./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy11.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/test-easy11.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', 'dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94'] 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/test-easy11.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 dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:39:25,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:39:25,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:39:25,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:39:25,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:39:25,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:39:25,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:39:25,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:39:25,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:39:25,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:39:25,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:39:25,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:39:25,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:39:25,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:39:25,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:39:25,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:39:25,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:39:25,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:39:25,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:39:25,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:39:25,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:39:25,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:39:25,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:39:25,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:39:25,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:39:25,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:39:25,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:39:25,165 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 -> dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 [2024-11-07 19:39:25,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:39:25,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:39:25,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:39:25,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:39:25,410 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:39:25,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-11-07 19:39:26,571 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:39:26,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:39:26,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-11-07 19:39:26,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f92b42316/745b60497d784ddab9545d08b40be159/FLAG427ab0ec1 [2024-11-07 19:39:27,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f92b42316/745b60497d784ddab9545d08b40be159 [2024-11-07 19:39:27,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:39:27,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:39:27,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:39:27,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:39:27,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:39:27,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de74139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27, skipping insertion in model container [2024-11-07 19:39:27,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:39:27,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:39:27,270 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:39:27,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:39:27,288 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:39:27,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27 WrapperNode [2024-11-07 19:39:27,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:39:27,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:39:27,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:39:27,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:39:27,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,307 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2024-11-07 19:39:27,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:39:27,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:39:27,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:39:27,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:39:27,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,320 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 19:39:27,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:39:27,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:39:27,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:39:27,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:39:27,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (1/1) ... [2024-11-07 19:39:27,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:39:27,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:27,349 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 19:39:27,354 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 19:39:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:39:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:39:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:39:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:39:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:39:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:39:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:39:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:39:27,368 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 19:39:27,423 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:39:27,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:39:27,509 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:39:27,509 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:39:27,599 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:39:27,599 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:39:27,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:27 BoogieIcfgContainer [2024-11-07 19:39:27,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:39:27,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:39:27,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:39:27,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:39:27,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:39:27" (1/3) ... [2024-11-07 19:39:27,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d63f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:39:27, skipping insertion in model container [2024-11-07 19:39:27,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:39:27" (2/3) ... [2024-11-07 19:39:27,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d63f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:39:27, skipping insertion in model container [2024-11-07 19:39:27,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:27" (3/3) ... [2024-11-07 19:39:27,612 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2024-11-07 19:39:27,624 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:39:27,624 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:39:27,624 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:39:27,673 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:39:27,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2024-11-07 19:39:27,736 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-07 19:39:27,737 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:39:27,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-11-07 19:39:27,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2024-11-07 19:39:27,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-11-07 19:39:27,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:39:27,765 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;@7872231d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:39:27,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:39:27,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:39:27,777 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-07 19:39:27,777 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:39:27,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:27,778 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:27,778 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 19:39:27,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1592784829, now seen corresponding path program 1 times [2024-11-07 19:39:27,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:27,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839146950] [2024-11-07 19:39:27,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:27,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:28,221 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 19:39:28,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:28,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839146950] [2024-11-07 19:39:28,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839146950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:28,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:28,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:28,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378303626] [2024-11-07 19:39:28,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:28,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:28,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:28,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:28,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:28,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:28,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:28,513 INFO L124 PetriNetUnfolderBase]: 111/201 cut-off events. [2024-11-07 19:39:28,513 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-07 19:39:28,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 201 events. 111/201 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 604 event pairs, 2 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 364. Up to 57 conditions per place. [2024-11-07 19:39:28,515 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 40 selfloop transitions, 10 changer transitions 10/61 dead transitions. [2024-11-07 19:39:28,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 61 transitions, 278 flow [2024-11-07 19:39:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:28,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 98 transitions. [2024-11-07 19:39:28,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2024-11-07 19:39:28,532 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 9 states and 98 transitions. [2024-11-07 19:39:28,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 61 transitions, 278 flow [2024-11-07 19:39:28,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:28,542 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 107 flow [2024-11-07 19:39:28,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=107, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2024-11-07 19:39:28,545 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-11-07 19:39:28,546 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 107 flow [2024-11-07 19:39:28,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:28,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:28,546 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:28,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:39:28,546 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 19:39:28,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:28,546 INFO L85 PathProgramCache]: Analyzing trace with hash -260763731, now seen corresponding path program 2 times [2024-11-07 19:39:28,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:28,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799717197] [2024-11-07 19:39:28,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:28,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:28,721 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 19:39:28,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:28,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799717197] [2024-11-07 19:39:28,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799717197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:28,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:28,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:28,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113242439] [2024-11-07 19:39:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:28,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:28,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:28,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:28,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:28,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:28,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 107 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:28,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:28,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:28,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:28,932 INFO L124 PetriNetUnfolderBase]: 114/208 cut-off events. [2024-11-07 19:39:28,932 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-11-07 19:39:28,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 208 events. 114/208 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 612 event pairs, 14 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 575. Up to 115 conditions per place. [2024-11-07 19:39:28,934 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 34 selfloop transitions, 14 changer transitions 10/59 dead transitions. [2024-11-07 19:39:28,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 336 flow [2024-11-07 19:39:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-07 19:39:28,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-07 19:39:28,935 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 107 flow. Second operand 9 states and 92 transitions. [2024-11-07 19:39:28,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 336 flow [2024-11-07 19:39:28,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 324 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-07 19:39:28,937 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 190 flow [2024-11-07 19:39:28,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-11-07 19:39:28,937 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2024-11-07 19:39:28,938 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 190 flow [2024-11-07 19:39:28,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:28,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:28,938 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:28,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:39:28,938 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 19:39:28,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:28,939 INFO L85 PathProgramCache]: Analyzing trace with hash 349479617, now seen corresponding path program 3 times [2024-11-07 19:39:28,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:28,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658855765] [2024-11-07 19:39:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:28,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:29,079 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 19:39:29,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:29,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658855765] [2024-11-07 19:39:29,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658855765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:29,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:29,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:29,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512477489] [2024-11-07 19:39:29,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:29,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:29,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:29,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 190 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:29,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:29,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:29,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:29,274 INFO L124 PetriNetUnfolderBase]: 119/216 cut-off events. [2024-11-07 19:39:29,274 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2024-11-07 19:39:29,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 216 events. 119/216 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 663 event pairs, 10 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 688. Up to 119 conditions per place. [2024-11-07 19:39:29,276 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 39 selfloop transitions, 18 changer transitions 9/67 dead transitions. [2024-11-07 19:39:29,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 67 transitions, 450 flow [2024-11-07 19:39:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:29,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-07 19:39:29,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-11-07 19:39:29,277 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 190 flow. Second operand 9 states and 95 transitions. [2024-11-07 19:39:29,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 67 transitions, 450 flow [2024-11-07 19:39:29,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 67 transitions, 418 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:29,280 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 257 flow [2024-11-07 19:39:29,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-11-07 19:39:29,280 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-07 19:39:29,280 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 257 flow [2024-11-07 19:39:29,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:29,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:29,280 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:29,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:39:29,281 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 19:39:29,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash 328360499, now seen corresponding path program 4 times [2024-11-07 19:39:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470163393] [2024-11-07 19:39:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:29,398 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 19:39:29,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:29,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470163393] [2024-11-07 19:39:29,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470163393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:29,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:29,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:29,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713019162] [2024-11-07 19:39:29,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:29,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:29,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:29,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:29,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:29,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:29,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 257 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:29,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:29,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:29,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:29,662 INFO L124 PetriNetUnfolderBase]: 140/247 cut-off events. [2024-11-07 19:39:29,662 INFO L125 PetriNetUnfolderBase]: For 440/440 co-relation queries the response was YES. [2024-11-07 19:39:29,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 247 events. 140/247 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 742 event pairs, 17 based on Foata normal form. 1/248 useless extension candidates. Maximal degree in co-relation 891. Up to 129 conditions per place. [2024-11-07 19:39:29,665 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 36 selfloop transitions, 26 changer transitions 9/72 dead transitions. [2024-11-07 19:39:29,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 573 flow [2024-11-07 19:39:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-07 19:39:29,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-11-07 19:39:29,666 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 257 flow. Second operand 9 states and 94 transitions. [2024-11-07 19:39:29,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 573 flow [2024-11-07 19:39:29,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 72 transitions, 511 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:29,669 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 393 flow [2024-11-07 19:39:29,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=393, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-11-07 19:39:29,670 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 28 predicate places. [2024-11-07 19:39:29,670 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 393 flow [2024-11-07 19:39:29,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:29,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:29,670 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:29,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:39:29,671 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 19:39:29,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash 401277215, now seen corresponding path program 5 times [2024-11-07 19:39:29,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:29,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990999440] [2024-11-07 19:39:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:29,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:29,783 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 19:39:29,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:29,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990999440] [2024-11-07 19:39:29,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990999440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:29,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:29,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559871028] [2024-11-07 19:39:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:29,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:29,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:29,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:29,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:29,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:29,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 393 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:29,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:29,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:29,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:29,960 INFO L124 PetriNetUnfolderBase]: 139/247 cut-off events. [2024-11-07 19:39:29,960 INFO L125 PetriNetUnfolderBase]: For 574/574 co-relation queries the response was YES. [2024-11-07 19:39:29,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 247 events. 139/247 cut-off events. For 574/574 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 777 event pairs, 11 based on Foata normal form. 1/248 useless extension candidates. Maximal degree in co-relation 974. Up to 127 conditions per place. [2024-11-07 19:39:29,962 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 44 selfloop transitions, 23 changer transitions 12/80 dead transitions. [2024-11-07 19:39:29,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 80 transitions, 688 flow [2024-11-07 19:39:29,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-07 19:39:29,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-11-07 19:39:29,963 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 393 flow. Second operand 9 states and 95 transitions. [2024-11-07 19:39:29,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 80 transitions, 688 flow [2024-11-07 19:39:29,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 80 transitions, 643 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:29,971 INFO L231 Difference]: Finished difference. Result has 58 places, 49 transitions, 389 flow [2024-11-07 19:39:29,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=389, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2024-11-07 19:39:29,976 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 32 predicate places. [2024-11-07 19:39:29,977 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 389 flow [2024-11-07 19:39:29,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:29,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:29,977 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:29,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:39:29,977 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 19:39:29,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:29,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1312130857, now seen corresponding path program 6 times [2024-11-07 19:39:29,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:29,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772811671] [2024-11-07 19:39:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:29,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:30,119 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 19:39:30,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:30,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772811671] [2024-11-07 19:39:30,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772811671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:30,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:30,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:30,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912881052] [2024-11-07 19:39:30,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:30,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:30,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:30,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:30,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:30,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 389 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:30,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:30,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:30,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:30,324 INFO L124 PetriNetUnfolderBase]: 159/275 cut-off events. [2024-11-07 19:39:30,324 INFO L125 PetriNetUnfolderBase]: For 715/715 co-relation queries the response was YES. [2024-11-07 19:39:30,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 275 events. 