:02,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:32:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:32:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:32:02,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:02,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 1083 transitions, 24659 flow. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2024-11-07 19:32:02,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:02,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:02,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:03,704 INFO L124 PetriNetUnfolderBase]: 2227/3775 cut-off events. [2024-11-07 19:32:03,705 INFO L125 PetriNetUnfolderBase]: For 131142/131142 co-relation queries the response was YES. [2024-11-07 19:32:03,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40344 conditions, 3775 events. 2227/3775 cut-off events. For 131142/131142 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 23492 event pairs, 178 based on Foata normal form. 12/3787 useless extension candidates. Maximal degree in co-relation 40160. Up to 1537 conditions per place. [2024-11-07 19:32:03,756 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 671 selfloop transitions, 490 changer transitions 0/1162 dead transitions. [2024-11-07 19:32:03,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1162 transitions, 28015 flow [2024-11-07 19:32:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 19:32:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 19:32:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 179 transitions. [2024-11-07 19:32:03,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4261904761904762 [2024-11-07 19:32:03,757 INFO L175 Difference]: Start difference. First operand has 486 places, 1083 transitions, 24659 flow. Second operand 21 states and 179 transitions. [2024-11-07 19:32:03,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1162 transitions, 28015 flow [2024-11-07 19:32:04,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 1162 transitions, 26950 flow, removed 197 selfloop flow, removed 11 redundant places. [2024-11-07 19:32:04,731 INFO L231 Difference]: Finished difference. Result has 499 places, 1122 transitions, 25692 flow [2024-11-07 19:32:04,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=23604, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1083, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=452, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=25692, PETRI_PLACES=499, PETRI_TRANSITIONS=1122} [2024-11-07 19:32:04,732 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 477 predicate places. [2024-11-07 19:32:04,732 INFO L471 AbstractCegarLoop]: Abstraction has has 499 places, 1122 transitions, 25692 flow [2024-11-07 19:32:04,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2024-11-07 19:32:04,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:04,733 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:04,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-07 19:32:04,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-07 19:32:04,933 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:04,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash -15109819, now seen corresponding path program 57 times [2024-11-07 19:32:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:04,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149777128] [2024-11-07 19:32:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:04,988 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:04,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:04,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149777128] [2024-11-07 19:32:04,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149777128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:04,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388542852] [2024-11-07 19:32:04,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:32:04,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:04,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:04,991 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:04,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-07 19:32:05,047 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:32:05,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:05,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:05,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:05,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:05,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388542852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:05,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:05,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-07 19:32:05,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917078841] [2024-11-07 19:32:05,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:05,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:32:05,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:05,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:32:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:32:05,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:05,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 1122 transitions, 25692 flow. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-07 19:32:05,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:05,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:05,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:06,632 INFO L124 PetriNetUnfolderBase]: 2448/4074 cut-off events. [2024-11-07 19:32:06,633 INFO L125 PetriNetUnfolderBase]: For 143791/143791 co-relation queries the response was YES. [2024-11-07 19:32:06,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44536 conditions, 4074 events. 2448/4074 cut-off events. For 143791/143791 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 25137 event pairs, 461 based on Foata normal form. 24/4098 useless extension candidates. Maximal degree in co-relation 44347. Up to 2830 conditions per place. [2024-11-07 19:32:06,695 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 828 selfloop transitions, 514 changer transitions 1/1344 dead transitions. [2024-11-07 19:32:06,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 1344 transitions, 33098 flow [2024-11-07 19:32:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 19:32:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-07 19:32:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 231 transitions. [2024-11-07 19:32:06,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4125 [2024-11-07 19:32:06,696 INFO L175 Difference]: Start difference. First operand has 499 places, 1122 transitions, 25692 flow. Second operand 28 states and 231 transitions. [2024-11-07 19:32:06,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 1344 transitions, 33098 flow [2024-11-07 19:32:07,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 1344 transitions, 32671 flow, removed 92 selfloop flow, removed 11 redundant places. [2024-11-07 19:32:07,897 INFO L231 Difference]: Finished difference. Result has 521 places, 1259 transitions, 30283 flow [2024-11-07 19:32:07,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=24915, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=388, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=641, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=30283, PETRI_PLACES=521, PETRI_TRANSITIONS=1259} [2024-11-07 19:32:07,899 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 499 predicate places. [2024-11-07 19:32:07,901 INFO L471 AbstractCegarLoop]: Abstraction has has 521 places, 1259 transitions, 30283 flow [2024-11-07 19:32:07,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-07 19:32:07,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:07,902 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:07,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-11-07 19:32:08,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,63 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:08,102 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:08,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:08,103 INFO L85 PathProgramCache]: Analyzing trace with hash 140068419, now seen corresponding path program 58 times [2024-11-07 19:32:08,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:08,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910545909] [2024-11-07 19:32:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:08,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910545909] [2024-11-07 19:32:08,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910545909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749793171] [2024-11-07 19:32:08,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:32:08,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:08,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:08,154 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:08,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-07 19:32:08,210 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:32:08,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:08,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:08,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:08,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:08,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749793171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:08,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:08,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-07 19:32:08,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899179671] [2024-11-07 19:32:08,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:08,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:32:08,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:32:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:32:08,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:08,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 1259 transitions, 30283 flow. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:32:08,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:08,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:08,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:09,823 INFO L124 PetriNetUnfolderBase]: 2425/4037 cut-off events. [2024-11-07 19:32:09,824 INFO L125 PetriNetUnfolderBase]: For 145293/145293 co-relation queries the response was YES. [2024-11-07 19:32:09,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46004 conditions, 4037 events. 2425/4037 cut-off events. For 145293/145293 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 24890 event pairs, 450 based on Foata normal form. 21/4058 useless extension candidates. Maximal degree in co-relation 45809. Up to 2758 conditions per place. [2024-11-07 19:32:09,887 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 839 selfloop transitions, 478 changer transitions 10/1328 dead transitions. [2024-11-07 19:32:09,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 1328 transitions, 34189 flow [2024-11-07 19:32:09,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:32:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:32:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 166 transitions. [2024-11-07 19:32:09,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4368421052631579 [2024-11-07 19:32:09,888 INFO L175 Difference]: Start difference. First operand has 521 places, 1259 transitions, 30283 flow. Second operand 19 states and 166 transitions. [2024-11-07 19:32:09,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 1328 transitions, 34189 flow [2024-11-07 19:32:11,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 1328 transitions, 32628 flow, removed 593 selfloop flow, removed 12 redundant places. [2024-11-07 19:32:11,440 INFO L231 Difference]: Finished difference. Result has 528 places, 1243 transitions, 29396 flow [2024-11-07 19:32:11,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=28601, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=772, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=29396, PETRI_PLACES=528, PETRI_TRANSITIONS=1243} [2024-11-07 19:32:11,442 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 506 predicate places. [2024-11-07 19:32:11,442 INFO L471 AbstractCegarLoop]: Abstraction has has 528 places, 1243 transitions, 29396 flow [2024-11-07 19:32:11,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:32:11,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:11,442 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:11,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2024-11-07 19:32:11,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,64 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:11,643 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:11,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash 655626501, now seen corresponding path program 59 times [2024-11-07 19:32:11,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:11,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188926334] [2024-11-07 19:32:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188926334] [2024-11-07 19:32:11,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188926334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268774774] [2024-11-07 19:32:11,697 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:32:11,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:11,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:11,699 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:11,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-07 19:32:11,755 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:32:11,755 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:11,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:11,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:11,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:11,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268774774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:11,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:11,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-07 19:32:11,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992039092] [2024-11-07 19:32:11,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:11,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:32:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:32:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:32:11,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:11,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1243 transitions, 29396 flow. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:32:11,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:11,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:11,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:13,508 INFO L124 PetriNetUnfolderBase]: 2506/4140 cut-off events. [2024-11-07 19:32:13,508 INFO L125 PetriNetUnfolderBase]: For 149196/149196 co-relation queries the response was YES. [2024-11-07 19:32:13,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47090 conditions, 4140 events. 2506/4140 cut-off events. For 149196/149196 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 25402 event pairs, 462 based on Foata normal form. 15/4155 useless extension candidates. Maximal degree in co-relation 46894. Up to 2887 conditions per place. [2024-11-07 19:32:13,557 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 940 selfloop transitions, 411 changer transitions 19/1371 dead transitions. [2024-11-07 19:32:13,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1371 transitions, 34989 flow [2024-11-07 19:32:13,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:32:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:32:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 150 transitions. [2024-11-07 19:32:13,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2024-11-07 19:32:13,558 INFO L175 Difference]: Start difference. First operand has 528 places, 1243 transitions, 29396 flow. Second operand 17 states and 150 transitions. [2024-11-07 19:32:13,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1371 transitions, 34989 flow [2024-11-07 19:32:14,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 1371 transitions, 33777 flow, removed 95 selfloop flow, removed 17 redundant places. [2024-11-07 19:32:14,732 INFO L231 Difference]: Finished difference. Result has 529 places, 1271 transitions, 30343 flow [2024-11-07 19:32:14,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=28286, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=30343, PETRI_PLACES=529, PETRI_TRANSITIONS=1271} [2024-11-07 19:32:14,734 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 507 predicate places. [2024-11-07 19:32:14,734 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 1271 transitions, 30343 flow [2024-11-07 19:32:14,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2024-11-07 19:32:14,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:14,734 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:14,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-07 19:32:14,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,65 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:14,935 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:14,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1078993974, now seen corresponding path program 60 times [2024-11-07 19:32:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:14,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567271981] [2024-11-07 19:32:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:15,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:15,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567271981] [2024-11-07 19:32:15,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567271981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:15,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615731244] [2024-11-07 19:32:15,009 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:32:15,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:15,011 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:15,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-07 19:32:15,063 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:32:15,064 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:15,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:15,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:15,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:15,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:32:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615731244] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:15,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:15,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 15 [2024-11-07 19:32:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518940120] [2024-11-07 19:32:15,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:15,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:32:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:15,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:32:15,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:32:15,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:15,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 1271 transitions, 30343 flow. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2024-11-07 19:32:15,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:15,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:15,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:16,991 INFO L124 PetriNetUnfolderBase]: 2791/4516 cut-off events. [2024-11-07 19:32:16,991 INFO L125 PetriNetUnfolderBase]: For 166365/166365 co-relation queries the response was YES. [2024-11-07 19:32:17,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52576 conditions, 4516 events. 2791/4516 cut-off events. For 166365/166365 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 27298 event pairs, 233 based on Foata normal form. 16/4532 useless extension candidates. Maximal degree in co-relation 52378. Up to 1587 conditions per place. [2024-11-07 19:32:17,057 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 712 selfloop transitions, 756 changer transitions 6/1475 dead transitions. [2024-11-07 19:32:17,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1475 transitions, 38804 flow [2024-11-07 19:32:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 19:32:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 19:32:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 172 transitions. [2024-11-07 19:32:17,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43 [2024-11-07 19:32:17,058 INFO L175 Difference]: Start difference. First operand has 529 places, 1271 transitions, 30343 flow. Second operand 20 states and 172 transitions. [2024-11-07 19:32:17,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1475 transitions, 38804 flow [2024-11-07 19:32:18,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 1475 transitions, 38125 flow, removed 133 selfloop flow, removed 11 redundant places. [2024-11-07 19:32:18,341 INFO L231 Difference]: Finished difference. Result has 537 places, 1425 transitions, 36521 flow [2024-11-07 19:32:18,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=29651, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=601, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=36521, PETRI_PLACES=537, PETRI_TRANSITIONS=1425} [2024-11-07 19:32:18,342 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 515 predicate places. [2024-11-07 19:32:18,342 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 1425 transitions, 36521 flow [2024-11-07 19:32:18,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2024-11-07 19:32:18,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:18,342 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:18,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-07 19:32:18,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,66 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:18,542 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:18,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:18,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1394100766, now seen corresponding path program 61 times [2024-11-07 19:32:18,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:18,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414079903] [2024-11-07 19:32:18,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:18,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:18,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:18,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414079903] [2024-11-07 19:32:18,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414079903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:18,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946331143] [2024-11-07 19:32:18,619 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:32:18,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:18,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:18,624 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:18,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-07 19:32:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:18,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:18,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:18,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:18,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946331143] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:18,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:18,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-07 19:32:18,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306879303] [2024-11-07 19:32:18,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:18,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:32:18,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:18,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:32:18,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:32:18,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:18,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 1425 transitions, 36521 flow. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 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) [2024-11-07 19:32:18,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:18,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:18,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:20,953 INFO L124 PetriNetUnfolderBase]: 2852/4607 cut-off events. [2024-11-07 19:32:20,953 INFO L125 PetriNetUnfolderBase]: For 180426/180426 co-relation queries the response was YES. [2024-11-07 19:32:21,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55853 conditions, 4607 events. 2852/4607 cut-off events. For 180426/180426 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 27881 event pairs, 236 based on Foata normal form. 6/4613 useless extension candidates. Maximal degree in co-relation 55652. Up to 1611 conditions per place. [2024-11-07 19:32:21,024 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 727 selfloop transitions, 774 changer transitions 8/1510 dead transitions. [2024-11-07 19:32:21,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1510 transitions, 41784 flow [2024-11-07 19:32:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 19:32:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 19:32:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 176 transitions. [2024-11-07 19:32:21,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-07 19:32:21,028 INFO L175 Difference]: Start difference. First operand has 537 places, 1425 transitions, 36521 flow. Second operand 21 states and 176 transitions. [2024-11-07 19:32:21,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1510 transitions, 41784 flow [2024-11-07 19:32:22,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1510 transitions, 39746 flow, removed 768 selfloop flow, removed 11 redundant places. [2024-11-07 19:32:22,846 INFO L231 Difference]: Finished difference. Result has 552 places, 1460 transitions, 38284 flow [2024-11-07 19:32:22,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=35021, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=732, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=38284, PETRI_PLACES=552, PETRI_TRANSITIONS=1460} [2024-11-07 19:32:22,847 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 530 predicate places. [2024-11-07 19:32:22,847 INFO L471 AbstractCegarLoop]: Abstraction has has 552 places, 1460 transitions, 38284 flow [2024-11-07 19:32:22,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 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) [2024-11-07 19:32:22,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:22,848 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:22,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-11-07 19:32:23,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,67 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:23,052 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:23,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1639324284, now