159/275 cut-off events. For 715/715 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 875 event pairs, 14 based on Foata normal form. 1/276 useless extension candidates. Maximal degree in co-relation 1152. Up to 137 conditions per place. [2024-11-07 19:39:30,326 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 42 selfloop transitions, 31 changer transitions 10/84 dead transitions. [2024-11-07 19:39:30,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 774 flow [2024-11-07 19:39:30,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-11-07 19:39:30,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-07 19:39:30,330 INFO L175 Difference]: Start difference. First operand has 58 places, 49 transitions, 389 flow. Second operand 9 states and 96 transitions. [2024-11-07 19:39:30,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 774 flow [2024-11-07 19:39:30,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 84 transitions, 706 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:30,334 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 554 flow [2024-11-07 19:39:30,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=554, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2024-11-07 19:39:30,335 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 34 predicate places. [2024-11-07 19:39:30,337 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 554 flow [2024-11-07 19:39:30,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:30,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:30,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:30,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:39:30,337 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 19:39:30,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1103944267, now seen corresponding path program 7 times [2024-11-07 19:39:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:30,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523269147] [2024-11-07 19:39:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:30,473 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 19:39:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:30,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523269147] [2024-11-07 19:39:30,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523269147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:30,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:30,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:30,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629314337] [2024-11-07 19:39:30,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:30,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:30,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:30,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 554 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:30,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:30,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:30,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:30,664 INFO L124 PetriNetUnfolderBase]: 167/288 cut-off events. [2024-11-07 19:39:30,664 INFO L125 PetriNetUnfolderBase]: For 996/996 co-relation queries the response was YES. [2024-11-07 19:39:30,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1329 conditions, 288 events. 167/288 cut-off events. For 996/996 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 951 event pairs, 11 based on Foata normal form. 1/289 useless extension candidates. Maximal degree in co-relation 1305. Up to 140 conditions per place. [2024-11-07 19:39:30,667 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 53 selfloop transitions, 30 changer transitions 10/94 dead transitions. [2024-11-07 19:39:30,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 94 transitions, 924 flow [2024-11-07 19:39:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:30,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-07 19:39:30,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-07 19:39:30,668 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 554 flow. Second operand 9 states and 97 transitions. [2024-11-07 19:39:30,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 94 transitions, 924 flow [2024-11-07 19:39:30,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 845 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:30,677 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 577 flow [2024-11-07 19:39:30,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=577, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2024-11-07 19:39:30,678 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 39 predicate places. [2024-11-07 19:39:30,679 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 577 flow [2024-11-07 19:39:30,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:30,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:30,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:30,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:39:30,679 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 19:39:30,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1847360659, now seen corresponding path program 8 times [2024-11-07 19:39:30,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:30,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869765856] [2024-11-07 19:39:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:30,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:30,793 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 19:39:30,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869765856] [2024-11-07 19:39:30,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869765856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:30,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:30,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15554009] [2024-11-07 19:39:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:30,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:30,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:30,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:30,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 577 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:30,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:30,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:30,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:30,996 INFO L124 PetriNetUnfolderBase]: 162/283 cut-off events. [2024-11-07 19:39:30,997 INFO L125 PetriNetUnfolderBase]: For 1032/1032 co-relation queries the response was YES. [2024-11-07 19:39:30,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 283 events. 162/283 cut-off events. For 1032/1032 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 925 event pairs, 13 based on Foata normal form. 1/284 useless extension candidates. Maximal degree in co-relation 1287. Up to 145 conditions per place. [2024-11-07 19:39:30,999 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 32 changer transitions 10/86 dead transitions. [2024-11-07 19:39:30,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 86 transitions, 868 flow [2024-11-07 19:39:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-07 19:39:31,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-07 19:39:31,000 INFO L175 Difference]: Start difference. First operand has 65 places, 61 transitions, 577 flow. Second operand 9 states and 97 transitions. [2024-11-07 19:39:31,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 86 transitions, 868 flow [2024-11-07 19:39:31,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 794 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:31,003 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 614 flow [2024-11-07 19:39:31,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=614, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2024-11-07 19:39:31,004 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 42 predicate places. [2024-11-07 19:39:31,004 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 614 flow [2024-11-07 19:39:31,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 19:39:31,005 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 19:39:31,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1260333259, now seen corresponding path program 9 times [2024-11-07 19:39:31,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015518499] [2024-11-07 19:39:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,102 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 19:39:31,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015518499] [2024-11-07 19:39:31,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015518499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571479878] [2024-11-07 19:39:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:31,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:31,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:31,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 614 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:31,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,284 INFO L124 PetriNetUnfolderBase]: 159/279 cut-off events. [2024-11-07 19:39:31,284 INFO L125 PetriNetUnfolderBase]: For 1025/1025 co-relation queries the response was YES. [2024-11-07 19:39:31,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 279 events. 159/279 cut-off events. For 1025/1025 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 917 event pairs, 15 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 1275. Up to 143 conditions per place. [2024-11-07 19:39:31,286 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 42 selfloop transitions, 30 changer transitions 11/84 dead transitions. [2024-11-07 19:39:31,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 84 transitions, 864 flow [2024-11-07 19:39:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-07 19:39:31,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-11-07 19:39:31,287 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 614 flow. Second operand 9 states and 93 transitions. [2024-11-07 19:39:31,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 84 transitions, 864 flow [2024-11-07 19:39:31,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 802 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-07 19:39:31,292 INFO L231 Difference]: Finished difference. Result has 71 places, 61 transitions, 590 flow [2024-11-07 19:39:31,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=590, PETRI_PLACES=71, PETRI_TRANSITIONS=61} [2024-11-07 19:39:31,292 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 45 predicate places. [2024-11-07 19:39:31,292 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 61 transitions, 590 flow [2024-11-07 19:39:31,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,293 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 19:39:31,293 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 19:39:31,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1795563061, now seen corresponding path program 10 times [2024-11-07 19:39:31,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629689057] [2024-11-07 19:39:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,377 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 19:39:31,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629689057] [2024-11-07 19:39:31,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629689057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866277877] [2024-11-07 19:39:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:31,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:31,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:31,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:31,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 61 transitions, 590 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:31,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,576 INFO L124 PetriNetUnfolderBase]: 156/274 cut-off events. [2024-11-07 19:39:31,576 INFO L125 PetriNetUnfolderBase]: For 1009/1009 co-relation queries the response was YES. [2024-11-07 19:39:31,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 274 events. 156/274 cut-off events. For 1009/1009 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 881 event pairs, 18 based on Foata normal form. 1/275 useless extension candidates. Maximal degree in co-relation 1240. Up to 141 conditions per place. [2024-11-07 19:39:31,578 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 42 selfloop transitions, 28 changer transitions 11/82 dead transitions. [2024-11-07 19:39:31,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 82 transitions, 838 flow [2024-11-07 19:39:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:31,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-07 19:39:31,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-11-07 19:39:31,580 INFO L175 Difference]: Start difference. First operand has 71 places, 61 transitions, 590 flow. Second operand 9 states and 94 transitions. [2024-11-07 19:39:31,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 82 transitions, 838 flow [2024-11-07 19:39:31,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 82 transitions, 772 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:31,585 INFO L231 Difference]: Finished difference. Result has 70 places, 59 transitions, 561 flow [2024-11-07 19:39:31,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=561, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2024-11-07 19:39:31,586 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 44 predicate places. [2024-11-07 19:39:31,586 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 561 flow [2024-11-07 19:39:31,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 19:39:31,586 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 19:39:31,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash 597598001, now seen corresponding path program 11 times [2024-11-07 19:39:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297923839] [2024-11-07 19:39:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,673 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 19:39:31,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297923839] [2024-11-07 19:39:31,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297923839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:31,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51525541] [2024-11-07 19:39:31,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:31,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:31,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:31,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:31,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 561 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:31,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:31,898 INFO L124 PetriNetUnfolderBase]: 164/286 cut-off events. [2024-11-07 19:39:31,898 INFO L125 PetriNetUnfolderBase]: For 1013/1013 co-relation queries the response was YES. [2024-11-07 19:39:31,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 286 events. 164/286 cut-off events. For 1013/1013 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 935 event pairs, 12 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 1265. Up to 144 conditions per place. [2024-11-07 19:39:31,900 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 45 selfloop transitions, 29 changer transitions 10/85 dead transitions. [2024-11-07 19:39:31,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 85 transitions, 838 flow [2024-11-07 19:39:31,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-07 19:39:31,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-07 19:39:31,901 INFO L175 Difference]: Start difference. First operand has 70 places, 59 transitions, 561 flow. Second operand 9 states and 97 transitions. [2024-11-07 19:39:31,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 85 transitions, 838 flow [2024-11-07 19:39:31,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 85 transitions, 776 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:31,905 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 577 flow [2024-11-07 19:39:31,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=577, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-07 19:39:31,905 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 44 predicate places. [2024-11-07 19:39:31,906 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 577 flow [2024-11-07 19:39:31,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:31,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:31,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 19:39:31,906 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 19:39:31,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:31,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1169207063, now seen corresponding path program 12 times [2024-11-07 19:39:31,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:31,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232809243] [2024-11-07 19:39:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:31,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:31,991 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 19:39:31,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:31,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232809243] [2024-11-07 19:39:31,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232809243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:31,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:31,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:31,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840205175] [2024-11-07 19:39:31,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:31,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:31,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:31,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:31,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:31,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:31,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 577 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:31,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:31,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:31,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,171 INFO L124 PetriNetUnfolderBase]: 166/291 cut-off events. [2024-11-07 19:39:32,172 INFO L125 PetriNetUnfolderBase]: For 1184/1184 co-relation queries the response was YES. [2024-11-07 19:39:32,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 291 events. 166/291 cut-off events. For 1184/1184 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 963 event pairs, 13 based on Foata normal form. 1/292 useless extension candidates. Maximal degree in co-relation 1313. Up to 153 conditions per place. [2024-11-07 19:39:32,186 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 45 selfloop transitions, 29 changer transitions 9/84 dead transitions. [2024-11-07 19:39:32,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 84 transitions, 849 flow [2024-11-07 19:39:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-07 19:39:32,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-11-07 19:39:32,187 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 577 flow. Second operand 9 states and 94 transitions. [2024-11-07 19:39:32,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 84 transitions, 849 flow [2024-11-07 19:39:32,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 779 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:32,192 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 587 flow [2024-11-07 19:39:32,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=587, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2024-11-07 19:39:32,193 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 46 predicate places. [2024-11-07 19:39:32,193 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 587 flow [2024-11-07 19:39:32,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 19:39:32,193 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 19:39:32,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1407370839, now seen corresponding path program 13 times [2024-11-07 19:39:32,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278477746] [2024-11-07 19:39:32,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,283 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 19:39:32,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278477746] [2024-11-07 19:39:32,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278477746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:32,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:32,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:32,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105106635] [2024-11-07 19:39:32,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:32,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:32,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:32,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 587 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:32,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,430 INFO L124 PetriNetUnfolderBase]: 163/289 cut-off events. [2024-11-07 19:39:32,430 INFO L125 PetriNetUnfolderBase]: For 1317/1317 co-relation queries the response was YES. [2024-11-07 19:39:32,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1325 conditions, 289 events. 163/289 cut-off events. For 1317/1317 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 943 event pairs, 18 based on Foata normal form. 1/290 useless extension candidates. Maximal degree in co-relation 1296. Up to 157 conditions per place. [2024-11-07 19:39:32,432 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 30 changer transitions 10/84 dead transitions. [2024-11-07 19:39:32,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 84 transitions, 876 flow [2024-11-07 19:39:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:32,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-11-07 19:39:32,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-11-07 19:39:32,433 INFO L175 Difference]: Start difference. First operand has 72 places, 61 transitions, 587 flow. Second operand 9 states and 94 transitions. [2024-11-07 19:39:32,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 84 transitions, 876 flow [2024-11-07 19:39:32,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 804 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:32,437 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 621 flow [2024-11-07 19:39:32,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=621, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-11-07 19:39:32,438 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 49 predicate places. [2024-11-07 19:39:32,438 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 621 flow [2024-11-07 19:39:32,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 19:39:32,439 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 19:39:32,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1637833799, now seen corresponding path program 14 times [2024-11-07 19:39:32,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872774658] [2024-11-07 19:39:32,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,519 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 19:39:32,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872774658] [2024-11-07 19:39:32,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872774658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:32,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:32,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:32,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860402507] [2024-11-07 19:39:32,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:32,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:32,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:32,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:32,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 621 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:32,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,698 INFO L124 PetriNetUnfolderBase]: 176/312 cut-off events. [2024-11-07 19:39:32,698 INFO L125 PetriNetUnfolderBase]: For 1429/1429 co-relation queries the response was YES. [2024-11-07 19:39:32,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 312 events. 176/312 cut-off events. For 1429/1429 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1061 event pairs, 20 based on Foata normal form. 1/313 useless extension candidates. Maximal degree in co-relation 1400. Up to 163 conditions per place. [2024-11-07 19:39:32,700 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 46 selfloop transitions, 31 changer transitions 10/88 dead transitions. [2024-11-07 19:39:32,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 88 transitions, 923 flow [2024-11-07 19:39:32,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2024-11-07 19:39:32,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2024-11-07 19:39:32,701 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 621 flow. Second operand 9 states and 97 transitions. [2024-11-07 19:39:32,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 88 transitions, 923 flow [2024-11-07 19:39:32,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 88 transitions, 868 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-07 19:39:32,706 INFO L231 Difference]: Finished difference. Result has 79 places, 65 transitions, 661 flow [2024-11-07 19:39:32,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=661, PETRI_PLACES=79, PETRI_TRANSITIONS=65} [2024-11-07 19:39:32,706 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 53 predicate places. [2024-11-07 19:39:32,706 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 661 flow [2024-11-07 19:39:32,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,707 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 19:39:32,707 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 19:39:32,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1459168437, now seen corresponding path program 15 times [2024-11-07 19:39:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817290113] [2024-11-07 19:39:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:32,794 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 19:39:32,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:32,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817290113] [2024-11-07 19:39:32,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817290113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:32,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:32,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:32,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636717895] [2024-11-07 19:39:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:32,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:32,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:32,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:32,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:32,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:32,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 661 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:32,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:32,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:32,972 INFO L124 PetriNetUnfolderBase]: 170/305 cut-off events. [2024-11-07 19:39:32,973 INFO L125 PetriNetUnfolderBase]: For 1470/1470 co-relation queries the response was YES. [2024-11-07 19:39:32,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 305 events. 170/305 cut-off events. For 1470/1470 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1044 event pairs, 22 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 1403. Up to 175 conditions per place. [2024-11-07 19:39:32,975 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 28 changer transitions 11/84 dead transitions. [2024-11-07 19:39:32,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 84 transitions, 921 flow [2024-11-07 19:39:32,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-07 19:39:32,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-07 19:39:32,976 INFO L175 Difference]: Start difference. First operand has 79 places, 65 transitions, 661 flow. Second operand 9 states and 92 transitions. [2024-11-07 19:39:32,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 84 transitions, 921 flow [2024-11-07 19:39:32,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 84 transitions, 849 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:32,980 INFO L231 Difference]: Finished difference. Result has 80 places, 63 transitions, 624 flow [2024-11-07 19:39:32,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=624, PETRI_PLACES=80, PETRI_TRANSITIONS=63} [2024-11-07 19:39:32,981 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-11-07 19:39:32,981 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 63 transitions, 624 flow [2024-11-07 19:39:32,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:32,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:32,981 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:32,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 19:39:32,981 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 19:39:32,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:32,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1552865645, now seen corresponding path program 16 times [2024-11-07 19:39:32,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:32,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673630999] [2024-11-07 19:39:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:32,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:33,056 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 19:39:33,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:33,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673630999] [2024-11-07 19:39:33,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673630999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:33,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:33,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:33,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950414360] [2024-11-07 19:39:33,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:33,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:33,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:33,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:33,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:33,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:33,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 63 transitions, 624 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:33,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:33,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:33,219 INFO L124 PetriNetUnfolderBase]: 179/320 cut-off events. [2024-11-07 19:39:33,219 INFO L125 PetriNetUnfolderBase]: For 1463/1463 co-relation queries the response was YES. [2024-11-07 19:39:33,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 320 events. 