seen corresponding path program 62 times [2024-11-07 19:32:23,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:23,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320859022] [2024-11-07 19:32:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:23,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:23,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:23,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320859022] [2024-11-07 19:32:23,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320859022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:23,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731473496] [2024-11-07 19:32:23,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:32:23,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:23,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:23,112 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:23,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-07 19:32:23,162 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:32:23,162 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:23,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:23,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:23,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:23,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731473496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:23,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:23,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-07 19:32:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286304836] [2024-11-07 19:32:23,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:23,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:32:23,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:23,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:32:23,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:32:23,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:23,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 1460 transitions, 38284 flow. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2024-11-07 19:32:23,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:23,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:23,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:25,349 INFO L124 PetriNetUnfolderBase]: 3057/4969 cut-off events. [2024-11-07 19:32:25,350 INFO L125 PetriNetUnfolderBase]: For 179585/179585 co-relation queries the response was YES. [2024-11-07 19:32:25,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59509 conditions, 4969 events. 3057/4969 cut-off events. For 179585/179585 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 30594 event pairs, 172 based on Foata normal form. 10/4979 useless extension candidates. Maximal degree in co-relation 59302. Up to 2624 conditions per place. [2024-11-07 19:32:25,440 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 1037 selfloop transitions, 578 changer transitions 0/1616 dead transitions. [2024-11-07 19:32:25,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 1616 transitions, 44487 flow [2024-11-07 19:32:25,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-07 19:32:25,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-07 19:32:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 238 transitions. [2024-11-07 19:32:25,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4103448275862069 [2024-11-07 19:32:25,446 INFO L175 Difference]: Start difference. First operand has 552 places, 1460 transitions, 38284 flow. Second operand 29 states and 238 transitions. [2024-11-07 19:32:25,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 1616 transitions, 44487 flow [2024-11-07 19:32:27,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1616 transitions, 43812 flow, removed 102 selfloop flow, removed 9 redundant places. [2024-11-07 19:32:27,424 INFO L231 Difference]: Finished difference. Result has 574 places, 1559 transitions, 41584 flow [2024-11-07 19:32:27,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=37645, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=487, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=41584, PETRI_PLACES=574, PETRI_TRANSITIONS=1559} [2024-11-07 19:32:27,426 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 552 predicate places. [2024-11-07 19:32:27,426 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 1559 transitions, 41584 flow [2024-11-07 19:32:27,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 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) [2024-11-07 19:32:27,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:32:27,426 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:32:27,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-07 19:32:27,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,68 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:27,630 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:32:27,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:32:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1607814972, now seen corresponding path program 63 times [2024-11-07 19:32:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:32:27,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204387265] [2024-11-07 19:32:27,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:32:27,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:32:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:32:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:27,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:32:27,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204387265] [2024-11-07 19:32:27,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204387265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:32:27,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399141941] [2024-11-07 19:32:27,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:32:27,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:32:27,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:32:27,689 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:32:27,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-07 19:32:27,742 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:32:27,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:32:27,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:32:27,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:32:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:27,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:32:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:32:27,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399141941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:32:27,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:32:27,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 15 [2024-11-07 19:32:27,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074206355] [2024-11-07 19:32:27,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:32:27,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:32:27,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:32:27,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:32:27,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:32:27,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-11-07 19:32:27,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 1559 transitions, 41584 flow. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 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) [2024-11-07 19:32:27,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:32:27,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-11-07 19:32:27,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:32:30,444 INFO L124 PetriNetUnfolderBase]: 3150/5150 cut-off events. [2024-11-07 19:32:30,444 INFO L125 PetriNetUnfolderBase]: For 197720/197720 co-relation queries the response was YES. [2024-11-07 19:32:30,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61774 conditions, 5150 events. 3150/5150 cut-off events. For 197720/197720 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 32196 event pairs, 131 based on Foata normal form. 39/5189 useless extension candidates. Maximal degree in co-relation 61563. Up to 2197 conditions per place. [2024-11-07 19:32:30,516 INFO L140 encePairwiseOnDemand]: 14/20 looper letters, 837 selfloop transitions, 821 changer transitions 1/1660 dead transitions. [2024-11-07 19:32:30,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1660 transitions, 46469 flow [2024-11-07 19:32:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 19:32:30,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-07 19:32:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 216 transitions. [2024-11-07 19:32:30,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4153846153846154 [2024-11-07 19:32:30,517 INFO L175 Difference]: Start difference. First operand has 574 places, 1559 transitions, 41584 flow. Second operand 26 states and 216 transitions. [2024-11-07 19:32:30,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 1660 transitions, 46469 flow