179/320 cut-off events. For 1463/1463 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1117 event pairs, 23 based on Foata normal form. 1/321 useless extension candidates. Maximal degree in co-relation 1421. Up to 179 conditions per place. [2024-11-07 19:39:33,221 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 53 selfloop transitions, 25 changer transitions 9/88 dead transitions. [2024-11-07 19:39:33,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 88 transitions, 953 flow [2024-11-07 19:39:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:33,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-07 19:39:33,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-11-07 19:39:33,222 INFO L175 Difference]: Start difference. First operand has 80 places, 63 transitions, 624 flow. Second operand 9 states and 93 transitions. [2024-11-07 19:39:33,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 88 transitions, 953 flow [2024-11-07 19:39:33,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 88 transitions, 889 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:33,227 INFO L231 Difference]: Finished difference. Result has 80 places, 65 transitions, 646 flow [2024-11-07 19:39:33,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=646, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2024-11-07 19:39:33,227 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-11-07 19:39:33,227 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 646 flow [2024-11-07 19:39:33,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:33,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:33,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 19:39:33,228 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 19:39:33,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:33,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1942600641, now seen corresponding path program 17 times [2024-11-07 19:39:33,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:33,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139603479] [2024-11-07 19:39:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:33,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:33,314 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 19:39:33,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:33,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139603479] [2024-11-07 19:39:33,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139603479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:33,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:33,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:33,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175061920] [2024-11-07 19:39:33,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:33,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:33,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:33,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:33,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:33,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:33,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 646 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:33,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:33,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:33,507 INFO L124 PetriNetUnfolderBase]: 171/308 cut-off events. [2024-11-07 19:39:33,507 INFO L125 PetriNetUnfolderBase]: For 1540/1540 co-relation queries the response was YES. [2024-11-07 19:39:33,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 308 events. 171/308 cut-off events. For 1540/1540 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1062 event pairs, 22 based on Foata normal form. 1/309 useless extension candidates. Maximal degree in co-relation 1407. Up to 179 conditions per place. [2024-11-07 19:39:33,509 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 46 selfloop transitions, 25 changer transitions 12/84 dead transitions. [2024-11-07 19:39:33,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 84 transitions, 909 flow [2024-11-07 19:39:33,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:33,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-07 19:39:33,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-11-07 19:39:33,510 INFO L175 Difference]: Start difference. First operand has 80 places, 65 transitions, 646 flow. Second operand 9 states and 93 transitions. [2024-11-07 19:39:33,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 84 transitions, 909 flow [2024-11-07 19:39:33,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 84 transitions, 845 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:33,516 INFO L231 Difference]: Finished difference. Result has 80 places, 62 transitions, 600 flow [2024-11-07 19:39:33,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=600, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2024-11-07 19:39:33,517 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-11-07 19:39:33,517 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 600 flow [2024-11-07 19:39:33,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:33,517 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:33,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 19:39:33,518 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 19:39:33,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:33,518 INFO L85 PathProgramCache]: Analyzing trace with hash -128971265, now seen corresponding path program 18 times [2024-11-07 19:39:33,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:33,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749072886] [2024-11-07 19:39:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:33,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:33,593 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 19:39:33,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:33,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749072886] [2024-11-07 19:39:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749072886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883928575] [2024-11-07 19:39:33,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:33,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:33,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:33,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:33,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:33,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 600 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:33,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:33,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:33,752 INFO L124 PetriNetUnfolderBase]: 175/313 cut-off events. [2024-11-07 19:39:33,752 INFO L125 PetriNetUnfolderBase]: For 1555/1555 co-relation queries the response was YES. [2024-11-07 19:39:33,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1430 conditions, 313 events. 175/313 cut-off events. For 1555/1555 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1072 event pairs, 24 based on Foata normal form. 1/314 useless extension candidates. Maximal degree in co-relation 1398. Up to 181 conditions per place. [2024-11-07 19:39:33,754 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 48 selfloop transitions, 26 changer transitions 9/84 dead transitions. [2024-11-07 19:39:33,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 84 transitions, 892 flow [2024-11-07 19:39:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:33,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-07 19:39:33,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-11-07 19:39:33,755 INFO L175 Difference]: Start difference. First operand has 80 places, 62 transitions, 600 flow. Second operand 9 states and 93 transitions. [2024-11-07 19:39:33,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 84 transitions, 892 flow [2024-11-07 19:39:33,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 84 transitions, 836 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:33,760 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 622 flow [2024-11-07 19:39:33,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=622, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-11-07 19:39:33,760 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 55 predicate places. [2024-11-07 19:39:33,761 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 622 flow [2024-11-07 19:39:33,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:33,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:33,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 19:39:33,761 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 19:39:33,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:33,761 INFO L85 PathProgramCache]: Analyzing trace with hash -312561329, now seen corresponding path program 19 times [2024-11-07 19:39:33,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:33,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370159654] [2024-11-07 19:39:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:33,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:33,833 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 19:39:33,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:33,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370159654] [2024-11-07 19:39:33,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370159654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:33,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:33,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:33,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924944746] [2024-11-07 19:39:33,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:33,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:33,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:33,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:33,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 622 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:33,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:33,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:33,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:33,996 INFO L124 PetriNetUnfolderBase]: 167/301 cut-off events. [2024-11-07 19:39:33,997 INFO L125 PetriNetUnfolderBase]: For 1661/1661 co-relation queries the response was YES. [2024-11-07 19:39:33,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1406 conditions, 301 events. 167/301 cut-off events. For 1661/1661 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1027 event pairs, 24 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 1372. Up to 177 conditions per place. [2024-11-07 19:39:33,998 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 50 selfloop transitions, 21 changer transitions 11/83 dead transitions. [2024-11-07 19:39:33,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 83 transitions, 919 flow [2024-11-07 19:39:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-11-07 19:39:33,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-07 19:39:34,000 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 622 flow. Second operand 9 states and 90 transitions. [2024-11-07 19:39:34,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 83 transitions, 919 flow [2024-11-07 19:39:34,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 83 transitions, 849 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:34,005 INFO L231 Difference]: Finished difference. Result has 81 places, 60 transitions, 564 flow [2024-11-07 19:39:34,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=564, PETRI_PLACES=81, PETRI_TRANSITIONS=60} [2024-11-07 19:39:34,005 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 55 predicate places. [2024-11-07 19:39:34,005 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 60 transitions, 564 flow [2024-11-07 19:39:34,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:34,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 19:39:34,006 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 19:39:34,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:34,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1555491421, now seen corresponding path program 20 times [2024-11-07 19:39:34,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:34,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716095488] [2024-11-07 19:39:34,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:34,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:34,075 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 19:39:34,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:34,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716095488] [2024-11-07 19:39:34,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716095488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:34,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:34,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:39:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165392952] [2024-11-07 19:39:34,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:34,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:34,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:34,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:34,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:39:34,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:34,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 60 transitions, 564 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:34,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:34,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:34,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:34,230 INFO L124 PetriNetUnfolderBase]: 172/308 cut-off events. [2024-11-07 19:39:34,231 INFO L125 PetriNetUnfolderBase]: For 1653/1653 co-relation queries the response was YES. [2024-11-07 19:39:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 308 events. 172/308 cut-off events. For 1653/1653 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1042 event pairs, 21 based on Foata normal form. 1/309 useless extension candidates. Maximal degree in co-relation 1372. Up to 117 conditions per place. [2024-11-07 19:39:34,232 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 53 selfloop transitions, 22 changer transitions 9/85 dead transitions. [2024-11-07 19:39:34,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 85 transitions, 903 flow [2024-11-07 19:39:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-11-07 19:39:34,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-07 19:39:34,233 INFO L175 Difference]: Start difference. First operand has 81 places, 60 transitions, 564 flow. Second operand 9 states and 90 transitions. [2024-11-07 19:39:34,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 85 transitions, 903 flow [2024-11-07 19:39:34,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 851 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:34,238 INFO L231 Difference]: Finished difference. Result has 81 places, 61 transitions, 584 flow [2024-11-07 19:39:34,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=584, PETRI_PLACES=81, PETRI_TRANSITIONS=61} [2024-11-07 19:39:34,239 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 55 predicate places. [2024-11-07 19:39:34,239 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 61 transitions, 584 flow [2024-11-07 19:39:34,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 19:39:34,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,239 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 19:39:34,239 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 19:39:34,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:34,239 INFO L85 PathProgramCache]: Analyzing trace with hash -715821090, now seen corresponding path program 1 times [2024-11-07 19:39:34,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:34,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141292174] [2024-11-07 19:39:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:34,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:34,261 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 19:39:34,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:34,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141292174] [2024-11-07 19:39:34,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141292174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:34,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:34,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:34,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631814349] [2024-11-07 19:39:34,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:34,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:34,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:34,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:34,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:34,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:34,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 61 transitions, 584 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:34,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:34,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:34,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:34,358 INFO L124 PetriNetUnfolderBase]: 211/411 cut-off events. [2024-11-07 19:39:34,359 INFO L125 PetriNetUnfolderBase]: For 2848/2850 co-relation queries the response was YES. [2024-11-07 19:39:34,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1980 conditions, 411 events. 211/411 cut-off events. For 2848/2850 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1776 event pairs, 26 based on Foata normal form. 14/423 useless extension candidates. Maximal degree in co-relation 1942. Up to 112 conditions per place. [2024-11-07 19:39:34,361 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 56 selfloop transitions, 28 changer transitions 4/103 dead transitions. [2024-11-07 19:39:34,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 103 transitions, 1099 flow [2024-11-07 19:39:34,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:39:34,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:39:34,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2024-11-07 19:39:34,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-07 19:39:34,362 INFO L175 Difference]: Start difference. First operand has 81 places, 61 transitions, 584 flow. Second operand 7 states and 91 transitions. [2024-11-07 19:39:34,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 103 transitions, 1099 flow [2024-11-07 19:39:34,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 103 transitions, 1011 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:34,367 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 793 flow [2024-11-07 19:39:34,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=793, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-11-07 19:39:34,367 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-11-07 19:39:34,367 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 793 flow [2024-11-07 19:39:34,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:34,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,368 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 19:39:34,368 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 19:39:34,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash -506365582, now seen corresponding path program 2 times [2024-11-07 19:39:34,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:34,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587654831] [2024-11-07 19:39:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:34,389 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 19:39:34,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:34,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587654831] [2024-11-07 19:39:34,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587654831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:34,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:34,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720250062] [2024-11-07 19:39:34,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:34,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:34,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:34,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:34,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:34,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:34,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 793 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:34,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:34,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:34,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:34,502 INFO L124 PetriNetUnfolderBase]: 238/465 cut-off events. [2024-11-07 19:39:34,503 INFO L125 PetriNetUnfolderBase]: For 4053/4055 co-relation queries the response was YES. [2024-11-07 19:39:34,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2351 conditions, 465 events. 238/465 cut-off events. For 4053/4055 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2057 event pairs, 45 based on Foata normal form. 10/471 useless extension candidates. Maximal degree in co-relation 2186. Up to 206 conditions per place. [2024-11-07 19:39:34,506 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 67 selfloop transitions, 21 changer transitions 0/103 dead transitions. [2024-11-07 19:39:34,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 1164 flow [2024-11-07 19:39:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:39:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:39:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-11-07 19:39:34,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-11-07 19:39:34,507 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 793 flow. Second operand 5 states and 77 transitions. [2024-11-07 19:39:34,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 1164 flow [2024-11-07 19:39:34,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 1069 flow, removed 35 selfloop flow, removed 3 redundant places. [2024-11-07 19:39:34,513 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 860 flow [2024-11-07 19:39:34,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=860, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-07 19:39:34,513 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 60 predicate places. [2024-11-07 19:39:34,513 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 860 flow [2024-11-07 19:39:34,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:34,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 19:39:34,514 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 19:39:34,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1846150637, now seen corresponding path program 1 times [2024-11-07 19:39:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149177071] [2024-11-07 19:39:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:34,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:34,536 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 19:39:34,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149177071] [2024-11-07 19:39:34,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149177071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773560477] [2024-11-07 19:39:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:34,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:34,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:34,541 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 19:39:34,542 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 19:39:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:34,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:39:34,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:34,636 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 19:39:34,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:34,662 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 19:39:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773560477] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:34,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 19:39:34,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-11-07 19:39:34,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86980500] [2024-11-07 19:39:34,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:34,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:34,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:39:34,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:34,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 860 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:34,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:34,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:34,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:34,781 INFO L124 PetriNetUnfolderBase]: 319/655 cut-off events. [2024-11-07 19:39:34,781 INFO L125 PetriNetUnfolderBase]: For 4546/4554 co-relation queries the response was YES. [2024-11-07 19:39:34,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3129 conditions, 655 events. 319/655 cut-off events. For 4546/4554 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3376 event pairs, 20 based on Foata normal form. 17/668 useless extension candidates. Maximal degree in co-relation 2681. Up to 297 conditions per place. [2024-11-07 19:39:34,786 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 62 selfloop transitions, 34 changer transitions 0/111 dead transitions. [2024-11-07 19:39:34,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 1289 flow [2024-11-07 19:39:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:39:34,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:39:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-11-07 19:39:34,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-07 19:39:34,787 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 860 flow. Second operand 5 states and 76 transitions. [2024-11-07 19:39:34,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 1289 flow [2024-11-07 19:39:34,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 111 transitions, 1218 flow, removed 27 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:34,796 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 1040 flow [2024-11-07 19:39:34,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1040, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-11-07 19:39:34,796 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 66 predicate places. [2024-11-07 19:39:34,796 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 1040 flow [2024-11-07 19:39:34,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:34,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:34,797 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:34,810 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 19:39:35,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-07 19:39:35,001 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 19:39:35,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2120643900, now seen corresponding path program 3 times [2024-11-07 19:39:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56901846] [2024-11-07 19:39:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,027 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 19:39:35,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56901846] [2024-11-07 19:39:35,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56901846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490962437] [2024-11-07 19:39:35,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 1040 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,149 INFO L124 PetriNetUnfolderBase]: 311/648 cut-off events. [2024-11-07 19:39:35,149 INFO L125 PetriNetUnfolderBase]: For 4805/4814 co-relation queries the response was YES. [2024-11-07 19:39:35,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3166 conditions, 648 events. 311/648 cut-off events. For 4805/4814 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3346 event pairs, 37 based on Foata normal form. 16/664 useless extension candidates. Maximal degree in co-relation 2995. Up to 154 conditions per place. [2024-11-07 19:39:35,153 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 72 selfloop transitions, 30 changer transitions 4/121 dead transitions. [2024-11-07 19:39:35,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 121 transitions, 1462 flow [2024-11-07 19:39:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:39:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:39:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2024-11-07 19:39:35,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5572916666666666 [2024-11-07 19:39:35,154 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 1040 flow. Second operand 8 states and 107 transitions. [2024-11-07 19:39:35,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 121 transitions, 1462 flow [2024-11-07 19:39:35,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 121 transitions, 1436 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:35,164 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 1081 flow [2024-11-07 19:39:35,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1081, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2024-11-07 19:39:35,165 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2024-11-07 19:39:35,165 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 1081 flow [2024-11-07 19:39:35,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,165 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 19:39:35,165 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 19:39:35,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash -258890587, now seen corresponding path program 2 times [2024-11-07 19:39:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664624783] [2024-11-07 19:39:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,188 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 19:39:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664624783] [2024-11-07 19:39:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664624783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200394760] [2024-11-07 19:39:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 1081 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,313 INFO L124 PetriNetUnfolderBase]: 274/572 cut-off events. [2024-11-07 19:39:35,314 INFO L125 PetriNetUnfolderBase]: For 4570/4578 co-relation queries the response was YES. [2024-11-07 19:39:35,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2932 conditions, 572 events. 274/572 cut-off events. For 4570/4578 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2874 event pairs, 19 based on Foata normal form. 20/588 useless extension candidates. Maximal degree in co-relation 2773. Up to 170 conditions per place. [2024-11-07 19:39:35,318 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 64 selfloop transitions, 24 changer transitions 3/105 dead transitions. [2024-11-07 19:39:35,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 1396 flow [2024-11-07 19:39:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2024-11-07 19:39:35,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-07 19:39:35,319 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 1081 flow. Second operand 6 states and 80 transitions. [2024-11-07 19:39:35,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 1396 flow [2024-11-07 19:39:35,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 105 transitions, 1340 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-07 19:39:35,329 INFO L231 Difference]: Finished difference. Result has 102 places, 79 transitions, 987 flow [2024-11-07 19:39:35,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=987, PETRI_PLACES=102, PETRI_TRANSITIONS=79} [2024-11-07 19:39:35,329 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-11-07 19:39:35,329 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 79 transitions, 987 flow [2024-11-07 19:39:35,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,330 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 19:39:35,330 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 19:39:35,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1676173084, now seen corresponding path program 4 times [2024-11-07 19:39:35,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171405881] [2024-11-07 19:39:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,353 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 19:39:35,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171405881] [2024-11-07 19:39:35,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171405881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102281933] [2024-11-07 19:39:35,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 79 transitions, 987 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,452 INFO L124 PetriNetUnfolderBase]: 242/497 cut-off events. [2024-11-07 19:39:35,452 INFO L125 PetriNetUnfolderBase]: For 4534/4540 co-relation queries the response was YES. [2024-11-07 19:39:35,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 497 events. 242/497 cut-off events. For 4534/4540 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2313 event pairs, 34 based on Foata normal form. 14/509 useless extension candidates. Maximal degree in co-relation 2424. Up to 271 conditions per place. [2024-11-07 19:39:35,458 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 58 selfloop transitions, 21 changer transitions 1/94 dead transitions. [2024-11-07 19:39:35,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 94 transitions, 1192 flow [2024-11-07 19:39:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:39:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:39:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2024-11-07 19:39:35,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-07 19:39:35,459 INFO L175 Difference]: Start difference. First operand has 102 places, 79 transitions, 987 flow. Second operand 5 states and 70 transitions. [2024-11-07 19:39:35,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 94 transitions, 1192 flow [2024-11-07 19:39:35,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 1140 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:35,467 INFO L231 Difference]: Finished difference. Result has 99 places, 77 transitions, 927 flow [2024-11-07 19:39:35,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=927, PETRI_PLACES=99, PETRI_TRANSITIONS=77} [2024-11-07 19:39:35,467 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2024-11-07 19:39:35,467 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 77 transitions, 927 flow [2024-11-07 19:39:35,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 19:39:35,468 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 19:39:35,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,468 INFO L85 PathProgramCache]: Analyzing trace with hash 176730273, now seen corresponding path program 3 times [2024-11-07 19:39:35,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458819889] [2024-11-07 19:39:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,490 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 19:39:35,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458819889] [2024-11-07 19:39:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458819889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980402386] [2024-11-07 19:39:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 77 transitions, 927 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,595 INFO L124 PetriNetUnfolderBase]: 313/620 cut-off events. [2024-11-07 19:39:35,595 INFO L125 PetriNetUnfolderBase]: For 5378/5380 co-relation queries the response was YES. [2024-11-07 19:39:35,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3232 conditions, 620 events. 313/620 cut-off events. For 5378/5380 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3066 event pairs, 92 based on Foata normal form. 11/620 useless extension candidates. Maximal degree in co-relation 3066. Up to 373 conditions per place. [2024-11-07 19:39:35,601 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 68 selfloop transitions, 31 changer transitions 0/113 dead transitions. [2024-11-07 19:39:35,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 113 transitions, 1493 flow [2024-11-07 19:39:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:39:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:39:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-11-07 19:39:35,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-07 19:39:35,602 INFO L175 Difference]: Start difference. First operand has 99 places, 77 transitions, 927 flow. Second operand 5 states and 73 transitions. [2024-11-07 19:39:35,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 113 transitions, 1493 flow [2024-11-07 19:39:35,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 113 transitions, 1410 flow, removed 15 selfloop flow, removed 9 redundant places. [2024-11-07 19:39:35,611 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 1212 flow [2024-11-07 19:39:35,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1212, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-11-07 19:39:35,612 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 71 predicate places. [2024-11-07 19:39:35,612 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 1212 flow [2024-11-07 19:39:35,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 19:39:35,612 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 19:39:35,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,613 INFO L85 PathProgramCache]: Analyzing trace with hash 877689928, now seen corresponding path program 5 times [2024-11-07 19:39:35,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234189282] [2024-11-07 19:39:35,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,633 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 19:39:35,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234189282] [2024-11-07 19:39:35,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234189282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511981303] [2024-11-07 19:39:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 1212 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,745 INFO L124 PetriNetUnfolderBase]: 276/556 cut-off events. [2024-11-07 19:39:35,746 INFO L125 PetriNetUnfolderBase]: For 4708/4710 co-relation queries the response was YES. [2024-11-07 19:39:35,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3012 conditions, 556 events. 276/556 cut-off events. For 4708/4710 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2650 event pairs, 15 based on Foata normal form. 16/570 useless extension candidates. Maximal degree in co-relation 2150. Up to 186 conditions per place. [2024-11-07 19:39:35,749 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 68 selfloop transitions, 23 changer transitions 2/106 dead transitions. [2024-11-07 19:39:35,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 106 transitions, 1449 flow [2024-11-07 19:39:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:39:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:39:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2024-11-07 19:39:35,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-07 19:39:35,750 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 1212 flow. Second operand 6 states and 78 transitions. [2024-11-07 19:39:35,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 106 transitions, 1449 flow [2024-11-07 19:39:35,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 106 transitions, 1410 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-07 19:39:35,758 INFO L231 Difference]: Finished difference. Result has 100 places, 84 transitions, 1100 flow [2024-11-07 19:39:35,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1100, PETRI_PLACES=100, PETRI_TRANSITIONS=84} [2024-11-07 19:39:35,759 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 74 predicate places. [2024-11-07 19:39:35,759 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 84 transitions, 1100 flow [2024-11-07 19:39:35,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,759 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 19:39:35,759 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 19:39:35,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash -79016769, now seen corresponding path program 4 times [2024-11-07 19:39:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731748476] [2024-11-07 19:39:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,782 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 19:39:35,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731748476] [2024-11-07 19:39:35,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731748476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215414258] [2024-11-07 19:39:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 84 transitions, 1100 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:35,886 INFO L124 PetriNetUnfolderBase]: 258/522 cut-off events. [2024-11-07 19:39:35,886 INFO L125 PetriNetUnfolderBase]: For 4751/4755 co-relation queries the response was YES. [2024-11-07 19:39:35,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2847 conditions, 522 events. 258/522 cut-off events. For 4751/4755 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2483 event pairs, 49 based on Foata normal form. 12/528 useless extension candidates. Maximal degree in co-relation 2441. Up to 163 conditions per place. [2024-11-07 19:39:35,890 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 61 selfloop transitions, 28 changer transitions 3/105 dead transitions. [2024-11-07 19:39:35,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 105 transitions, 1426 flow [2024-11-07 19:39:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:39:35,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:39:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-11-07 19:39:35,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-11-07 19:39:35,891 INFO L175 Difference]: Start difference. First operand has 100 places, 84 transitions, 1100 flow. Second operand 7 states and 87 transitions. [2024-11-07 19:39:35,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 105 transitions, 1426 flow [2024-11-07 19:39:35,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 1350 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:35,898 INFO L231 Difference]: Finished difference. Result has 98 places, 83 transitions, 1082 flow [2024-11-07 19:39:35,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1082, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2024-11-07 19:39:35,899 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 72 predicate places. [2024-11-07 19:39:35,899 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 83 transitions, 1082 flow [2024-11-07 19:39:35,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:35,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:35,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 19:39:35,900 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 19:39:35,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:35,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1869310573, now seen corresponding path program 5 times [2024-11-07 19:39:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:35,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403929635] [2024-11-07 19:39:35,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:35,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:35,934 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 19:39:35,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:35,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403929635] [2024-11-07 19:39:35,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403929635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:35,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:39:35,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:39:35,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227267750] [2024-11-07 19:39:35,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:35,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:39:35,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:35,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:39:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:39:35,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:39:35,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 83 transitions, 1082 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:35,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:35,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:39:35,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:36,108 INFO L124 PetriNetUnfolderBase]: 225/443 cut-off events. [2024-11-07 19:39:36,108 INFO L125 PetriNetUnfolderBase]: For 4260/4262 co-relation queries the response was YES. [2024-11-07 19:39:36,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 443 events. 225/443 cut-off events. For 4260/4262 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1938 event pairs, 40 based on Foata normal form. 6/443 useless extension candidates. Maximal degree in co-relation 1976. Up to 146 conditions per place. [2024-11-07 19:39:36,111 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 61 selfloop transitions, 27 changer transitions 2/103 dead transitions. [2024-11-07 19:39:36,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 103 transitions, 1349 flow [2024-11-07 19:39:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:39:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:39:36,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2024-11-07 19:39:36,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-11-07 19:39:36,113 INFO L175 Difference]: Start difference. First operand has 98 places, 83 transitions, 1082 flow. Second operand 8 states and 99 transitions. [2024-11-07 19:39:36,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 103 transitions, 1349 flow [2024-11-07 19:39:36,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 103 transitions, 1298 flow, removed 16 selfloop flow, removed 2 redundant places. [2024-11-07 19:39:36,120 INFO L231 Difference]: Finished difference. Result has 102 places, 78 transitions, 1013 flow [2024-11-07 19:39:36,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1013, PETRI_PLACES=102, PETRI_TRANSITIONS=78} [2024-11-07 19:39:36,121 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-11-07 19:39:36,121 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 78 transitions, 1013 flow [2024-11-07 19:39:36,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 19:39:36,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:36,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:36,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 19:39:36,122 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 19:39:36,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1356148850, now seen corresponding path program 1 times [2024-11-07 19:39:36,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:36,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339549590] [2024-11-07 19:39:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:36,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:36,230 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 19:39:36,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339549590] [2024-11-07 19:39:36,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339549590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714135320] [2024-11-07 19:39:36,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:36,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:36,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:36,233 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 19:39:36,241 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 19:39:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:36,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:36,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:36,408 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 19:39:36,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:36,705 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 19:39:36,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714135320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:36,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:36,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:36,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771681470] [2024-11-07 19:39:36,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:36,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:36,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:36,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:36,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 78 transitions, 1013 flow. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 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 19:39:36,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:36,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:36,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:37,626 INFO L124 PetriNetUnfolderBase]: 677/1270 cut-off events. [2024-11-07 19:39:37,626 INFO L125 PetriNetUnfolderBase]: For 9595/9595 co-relation queries the response was YES. [2024-11-07 19:39:37,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6314 conditions, 1270 events. 677/1270 cut-off events. For 9595/9595 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6784 event pairs, 35 based on Foata normal form. 2/1272 useless extension candidates. Maximal degree in co-relation 5740. Up to 236 conditions per place. [2024-11-07 19:39:37,633 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 128 selfloop transitions, 85 changer transitions 64/278 dead transitions. [2024-11-07 19:39:37,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 278 transitions, 3312 flow [2024-11-07 19:39:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 19:39:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-07 19:39:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 346 transitions. [2024-11-07 19:39:37,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40046296296296297 [2024-11-07 19:39:37,635 INFO L175 Difference]: Start difference. First operand has 102 places, 78 transitions, 1013 flow. Second operand 36 states and 346 transitions. [2024-11-07 19:39:37,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 278 transitions, 3312 flow [2024-11-07 19:39:37,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 278 transitions, 3099 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:37,646 INFO L231 Difference]: Finished difference. Result has 149 places, 126 transitions, 1908 flow [2024-11-07 19:39:37,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1908, PETRI_PLACES=149, PETRI_TRANSITIONS=126} [2024-11-07 19:39:37,646 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 123 predicate places. [2024-11-07 19:39:37,646 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 126 transitions, 1908 flow [2024-11-07 19:39:37,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 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 19:39:37,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:37,647 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:37,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:37,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:37,847 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 19:39:37,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:37,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2019769818, now seen corresponding path program 2 times [2024-11-07 19:39:37,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:37,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031101747] [2024-11-07 19:39:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:37,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:37,929 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 19:39:37,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:37,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031101747] [2024-11-07 19:39:37,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031101747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:37,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140082975] [2024-11-07 19:39:37,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:37,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:37,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:37,932 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 19:39:37,933 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 19:39:37,970 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:37,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:37,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:37,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:38,066 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 19:39:38,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:38,276 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 19:39:38,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140082975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:38,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:38,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:38,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387025527] [2024-11-07 19:39:38,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:38,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:38,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:38,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:38,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:38,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 126 transitions, 1908 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:38,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:38,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:38,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:38,772 INFO L124 PetriNetUnfolderBase]: 749/1478 cut-off events. [2024-11-07 19:39:38,773 INFO L125 PetriNetUnfolderBase]: For 11915/11915 co-relation queries the response was YES. [2024-11-07 19:39:38,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7646 conditions, 1478 events. 749/1478 cut-off events. For 11915/11915 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8654 event pairs, 98 based on Foata normal form. 3/1481 useless extension candidates. Maximal degree in co-relation 7549. Up to 612 conditions per place. [2024-11-07 19:39:38,784 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 101 selfloop transitions, 97 changer transitions 16/215 dead transitions. [2024-11-07 19:39:38,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 215 transitions, 3281 flow [2024-11-07 19:39:38,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:39:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:39:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 142 transitions. [2024-11-07 19:39:38,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-11-07 19:39:38,786 INFO L175 Difference]: Start difference. First operand has 149 places, 126 transitions, 1908 flow. Second operand 14 states and 142 transitions. [2024-11-07 19:39:38,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 215 transitions, 3281 flow [2024-11-07 19:39:38,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 215 transitions, 2753 flow, removed 182 selfloop flow, removed 17 redundant places. [2024-11-07 19:39:38,811 INFO L231 Difference]: Finished difference. Result has 139 places, 158 transitions, 2199 flow [2024-11-07 19:39:38,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1555, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2199, PETRI_PLACES=139, PETRI_TRANSITIONS=158} [2024-11-07 19:39:38,812 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 113 predicate places. [2024-11-07 19:39:38,812 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 158 transitions, 2199 flow [2024-11-07 19:39:38,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:38,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:38,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:38,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:39,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:39,014 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 19:39:39,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1031593264, now seen corresponding path program 3 times [2024-11-07 19:39:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:39,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416867341] [2024-11-07 19:39:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:39,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:39,134 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 19:39:39,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:39,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416867341] [2024-11-07 19:39:39,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416867341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:39,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218459749] [2024-11-07 19:39:39,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:39,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:39,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:39,139 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 19:39:39,140 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 19:39:39,173 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:39:39,173 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:39,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:39,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:39,288 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 19:39:39,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:39,471 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 19:39:39,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218459749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:39,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:39,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:39,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266440594] [2024-11-07 19:39:39,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:39,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:39,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:39,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:39,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:39,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:39,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 158 transitions, 2199 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:39,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:39,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:39,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:40,044 INFO L124 PetriNetUnfolderBase]: 892/1784 cut-off events. [2024-11-07 19:39:40,045 INFO L125 PetriNetUnfolderBase]: For 12679/12679 co-relation queries the response was YES. [2024-11-07 19:39:40,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8670 conditions, 1784 events. 892/1784 cut-off events. For 12679/12679 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 11184 event pairs, 108 based on Foata normal form. 4/1788 useless extension candidates. Maximal degree in co-relation 8527. Up to 584 conditions per place. [2024-11-07 19:39:40,054 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 85 selfloop transitions, 151 changer transitions 12/249 dead transitions. [2024-11-07 19:39:40,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 249 transitions, 3674 flow [2024-11-07 19:39:40,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:39:40,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:39:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 164 transitions. [2024-11-07 19:39:40,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2024-11-07 19:39:40,055 INFO L175 Difference]: Start difference. First operand has 139 places, 158 transitions, 2199 flow. Second operand 17 states and 164 transitions. [2024-11-07 19:39:40,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 249 transitions, 3674 flow [2024-11-07 19:39:40,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 249 transitions, 3569 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:40,085 INFO L231 Difference]: Finished difference. Result has 154 places, 202 transitions, 3249 flow [2024-11-07 19:39:40,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3249, PETRI_PLACES=154, PETRI_TRANSITIONS=202} [2024-11-07 19:39:40,086 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 128 predicate places. [2024-11-07 19:39:40,086 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 202 transitions, 3249 flow [2024-11-07 19:39:40,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:40,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:40,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:40,098 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 19:39:40,287 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,SelfDestructingSolverStorable32 [2024-11-07 19:39:40,287 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 19:39:40,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:40,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2110653492, now seen corresponding path program 4 times [2024-11-07 19:39:40,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:40,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433610009] [2024-11-07 19:39:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:40,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:40,388 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 19:39:40,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:40,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433610009] [2024-11-07 19:39:40,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433610009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:40,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214184929] [2024-11-07 19:39:40,388 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:40,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:40,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:40,390 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 19:39:40,391 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 19:39:40,427 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:40,427 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:40,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:40,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:40,530 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 19:39:40,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:40,689 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 19:39:40,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214184929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:40,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:40,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:40,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857431717] [2024-11-07 19:39:40,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:40,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:40,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:40,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:40,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 202 transitions, 3249 flow. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 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 19:39:40,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:40,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:40,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:41,211 INFO L124 PetriNetUnfolderBase]: 870/1736 cut-off events. [2024-11-07 19:39:41,212 INFO L125 PetriNetUnfolderBase]: For 15714/15714 co-relation queries the response was YES. [2024-11-07 19:39:41,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9472 conditions, 1736 events. 870/1736 cut-off events. For 15714/15714 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 10758 event pairs, 97 based on Foata normal form. 4/1740 useless extension candidates. Maximal degree in co-relation 9333. Up to 590 conditions per place. [2024-11-07 19:39:41,221 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 87 selfloop transitions, 144 changer transitions 17/249 dead transitions. [2024-11-07 19:39:41,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 249 transitions, 4071 flow [2024-11-07 19:39:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:39:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:39:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 164 transitions. [2024-11-07 19:39:41,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2024-11-07 19:39:41,222 INFO L175 Difference]: Start difference. First operand has 154 places, 202 transitions, 3249 flow. Second operand 17 states and 164 transitions. [2024-11-07 19:39:41,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 249 transitions, 4071 flow [2024-11-07 19:39:41,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 249 transitions, 3876 flow, removed 78 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:41,268 INFO L231 Difference]: Finished difference. Result has 167 places, 199 transitions, 3293 flow [2024-11-07 19:39:41,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3056, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3293, PETRI_PLACES=167, PETRI_TRANSITIONS=199} [2024-11-07 19:39:41,268 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 141 predicate places. [2024-11-07 19:39:41,268 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 199 transitions, 3293 flow [2024-11-07 19:39:41,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 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 19:39:41,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:41,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:41,282 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 19:39:41,472 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,SelfDestructingSolverStorable33 [2024-11-07 19:39:41,473 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 19:39:41,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:41,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1770968316, now seen corresponding path program 5 times [2024-11-07 19:39:41,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:41,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409349978] [2024-11-07 19:39:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:41,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:41,563 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 19:39:41,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:41,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409349978] [2024-11-07 19:39:41,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409349978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:41,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976058798] [2024-11-07 19:39:41,563 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:41,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:41,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:41,565 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 19:39:41,566 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 19:39:41,599 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:41,599 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:41,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:39:41,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:41,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:41,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976058798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:41,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:41,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-07 19:39:41,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900772000] [2024-11-07 19:39:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:41,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:41,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:41,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:39:41,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:41,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 199 transitions, 3293 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 19:39:41,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:41,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:41,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:41,872 INFO L124 PetriNetUnfolderBase]: 798/1576 cut-off events. [2024-11-07 19:39:41,872 INFO L125 PetriNetUnfolderBase]: For 15791/15791 co-relation queries the response was YES. [2024-11-07 19:39:41,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9142 conditions, 1576 events. 798/1576 cut-off events. For 15791/15791 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9337 event pairs, 163 based on Foata normal form. 2/1578 useless extension candidates. Maximal degree in co-relation 9009. Up to 988 conditions per place. [2024-11-07 19:39:41,881 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 123 selfloop transitions, 61 changer transitions 45/230 dead transitions. [2024-11-07 19:39:41,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 230 transitions, 4088 flow [2024-11-07 19:39:41,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-07 19:39:41,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-07 19:39:41,885 INFO L175 Difference]: Start difference. First operand has 167 places, 199 transitions, 3293 flow. Second operand 9 states and 92 transitions. [2024-11-07 19:39:41,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 230 transitions, 4088 flow [2024-11-07 19:39:41,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 230 transitions, 3834 flow, removed 6 selfloop flow, removed 14 redundant places. [2024-11-07 19:39:41,929 INFO L231 Difference]: Finished difference. Result has 161 places, 172 transitions, 2691 flow [2024-11-07 19:39:41,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3055, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2691, PETRI_PLACES=161, PETRI_TRANSITIONS=172} [2024-11-07 19:39:41,930 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 135 predicate places. [2024-11-07 19:39:41,930 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 172 transitions, 2691 flow [2024-11-07 19:39:41,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 19:39:41,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:41,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:41,942 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 19:39:42,131 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,SelfDestructingSolverStorable34 [2024-11-07 19:39:42,131 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 19:39:42,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:42,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1720197622, now seen corresponding path program 6 times [2024-11-07 19:39:42,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:42,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544902446] [2024-11-07 19:39:42,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:42,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:42,222 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 19:39:42,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:42,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544902446] [2024-11-07 19:39:42,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544902446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:42,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548756422] [2024-11-07 19:39:42,223 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:42,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:42,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:42,232 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 19:39:42,234 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 19:39:42,269 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:39:42,269 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:42,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:39:42,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:42,368 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 19:39:42,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:42,495 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 19:39:42,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548756422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:42,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:42,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-11-07 19:39:42,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496214558] [2024-11-07 19:39:42,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:42,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 19:39:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:42,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 19:39:42,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-07 19:39:42,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:42,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 172 transitions, 2691 flow. Second operand has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:42,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:42,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:42,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:43,418 INFO L124 PetriNetUnfolderBase]: 970/1900 cut-off events. [2024-11-07 19:39:43,418 INFO L125 PetriNetUnfolderBase]: For 17518/17518 co-relation queries the response was YES. [2024-11-07 19:39:43,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10333 conditions, 1900 events. 970/1900 cut-off events. For 17518/17518 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 11798 event pairs, 117 based on Foata normal form. 15/1915 useless extension candidates. Maximal degree in co-relation 10199. Up to 917 conditions per place. [2024-11-07 19:39:43,428 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 118 selfloop transitions, 163 changer transitions 37/319 dead transitions. [2024-11-07 19:39:43,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 319 transitions, 5176 flow [2024-11-07 19:39:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-07 19:39:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-07 19:39:43,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 280 transitions. [2024-11-07 19:39:43,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3645833333333333 [2024-11-07 19:39:43,432 INFO L175 Difference]: Start difference. First operand has 161 places, 172 transitions, 2691 flow. Second operand 32 states and 280 transitions. [2024-11-07 19:39:43,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 319 transitions, 5176 flow [2024-11-07 19:39:43,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 319 transitions, 4633 flow, removed 53 selfloop flow, removed 17 redundant places. [2024-11-07 19:39:43,470 INFO L231 Difference]: Finished difference. Result has 175 places, 232 transitions, 3803 flow [2024-11-07 19:39:43,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2338, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=3803, PETRI_PLACES=175, PETRI_TRANSITIONS=232} [2024-11-07 19:39:43,471 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 149 predicate places. [2024-11-07 19:39:43,471 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 232 transitions, 3803 flow [2024-11-07 19:39:43,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:43,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:43,471 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:43,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 19:39:43,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:43,672 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 19:39:43,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:43,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1365119996, now seen corresponding path program 7 times [2024-11-07 19:39:43,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:43,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205560347] [2024-11-07 19:39:43,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:43,759 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 19:39:43,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:43,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205560347] [2024-11-07 19:39:43,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205560347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:43,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614319859] [2024-11-07 19:39:43,760 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:43,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:43,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:43,762 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 19:39:43,763 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 19:39:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:43,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:43,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:43,907 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 19:39:43,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:44,103 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 19:39:44,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614319859] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:44,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:44,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645458566] [2024-11-07 19:39:44,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:44,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:44,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:44,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:44,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:44,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 232 transitions, 3803 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 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 19:39:44,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:44,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:44,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:44,481 INFO L124 PetriNetUnfolderBase]: 835/1640 cut-off events. [2024-11-07 19:39:44,481 INFO L125 PetriNetUnfolderBase]: For 15212/15212 co-relation queries the response was YES. [2024-11-07 19:39:44,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9322 conditions, 1640 events. 835/1640 cut-off events. For 15212/15212 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 9758 event pairs, 130 based on Foata normal form. 5/1645 useless extension candidates. Maximal degree in co-relation 9224. Up to 869 conditions per place. [2024-11-07 19:39:44,493 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 110 selfloop transitions, 111 changer transitions 40/262 dead transitions. [2024-11-07 19:39:44,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 262 transitions, 4629 flow [2024-11-07 19:39:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:39:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:39:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 116 transitions. [2024-11-07 19:39:44,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2024-11-07 19:39:44,498 INFO L175 Difference]: Start difference. First operand has 175 places, 232 transitions, 3803 flow. Second operand 12 states and 116 transitions. [2024-11-07 19:39:44,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 262 transitions, 4629 flow [2024-11-07 19:39:44,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 262 transitions, 4345 flow, removed 97 selfloop flow, removed 11 redundant places. [2024-11-07 19:39:44,635 INFO L231 Difference]: Finished difference. Result has 173 places, 200 transitions, 3260 flow [2024-11-07 19:39:44,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3545, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3260, PETRI_PLACES=173, PETRI_TRANSITIONS=200} [2024-11-07 19:39:44,635 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 147 predicate places. [2024-11-07 19:39:44,636 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 200 transitions, 3260 flow [2024-11-07 19:39:44,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 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 19:39:44,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:44,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:44,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:44,836 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,SelfDestructingSolverStorable36 [2024-11-07 19:39:44,837 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 19:39:44,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1536337614, now seen corresponding path program 8 times [2024-11-07 19:39:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:44,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981286711] [2024-11-07 19:39:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:44,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:44,919 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 19:39:44,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:44,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981286711] [2024-11-07 19:39:44,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981286711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:44,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353394026] [2024-11-07 19:39:44,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:44,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:44,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:44,922 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 19:39:44,923 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 19:39:44,956 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:44,956 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:44,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:44,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:45,054 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 19:39:45,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:45,201 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 19:39:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353394026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:45,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:45,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833265056] [2024-11-07 19:39:45,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:45,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:45,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:45,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:45,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 200 transitions, 3260 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:45,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:45,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:45,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:45,589 INFO L124 PetriNetUnfolderBase]: 759/1495 cut-off events. [2024-11-07 19:39:45,590 INFO L125 PetriNetUnfolderBase]: For 13929/13929 co-relation queries the response was YES. [2024-11-07 19:39:45,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8389 conditions, 1495 events. 759/1495 cut-off events. For 13929/13929 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8700 event pairs, 120 based on Foata normal form. 4/1499 useless extension candidates. Maximal degree in co-relation 8267. Up to 719 conditions per place. [2024-11-07 19:39:45,598 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 107 selfloop transitions, 97 changer transitions 33/238 dead transitions. [2024-11-07 19:39:45,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 238 transitions, 4029 flow [2024-11-07 19:39:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:39:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:39:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 123 transitions. [2024-11-07 19:39:45,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4270833333333333 [2024-11-07 19:39:45,601 INFO L175 Difference]: Start difference. First operand has 173 places, 200 transitions, 3260 flow. Second operand 12 states and 123 transitions. [2024-11-07 19:39:45,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 238 transitions, 4029 flow [2024-11-07 19:39:45,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 238 transitions, 3830 flow, removed 3 selfloop flow, removed 9 redundant places. [2024-11-07 19:39:45,640 INFO L231 Difference]: Finished difference. Result has 170 places, 176 transitions, 2888 flow [2024-11-07 19:39:45,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3063, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2888, PETRI_PLACES=170, PETRI_TRANSITIONS=176} [2024-11-07 19:39:45,640 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 144 predicate places. [2024-11-07 19:39:45,640 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 176 transitions, 2888 flow [2024-11-07 19:39:45,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:45,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:45,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:45,653 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 19:39:45,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:45,841 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 19:39:45,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:45,842 INFO L85 PathProgramCache]: Analyzing trace with hash 442095410, now seen corresponding path program 9 times [2024-11-07 19:39:45,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:45,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861585071] [2024-11-07 19:39:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:45,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:45,924 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 19:39:45,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:45,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861585071] [2024-11-07 19:39:45,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861585071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:45,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514835251] [2024-11-07 19:39:45,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:45,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:45,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:45,926 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 19:39:45,928 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 19:39:45,959 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:39:45,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:45,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:45,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:46,053 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 19:39:46,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:46,190 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 19:39:46,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514835251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:46,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:46,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-11-07 19:39:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092927627] [2024-11-07 19:39:46,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:46,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 19:39:46,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 19:39:46,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-07 19:39:46,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:46,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 176 transitions, 2888 flow. Second operand has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 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 19:39:46,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:46,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:46,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:47,219 INFO L124 PetriNetUnfolderBase]: 1206/2373 cut-off events. [2024-11-07 19:39:47,220 INFO L125 PetriNetUnfolderBase]: For 24533/24533 co-relation queries the response was YES. [2024-11-07 19:39:47,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13337 conditions, 2373 events. 1206/2373 cut-off events. For 24533/24533 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 15306 event pairs, 190 based on Foata normal form. 31/2404 useless extension candidates. Maximal degree in co-relation 13159. Up to 948 conditions per place. [2024-11-07 19:39:47,256 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 178 selfloop transitions, 208 changer transitions 17/404 dead transitions. [2024-11-07 19:39:47,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 404 transitions, 6909 flow [2024-11-07 19:39:47,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 19:39:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-07 19:39:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 327 transitions. [2024-11-07 19:39:47,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3784722222222222 [2024-11-07 19:39:47,262 INFO L175 Difference]: Start difference. First operand has 170 places, 176 transitions, 2888 flow. Second operand 36 states and 327 transitions. [2024-11-07 19:39:47,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 404 transitions, 6909 flow [2024-11-07 19:39:47,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 404 transitions, 6401 flow, removed 30 selfloop flow, removed 12 redundant places. [2024-11-07 19:39:47,319 INFO L231 Difference]: Finished difference. Result has 200 places, 296 transitions, 5423 flow [2024-11-07 19:39:47,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=5423, PETRI_PLACES=200, PETRI_TRANSITIONS=296} [2024-11-07 19:39:47,320 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 174 predicate places. [2024-11-07 19:39:47,320 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 296 transitions, 5423 flow [2024-11-07 19:39:47,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 0 states have call successors, (0), 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 19:39:47,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:47,323 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:47,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 19:39:47,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-07 19:39:47,527 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 19:39:47,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1868540080, now seen corresponding path program 10 times [2024-11-07 19:39:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361636629] [2024-11-07 19:39:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:47,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:47,616 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 19:39:47,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:47,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361636629] [2024-11-07 19:39:47,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361636629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:47,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131798602] [2024-11-07 19:39:47,616 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:47,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:47,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:47,621 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 19:39:47,622 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 19:39:47,655 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:47,655 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:47,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:47,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:47,707 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 19:39:47,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:47,870 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 19:39:47,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131798602] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:47,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:47,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-07 19:39:47,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158674324] [2024-11-07 19:39:47,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:47,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 19:39:47,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:47,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 19:39:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-07 19:39:47,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:47,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 296 transitions, 5423 flow. Second operand has 20 states, 20 states have (on average 5.55) internal successors, (111), 20 states have internal predecessors, (111), 0 states have call successors, (0), 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 19:39:47,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:47,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:47,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:48,821 INFO L124 PetriNetUnfolderBase]: 1233/2416 cut-off events. [2024-11-07 19:39:48,822 INFO L125 PetriNetUnfolderBase]: For 26539/26539 co-relation queries the response was YES. [2024-11-07 19:39:48,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14536 conditions, 2416 events. 1233/2416 cut-off events. For 26539/26539 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 15628 event pairs, 69 based on Foata normal form. 17/2433 useless extension candidates. Maximal degree in co-relation 14359. Up to 712 conditions per place. [2024-11-07 19:39:48,837 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 110 selfloop transitions, 250 changer transitions 39/400 dead transitions. [2024-11-07 19:39:48,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 400 transitions, 7375 flow [2024-11-07 19:39:48,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-07 19:39:48,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-07 19:39:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 242 transitions. [2024-11-07 19:39:48,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34770114942528735 [2024-11-07 19:39:48,839 INFO L175 Difference]: Start difference. First operand has 200 places, 296 transitions, 5423 flow. Second operand 29 states and 242 transitions. [2024-11-07 19:39:48,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 400 transitions, 7375 flow [2024-11-07 19:39:48,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 400 transitions, 6744 flow, removed 225 selfloop flow, removed 9 redundant places. [2024-11-07 19:39:48,959 INFO L231 Difference]: Finished difference. Result has 229 places, 324 transitions, 6182 flow [2024-11-07 19:39:48,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4759, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=6182, PETRI_PLACES=229, PETRI_TRANSITIONS=324} [2024-11-07 19:39:48,960 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 203 predicate places. [2024-11-07 19:39:48,961 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 324 transitions, 6182 flow [2024-11-07 19:39:48,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 20 states have internal predecessors, (111), 0 states have call successors, (0), 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 19:39:48,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:48,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:48,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:49,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-07 19:39:49,163 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 19:39:49,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1814202574, now seen corresponding path program 11 times [2024-11-07 19:39:49,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:49,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773756060] [2024-11-07 19:39:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:49,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:49,243 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 19:39:49,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:49,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773756060] [2024-11-07 19:39:49,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773756060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:49,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959688662] [2024-11-07 19:39:49,243 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:49,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:49,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:49,247 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 19:39:49,248 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 19:39:49,280 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:49,280 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:49,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:39:49,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:49,338 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:49,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959688662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:49,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:49,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-07 19:39:49,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263934143] [2024-11-07 19:39:49,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:49,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:49,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:49,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:49,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:39:49,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:49,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 324 transitions, 6182 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 19:39:49,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:49,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:49,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:49,773 INFO L124 PetriNetUnfolderBase]: 1180/2320 cut-off events. [2024-11-07 19:39:49,773 INFO L125 PetriNetUnfolderBase]: For 29990/29990 co-relation queries the response was YES. [2024-11-07 19:39:49,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14863 conditions, 2320 events. 1180/2320 cut-off events. For 29990/29990 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 14898 event pairs, 124 based on Foata normal form. 17/2337 useless extension candidates. Maximal degree in co-relation 14703. Up to 655 conditions per place. [2024-11-07 19:39:49,789 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 140 selfloop transitions, 107 changer transitions 105/353 dead transitions. [2024-11-07 19:39:49,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 353 transitions, 7263 flow [2024-11-07 19:39:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 86 transitions. [2024-11-07 19:39:49,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39814814814814814 [2024-11-07 19:39:49,790 INFO L175 Difference]: Start difference. First operand has 229 places, 324 transitions, 6182 flow. Second operand 9 states and 86 transitions. [2024-11-07 19:39:49,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 353 transitions, 7263 flow [2024-11-07 19:39:49,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 353 transitions, 7071 flow, removed 75 selfloop flow, removed 6 redundant places. [2024-11-07 19:39:49,910 INFO L231 Difference]: Finished difference. Result has 227 places, 236 transitions, 4547 flow [2024-11-07 19:39:49,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5990, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4547, PETRI_PLACES=227, PETRI_TRANSITIONS=236} [2024-11-07 19:39:49,911 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 201 predicate places. [2024-11-07 19:39:49,911 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 236 transitions, 4547 flow [2024-11-07 19:39:49,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 19:39:49,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:49,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:49,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:50,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:50,112 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 19:39:50,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:50,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1070490516, now seen corresponding path program 12 times [2024-11-07 19:39:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:50,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478450653] [2024-11-07 19:39:50,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:50,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:50,183 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 19:39:50,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:50,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478450653] [2024-11-07 19:39:50,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478450653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:50,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663816415] [2024-11-07 19:39:50,184 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:50,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:50,186 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 19:39:50,187 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 19:39:50,219 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:39:50,219 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:50,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:50,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:50,282 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 19:39:50,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:50,452 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 19:39:50,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663816415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:50,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:50,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-07 19:39:50,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745149922] [2024-11-07 19:39:50,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:50,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:39:50,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:50,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:39:50,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:39:50,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:50,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 236 transitions, 4547 flow. Second operand has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 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 19:39:50,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:50,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:50,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:51,101 INFO L124 PetriNetUnfolderBase]: 907/1893 cut-off events. [2024-11-07 19:39:51,102 INFO L125 PetriNetUnfolderBase]: For 21722/21722 co-relation queries the response was YES. [2024-11-07 19:39:51,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12048 conditions, 1893 events. 907/1893 cut-off events. For 21722/21722 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 12533 event pairs, 58 based on Foata normal form. 4/1897 useless extension candidates. Maximal degree in co-relation 11981. Up to 433 conditions per place. [2024-11-07 19:39:51,112 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 92 selfloop transitions, 201 changer transitions 64/358 dead transitions. [2024-11-07 19:39:51,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 358 transitions, 6957 flow [2024-11-07 19:39:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-07 19:39:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-07 19:39:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 239 transitions. [2024-11-07 19:39:51,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36882716049382713 [2024-11-07 19:39:51,118 INFO L175 Difference]: Start difference. First operand has 227 places, 236 transitions, 4547 flow. Second operand 27 states and 239 transitions. [2024-11-07 19:39:51,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 358 transitions, 6957 flow [2024-11-07 19:39:51,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 358 transitions, 6353 flow, removed 44 selfloop flow, removed 18 redundant places. [2024-11-07 19:39:51,198 INFO L231 Difference]: Finished difference. Result has 221 places, 251 transitions, 4959 flow [2024-11-07 19:39:51,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4114, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=4959, PETRI_PLACES=221, PETRI_TRANSITIONS=251} [2024-11-07 19:39:51,199 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 195 predicate places. [2024-11-07 19:39:51,199 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 251 transitions, 4959 flow [2024-11-07 19:39:51,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 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 19:39:51,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:51,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:51,211 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 19:39:51,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:51,403 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 19:39:51,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:51,404 INFO L85 PathProgramCache]: Analyzing trace with hash -129278282, now seen corresponding path program 13 times [2024-11-07 19:39:51,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:51,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48114194] [2024-11-07 19:39:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:51,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:51,501 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 19:39:51,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48114194] [2024-11-07 19:39:51,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48114194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:51,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013147685] [2024-11-07 19:39:51,502 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:51,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:51,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:51,504 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 19:39:51,505 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 19:39:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:51,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:51,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:51,638 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 19:39:51,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:51,783 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 19:39:51,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013147685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:51,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:51,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-07 19:39:51,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665751979] [2024-11-07 19:39:51,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:51,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 19:39:51,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:51,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 19:39:51,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-07 19:39:51,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:51,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 251 transitions, 4959 flow. Second operand has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 22 states have internal predecessors, (122), 0 states have call successors, (0), 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 19:39:51,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:51,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:51,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:52,176 INFO L124 PetriNetUnfolderBase]: 894/1878 cut-off events. [2024-11-07 19:39:52,177 INFO L125 PetriNetUnfolderBase]: For 20293/20293 co-relation queries the response was YES. [2024-11-07 19:39:52,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11693 conditions, 1878 events. 894/1878 cut-off events. For 20293/20293 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 12424 event pairs, 175 based on Foata normal form. 3/1881 useless extension candidates. Maximal degree in co-relation 11628. Up to 993 conditions per place. [2024-11-07 19:39:52,188 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 181 selfloop transitions, 120 changer transitions 22/324 dead transitions. [2024-11-07 19:39:52,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 324 transitions, 6685 flow [2024-11-07 19:39:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:39:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:39:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 120 transitions. [2024-11-07 19:39:52,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2024-11-07 19:39:52,189 INFO L175 Difference]: Start difference. First operand has 221 places, 251 transitions, 4959 flow. Second operand 13 states and 120 transitions. [2024-11-07 19:39:52,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 324 transitions, 6685 flow [2024-11-07 19:39:52,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 324 transitions, 6148 flow, removed 92 selfloop flow, removed 12 redundant places. [2024-11-07 19:39:52,268 INFO L231 Difference]: Finished difference. Result has 213 places, 264 transitions, 5027 flow [2024-11-07 19:39:52,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4501, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5027, PETRI_PLACES=213, PETRI_TRANSITIONS=264} [2024-11-07 19:39:52,268 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 187 predicate places. [2024-11-07 19:39:52,268 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 264 transitions, 5027 flow [2024-11-07 19:39:52,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 22 states have internal predecessors, (122), 0 states have call successors, (0), 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 19:39:52,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:52,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:52,282 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 19:39:52,469 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,SelfDestructingSolverStorable42 [2024-11-07 19:39:52,470 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 19:39:52,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1120484376, now seen corresponding path program 14 times [2024-11-07 19:39:52,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:52,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309291738] [2024-11-07 19:39:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:52,543 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 19:39:52,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:52,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309291738] [2024-11-07 19:39:52,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309291738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:52,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28906249] [2024-11-07 19:39:52,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:52,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:52,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:52,548 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 19:39:52,548 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 19:39:52,599 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:52,599 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:52,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:52,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:52,677 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 19:39:52,677 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:52,805 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 19:39:52,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28906249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:52,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:52,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-07 19:39:52,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950244963] [2024-11-07 19:39:52,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:52,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 19:39:52,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:52,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 19:39:52,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-07 19:39:52,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:52,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 264 transitions, 5027 flow. Second operand has 22 states, 22 states have (on average 5.5) internal successors, (121), 22 states have internal predecessors, (121), 0 states have call successors, (0), 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 19:39:52,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:52,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:52,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:53,277 INFO L124 PetriNetUnfolderBase]: 803/1642 cut-off events. [2024-11-07 19:39:53,277 INFO L125 PetriNetUnfolderBase]: For 19173/19173 co-relation queries the response was YES. [2024-11-07 19:39:53,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10310 conditions, 1642 events. 803/1642 cut-off events. For 19173/19173 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10277 event pairs, 139 based on Foata normal form. 2/1644 useless extension candidates. Maximal degree in co-relation 10246. Up to 891 conditions per place. [2024-11-07 19:39:53,289 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 143 selfloop transitions, 93 changer transitions 68/305 dead transitions. [2024-11-07 19:39:53,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 305 transitions, 6111 flow [2024-11-07 19:39:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:39:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:39:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 112 transitions. [2024-11-07 19:39:53,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.358974358974359 [2024-11-07 19:39:53,290 INFO L175 Difference]: Start difference. First operand has 213 places, 264 transitions, 5027 flow. Second operand 13 states and 112 transitions. [2024-11-07 19:39:53,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 305 transitions, 6111 flow [2024-11-07 19:39:53,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 305 transitions, 5987 flow, removed 10 selfloop flow, removed 9 redundant places. [2024-11-07 19:39:53,396 INFO L231 Difference]: Finished difference. Result has 216 places, 228 transitions, 4339 flow [2024-11-07 19:39:53,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4907, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4339, PETRI_PLACES=216, PETRI_TRANSITIONS=228} [2024-11-07 19:39:53,397 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 190 predicate places. [2024-11-07 19:39:53,397 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 228 transitions, 4339 flow [2024-11-07 19:39:53,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.5) internal successors, (121), 22 states have internal predecessors, (121), 0 states have call successors, (0), 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 19:39:53,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:53,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:53,409 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 19:39:53,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:53,597 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 19:39:53,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:53,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1141370260, now seen corresponding path program 15 times [2024-11-07 19:39:53,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:53,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526354302] [2024-11-07 19:39:53,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:53,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:53,680 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 19:39:53,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:53,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526354302] [2024-11-07 19:39:53,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526354302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:53,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147458107] [2024-11-07 19:39:53,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:53,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:53,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:53,686 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 19:39:53,687 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 19:39:53,722 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:39:53,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:53,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:53,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:53,807 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 19:39:53,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:53,944 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 19:39:53,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147458107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:53,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:53,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:53,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321129262] [2024-11-07 19:39:53,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:53,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:53,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:53,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:53,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:53,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:53,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 228 transitions, 4339 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:53,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:53,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:53,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:54,302 INFO L124 PetriNetUnfolderBase]: 778/1637 cut-off events. [2024-11-07 19:39:54,302 INFO L125 PetriNetUnfolderBase]: For 17379/17379 co-relation queries the response was YES. [2024-11-07 19:39:54,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9449 conditions, 1637 events. 778/1637 cut-off events. For 17379/17379 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 10520 event pairs, 139 based on Foata normal form. 2/1639 useless extension candidates. Maximal degree in co-relation 9387. Up to 847 conditions per place. [2024-11-07 19:39:54,313 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 171 selfloop transitions, 97 changer transitions 14/283 dead transitions. [2024-11-07 19:39:54,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 283 transitions, 5634 flow [2024-11-07 19:39:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:39:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:39:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 112 transitions. [2024-11-07 19:39:54,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-11-07 19:39:54,315 INFO L175 Difference]: Start difference. First operand has 216 places, 228 transitions, 4339 flow. Second operand 12 states and 112 transitions. [2024-11-07 19:39:54,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 283 transitions, 5634 flow [2024-11-07 19:39:54,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 283 transitions, 5172 flow, removed 43 selfloop flow, removed 18 redundant places. [2024-11-07 19:39:54,390 INFO L231 Difference]: Finished difference. Result has 204 places, 244 transitions, 4485 flow [2024-11-07 19:39:54,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3937, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4485, PETRI_PLACES=204, PETRI_TRANSITIONS=244} [2024-11-07 19:39:54,391 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 178 predicate places. [2024-11-07 19:39:54,391 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 244 transitions, 4485 flow [2024-11-07 19:39:54,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:54,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:54,392 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:54,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:54,593 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 19:39:54,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1738706918, now seen corresponding path program 16 times [2024-11-07 19:39:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909738634] [2024-11-07 19:39:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:54,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:54,692 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 19:39:54,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:54,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909738634] [2024-11-07 19:39:54,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909738634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:54,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424006593] [2024-11-07 19:39:54,693 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:39:54,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:54,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:54,695 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 19:39:54,696 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 19:39:54,736 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:39:54,736 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:54,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:54,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:54,838 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 19:39:54,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:54,985 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 19:39:54,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424006593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:54,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:54,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:54,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910166688] [2024-11-07 19:39:54,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:54,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:54,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:54,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:54,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:54,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:54,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 244 transitions, 4485 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:54,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:54,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:54,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:55,469 INFO L124 PetriNetUnfolderBase]: 794/1658 cut-off events. [2024-11-07 19:39:55,469 INFO L125 PetriNetUnfolderBase]: For 16543/16543 co-relation queries the response was YES. [2024-11-07 19:39:55,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9557 conditions, 1658 events. 794/1658 cut-off events. For 16543/16543 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 10594 event pairs, 64 based on Foata normal form. 3/1661 useless extension candidates. Maximal degree in co-relation 9495. Up to 648 conditions per place. [2024-11-07 19:39:55,497 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 114 selfloop transitions, 160 changer transitions 27/302 dead transitions. [2024-11-07 19:39:55,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 302 transitions, 5743 flow [2024-11-07 19:39:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:39:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:39:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 143 transitions. [2024-11-07 19:39:55,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3723958333333333 [2024-11-07 19:39:55,498 INFO L175 Difference]: Start difference. First operand has 204 places, 244 transitions, 4485 flow. Second operand 16 states and 143 transitions. [2024-11-07 19:39:55,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 302 transitions, 5743 flow [2024-11-07 19:39:55,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 302 transitions, 5610 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-11-07 19:39:55,563 INFO L231 Difference]: Finished difference. Result has 218 places, 250 transitions, 4888 flow [2024-11-07 19:39:55,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4362, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4888, PETRI_PLACES=218, PETRI_TRANSITIONS=250} [2024-11-07 19:39:55,564 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 192 predicate places. [2024-11-07 19:39:55,564 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 250 transitions, 4888 flow [2024-11-07 19:39:55,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:55,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:55,564 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:55,577 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 19:39:55,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:55,769 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 19:39:55,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:55,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1260275092, now seen corresponding path program 17 times [2024-11-07 19:39:55,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:55,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881276116] [2024-11-07 19:39:55,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:55,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:55,852 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 19:39:55,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:55,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881276116] [2024-11-07 19:39:55,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881276116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:55,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398663505] [2024-11-07 19:39:55,852 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:39:55,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:55,854 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 19:39:55,855 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 19:39:55,891 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:55,891 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:55,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:39:55,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:39:55,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:39:55,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398663505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:39:55,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:39:55,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-07 19:39:55,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144260267] [2024-11-07 19:39:55,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:39:55,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:39:55,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:55,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:39:55,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:39:55,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:55,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 250 transitions, 4888 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 19:39:55,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:55,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:55,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:56,172 INFO L124 PetriNetUnfolderBase]: 729/1510 cut-off events. [2024-11-07 19:39:56,172 INFO L125 PetriNetUnfolderBase]: For 16628/16628 co-relation queries the response was YES. [2024-11-07 19:39:56,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9336 conditions, 1510 events. 729/1510 cut-off events. For 16628/16628 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 9420 event pairs, 150 based on Foata normal form. 6/1516 useless extension candidates. Maximal degree in co-relation 9270. Up to 837 conditions per place. [2024-11-07 19:39:56,182 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 140 selfloop transitions, 95 changer transitions 33/269 dead transitions. [2024-11-07 19:39:56,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 269 transitions, 5625 flow [2024-11-07 19:39:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:39:56,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:39:56,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 84 transitions. [2024-11-07 19:39:56,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-11-07 19:39:56,182 INFO L175 Difference]: Start difference. First operand has 218 places, 250 transitions, 4888 flow. Second operand 9 states and 84 transitions. [2024-11-07 19:39:56,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 269 transitions, 5625 flow [2024-11-07 19:39:56,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 269 transitions, 5284 flow, removed 31 selfloop flow, removed 11 redundant places. [2024-11-07 19:39:56,249 INFO L231 Difference]: Finished difference. Result has 215 places, 228 transitions, 4290 flow [2024-11-07 19:39:56,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4555, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4290, PETRI_PLACES=215, PETRI_TRANSITIONS=228} [2024-11-07 19:39:56,250 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 189 predicate places. [2024-11-07 19:39:56,250 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 228 transitions, 4290 flow [2024-11-07 19:39:56,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 19:39:56,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:56,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:56,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-07 19:39:56,451 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,SelfDestructingSolverStorable46 [2024-11-07 19:39:56,451 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 19:39:56,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2030859442, now seen corresponding path program 18 times [2024-11-07 19:39:56,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:56,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776006452] [2024-11-07 19:39:56,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:56,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:56,523 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 19:39:56,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:56,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776006452] [2024-11-07 19:39:56,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776006452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:56,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739263242] [2024-11-07 19:39:56,523 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:39:56,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:56,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:56,526 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 19:39:56,527 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 19:39:56,560 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-07 19:39:56,560 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:56,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:56,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:56,641 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 19:39:56,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:56,783 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 19:39:56,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739263242] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:56,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:56,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:56,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847598720] [2024-11-07 19:39:56,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:56,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:56,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:56,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:56,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 228 transitions, 4290 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:56,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:56,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:56,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:57,151 INFO L124 PetriNetUnfolderBase]: 652/1322 cut-off events. [2024-11-07 19:39:57,151 INFO L125 PetriNetUnfolderBase]: For 14303/14303 co-relation queries the response was YES. [2024-11-07 19:39:57,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8192 conditions, 1322 events. 652/1322 cut-off events. For 14303/14303 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7840 event pairs, 45 based on Foata normal form. 7/1329 useless extension candidates. Maximal degree in co-relation 8126. Up to 331 conditions per place. [2024-11-07 19:39:57,160 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 106 selfloop transitions, 102 changer transitions 55/264 dead transitions. [2024-11-07 19:39:57,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 264 transitions, 5125 flow [2024-11-07 19:39:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:39:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:39:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 126 transitions. [2024-11-07 19:39:57,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-07 19:39:57,161 INFO L175 Difference]: Start difference. First operand has 215 places, 228 transitions, 4290 flow. Second operand 14 states and 126 transitions. [2024-11-07 19:39:57,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 264 transitions, 5125 flow [2024-11-07 19:39:57,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 264 transitions, 4912 flow, removed 19 selfloop flow, removed 8 redundant places. [2024-11-07 19:39:57,213 INFO L231 Difference]: Finished difference. Result has 216 places, 189 transitions, 3532 flow [2024-11-07 19:39:57,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4091, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3532, PETRI_PLACES=216, PETRI_TRANSITIONS=189} [2024-11-07 19:39:57,213 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 190 predicate places. [2024-11-07 19:39:57,213 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 189 transitions, 3532 flow [2024-11-07 19:39:57,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:57,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:57,214 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:57,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-07 19:39:57,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:57,418 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 19:39:57,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:57,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1486769870, now seen corresponding path program 19 times [2024-11-07 19:39:57,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:57,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895505885] [2024-11-07 19:39:57,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:57,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:57,490 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 19:39:57,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:57,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895505885] [2024-11-07 19:39:57,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895505885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:57,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974353911] [2024-11-07 19:39:57,490 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:39:57,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:57,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:57,492 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 19:39:57,493 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 19:39:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:57,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:57,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:57,601 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 19:39:57,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:57,719 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 19:39:57,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974353911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:57,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:57,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474425250] [2024-11-07 19:39:57,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:57,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:57,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:57,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:57,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:57,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 189 transitions, 3532 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:57,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:57,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:57,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:58,101 INFO L124 PetriNetUnfolderBase]: 582/1186 cut-off events. [2024-11-07 19:39:58,101 INFO L125 PetriNetUnfolderBase]: For 13655/13655 co-relation queries the response was YES. [2024-11-07 19:39:58,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7385 conditions, 1186 events. 582/1186 cut-off events. For 13655/13655 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 6932 event pairs, 45 based on Foata normal form. 2/1188 useless extension candidates. Maximal degree in co-relation 7321. Up to 285 conditions per place. [2024-11-07 19:39:58,108 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 105 selfloop transitions, 125 changer transitions 13/244 dead transitions. [2024-11-07 19:39:58,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 244 transitions, 4718 flow [2024-11-07 19:39:58,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 19:39:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 19:39:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 123 transitions. [2024-11-07 19:39:58,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3942307692307692 [2024-11-07 19:39:58,109 INFO L175 Difference]: Start difference. First operand has 216 places, 189 transitions, 3532 flow. Second operand 13 states and 123 transitions. [2024-11-07 19:39:58,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 244 transitions, 4718 flow [2024-11-07 19:39:58,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 244 transitions, 4264 flow, removed 39 selfloop flow, removed 22 redundant places. [2024-11-07 19:39:58,149 INFO L231 Difference]: Finished difference. Result has 192 places, 206 transitions, 3908 flow [2024-11-07 19:39:58,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3153, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3908, PETRI_PLACES=192, PETRI_TRANSITIONS=206} [2024-11-07 19:39:58,150 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 166 predicate places. [2024-11-07 19:39:58,150 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 206 transitions, 3908 flow [2024-11-07 19:39:58,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:58,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:58,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:58,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-07 19:39:58,350 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,SelfDestructingSolverStorable48 [2024-11-07 19:39:58,351 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 19:39:58,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:58,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1567333840, now seen corresponding path program 20 times [2024-11-07 19:39:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:58,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394655423] [2024-11-07 19:39:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:58,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:58,422 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 19:39:58,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:58,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394655423] [2024-11-07 19:39:58,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394655423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:58,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582473180] [2024-11-07 19:39:58,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:39:58,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:58,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:58,425 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 19:39:58,426 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 19:39:58,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:39:58,458 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:58,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:58,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:58,527 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 19:39:58,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:58,661 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 19:39:58,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582473180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:58,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:58,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-11-07 19:39:58,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130541024] [2024-11-07 19:39:58,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:58,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 19:39:58,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 19:39:58,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-07 19:39:58,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:58,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 206 transitions, 3908 flow. Second operand has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:58,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:58,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:58,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:39:59,089 INFO L124 PetriNetUnfolderBase]: 716/1461 cut-off events. [2024-11-07 19:39:59,089 INFO L125 PetriNetUnfolderBase]: For 14931/14931 co-relation queries the response was YES. [2024-11-07 19:39:59,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9083 conditions, 1461 events. 716/1461 cut-off events. For 14931/14931 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9060 event pairs, 78 based on Foata normal form. 4/1465 useless extension candidates. Maximal degree in co-relation 9025. Up to 548 conditions per place. [2024-11-07 19:39:59,097 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 137 selfloop transitions, 102 changer transitions 46/286 dead transitions. [2024-11-07 19:39:59,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 286 transitions, 5633 flow [2024-11-07 19:39:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:39:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:39:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 140 transitions. [2024-11-07 19:39:59,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3645833333333333 [2024-11-07 19:39:59,098 INFO L175 Difference]: Start difference. First operand has 192 places, 206 transitions, 3908 flow. Second operand 16 states and 140 transitions. [2024-11-07 19:39:59,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 286 transitions, 5633 flow [2024-11-07 19:39:59,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 286 transitions, 5475 flow, removed 17 selfloop flow, removed 7 redundant places. [2024-11-07 19:39:59,146 INFO L231 Difference]: Finished difference. Result has 203 places, 209 transitions, 4112 flow [2024-11-07 19:39:59,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3787, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4112, PETRI_PLACES=203, PETRI_TRANSITIONS=209} [2024-11-07 19:39:59,147 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 177 predicate places. [2024-11-07 19:39:59,147 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 209 transitions, 4112 flow [2024-11-07 19:39:59,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 22 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:39:59,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:39:59,147 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:39:59,159 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 19:39:59,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-07 19:39:59,348 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 19:39:59,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:39:59,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2021999672, now seen corresponding path program 21 times [2024-11-07 19:39:59,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:39:59,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36223130] [2024-11-07 19:39:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:39:59,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:39:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:39:59,417 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 19:39:59,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:39:59,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36223130] [2024-11-07 19:39:59,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36223130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:39:59,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449115869] [2024-11-07 19:39:59,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:39:59,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:39:59,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:39:59,419 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 19:39:59,420 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 19:39:59,453 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:39:59,454 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:39:59,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:39:59,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:39:59,547 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 19:39:59,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:39:59,671 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 19:39:59,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449115869] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:39:59,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:39:59,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-07 19:39:59,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152554444] [2024-11-07 19:39:59,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:39:59,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 19:39:59,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:39:59,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 19:39:59,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-07 19:39:59,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:39:59,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 209 transitions, 4112 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:39:59,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:39:59,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:39:59,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:00,022 INFO L124 PetriNetUnfolderBase]: 598/1213 cut-off events. [2024-11-07 19:40:00,022 INFO L125 PetriNetUnfolderBase]: For 13017/13017 co-relation queries the response was YES. [2024-11-07 19:40:00,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7887 conditions, 1213 events. 598/1213 cut-off events. For 13017/13017 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7095 event pairs, 60 based on Foata normal form. 6/1219 useless extension candidates. Maximal degree in co-relation 7826. Up to 381 conditions per place. [2024-11-07 19:40:00,029 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 106 selfloop transitions, 106 changer transitions 27/240 dead transitions. [2024-11-07 19:40:00,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 240 transitions, 4815 flow [2024-11-07 19:40:00,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:40:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:40:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 115 transitions. [2024-11-07 19:40:00,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3993055555555556 [2024-11-07 19:40:00,030 INFO L175 Difference]: Start difference. First operand has 203 places, 209 transitions, 4112 flow. Second operand 12 states and 115 transitions. [2024-11-07 19:40:00,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 240 transitions, 4815 flow [2024-11-07 19:40:00,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 240 transitions, 4717 flow, removed 25 selfloop flow, removed 8 redundant places. [2024-11-07 19:40:00,071 INFO L231 Difference]: Finished difference. Result has 207 places, 191 transitions, 4036 flow [2024-11-07 19:40:00,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4018, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4036, PETRI_PLACES=207, PETRI_TRANSITIONS=191} [2024-11-07 19:40:00,072 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 181 predicate places. [2024-11-07 19:40:00,072 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 191 transitions, 4036 flow [2024-11-07 19:40:00,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 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 19:40:00,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:00,072 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:00,084 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 19:40:00,273 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,SelfDestructingSolverStorable50 [2024-11-07 19:40:00,273 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 19:40:00,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:00,274 INFO L85 PathProgramCache]: Analyzing trace with hash -110996144, now seen corresponding path program 22 times [2024-11-07 19:40:00,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:00,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036889985] [2024-11-07 19:40:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:00,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:00,343 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 19:40:00,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:00,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036889985] [2024-11-07 19:40:00,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036889985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:00,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47622230] [2024-11-07 19:40:00,344 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:40:00,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:00,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:00,346 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 19:40:00,347 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 19:40:00,378 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:40:00,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:00,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:40:00,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:00,442 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 19:40:00,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:00,570 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 19:40:00,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47622230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:00,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:00,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-07 19:40:00,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739859805] [2024-11-07 19:40:00,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:00,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 19:40:00,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:00,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 19:40:00,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-11-07 19:40:00,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:00,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 191 transitions, 4036 flow. Second operand has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 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 19:40:00,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:00,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:00,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:01,115 INFO L124 PetriNetUnfolderBase]: 717/1415 cut-off events. [2024-11-07 19:40:01,115 INFO L125 PetriNetUnfolderBase]: For 20584/20584 co-relation queries the response was YES. [2024-11-07 19:40:01,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10437 conditions, 1415 events. 717/1415 cut-off events. For 20584/20584 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8323 event pairs, 37 based on Foata normal form. 4/1419 useless extension candidates. Maximal degree in co-relation 10374. Up to 289 conditions per place. [2024-11-07 19:40:01,123 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 82 selfloop transitions, 175 changer transitions 50/308 dead transitions. [2024-11-07 19:40:01,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 308 transitions, 6699 flow [2024-11-07 19:40:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 19:40:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 19:40:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 203 transitions. [2024-11-07 19:40:01,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3524305555555556 [2024-11-07 19:40:01,124 INFO L175 Difference]: Start difference. First operand has 207 places, 191 transitions, 4036 flow. Second operand 24 states and 203 transitions. [2024-11-07 19:40:01,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 308 transitions, 6699 flow [2024-11-07 19:40:01,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 308 transitions, 6204 flow, removed 14 selfloop flow, removed 11 redundant places. [2024-11-07 19:40:01,187 INFO L231 Difference]: Finished difference. Result has 216 places, 228 transitions, 5090 flow [2024-11-07 19:40:01,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3690, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5090, PETRI_PLACES=216, PETRI_TRANSITIONS=228} [2024-11-07 19:40:01,188 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 190 predicate places. [2024-11-07 19:40:01,188 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 228 transitions, 5090 flow [2024-11-07 19:40:01,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 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 19:40:01,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:01,188 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:01,200 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 19:40:01,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:01,389 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 19:40:01,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2067561224, now seen corresponding path program 23 times [2024-11-07 19:40:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:01,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738131913] [2024-11-07 19:40:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:01,438 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 19:40:01,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:01,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738131913] [2024-11-07 19:40:01,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738131913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:01,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170315443] [2024-11-07 19:40:01,439 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:40:01,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:01,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:01,441 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 19:40:01,442 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 19:40:01,477 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:40:01,477 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:01,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:40:01,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:01,490 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 19:40:01,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:01,548 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 19:40:01,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170315443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:01,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:01,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-07 19:40:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245708693] [2024-11-07 19:40:01,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:01,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:40:01,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:01,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:40:01,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:40:01,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:01,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 228 transitions, 5090 flow. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 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 19:40:01,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:01,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:01,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:01,836 INFO L124 PetriNetUnfolderBase]: 507/1087 cut-off events. [2024-11-07 19:40:01,836 INFO L125 PetriNetUnfolderBase]: For 17723/17723 co-relation queries the response was YES. [2024-11-07 19:40:01,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8347 conditions, 1087 events. 507/1087 cut-off events. For 17723/17723 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6528 event pairs, 65 based on Foata normal form. 16/1094 useless extension candidates. Maximal degree in co-relation 8277. Up to 451 conditions per place. [2024-11-07 19:40:01,845 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 121 selfloop transitions, 55 changer transitions 8/251 dead transitions. [2024-11-07 19:40:01,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 251 transitions, 5518 flow [2024-11-07 19:40:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:40:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:40:01,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 112 transitions. [2024-11-07 19:40:01,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-07 19:40:01,846 INFO L175 Difference]: Start difference. First operand has 216 places, 228 transitions, 5090 flow. Second operand 10 states and 112 transitions. [2024-11-07 19:40:01,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 251 transitions, 5518 flow [2024-11-07 19:40:01,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 251 transitions, 5340 flow, removed 74 selfloop flow, removed 6 redundant places. [2024-11-07 19:40:01,908 INFO L231 Difference]: Finished difference. Result has 214 places, 223 transitions, 4873 flow [2024-11-07 19:40:01,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4768, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4873, PETRI_PLACES=214, PETRI_TRANSITIONS=223} [2024-11-07 19:40:01,909 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 188 predicate places. [2024-11-07 19:40:01,909 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 223 transitions, 4873 flow [2024-11-07 19:40:01,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 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 19:40:01,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:01,909 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:01,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-07 19:40:02,111 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,SelfDestructingSolverStorable52 [2024-11-07 19:40:02,112 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 19:40:02,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1270012053, now seen corresponding path program 24 times [2024-11-07 19:40:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:02,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997239568] [2024-11-07 19:40:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:02,139 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 19:40:02,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:02,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997239568] [2024-11-07 19:40:02,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997239568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:02,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803788123] [2024-11-07 19:40:02,140 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:40:02,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:02,142 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 19:40:02,143 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 19:40:02,184 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:40:02,184 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:02,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:40:02,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:02,192 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 19:40:02,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:02,230 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 19:40:02,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803788123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:02,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:02,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 10 [2024-11-07 19:40:02,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166623183] [2024-11-07 19:40:02,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:02,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:40:02,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:02,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:40:02,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:40:02,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:02,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 223 transitions, 4873 flow. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 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 19:40:02,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:02,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:02,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:02,468 INFO L124 PetriNetUnfolderBase]: 507/1065 cut-off events. [2024-11-07 19:40:02,468 INFO L125 PetriNetUnfolderBase]: For 19027/19027 co-relation queries the response was YES. [2024-11-07 19:40:02,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8265 conditions, 1065 events. 507/1065 cut-off events. For 19027/19027 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6198 event pairs, 114 based on Foata normal form. 26/1083 useless extension candidates. Maximal degree in co-relation 8196. Up to 372 conditions per place. [2024-11-07 19:40:02,478 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 125 selfloop transitions, 63 changer transitions 4/247 dead transitions. [2024-11-07 19:40:02,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 247 transitions, 5327 flow [2024-11-07 19:40:02,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:40:02,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:40:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 114 transitions. [2024-11-07 19:40:02,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475 [2024-11-07 19:40:02,484 INFO L175 Difference]: Start difference. First operand has 214 places, 223 transitions, 4873 flow. Second operand 10 states and 114 transitions. [2024-11-07 19:40:02,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 247 transitions, 5327 flow [2024-11-07 19:40:02,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 247 transitions, 5067 flow, removed 23 selfloop flow, removed 12 redundant places. [2024-11-07 19:40:02,556 INFO L231 Difference]: Finished difference. Result has 210 places, 225 transitions, 4820 flow [2024-11-07 19:40:02,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4166, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4820, PETRI_PLACES=210, PETRI_TRANSITIONS=225} [2024-11-07 19:40:02,561 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 184 predicate places. [2024-11-07 19:40:02,561 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 225 transitions, 4820 flow [2024-11-07 19:40:02,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 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 19:40:02,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:02,561 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:02,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-07 19:40:02,761 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,SelfDestructingSolverStorable53 [2024-11-07 19:40:02,761 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 19:40:02,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:02,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1617528216, now seen corresponding path program 25 times [2024-11-07 19:40:02,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:02,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990195979] [2024-11-07 19:40:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:02,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:02,784 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 19:40:02,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:02,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990195979] [2024-11-07 19:40:02,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990195979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:02,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440471987] [2024-11-07 19:40:02,785 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:40:02,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:02,790 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 19:40:02,791 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 19:40:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:02,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:40:02,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:02,840 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 19:40:02,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:02,880 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 19:40:02,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440471987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:02,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:02,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 10 [2024-11-07 19:40:02,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258285328] [2024-11-07 19:40:02,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:02,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:40:02,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:02,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:40:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:40:02,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:02,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 225 transitions, 4820 flow. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 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 19:40:02,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:02,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:02,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:03,118 INFO L124 PetriNetUnfolderBase]: 514/1120 cut-off events. [2024-11-07 19:40:03,118 INFO L125 PetriNetUnfolderBase]: For 17999/17999 co-relation queries the response was YES. [2024-11-07 19:40:03,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8323 conditions, 1120 events. 514/1120 cut-off events. For 17999/17999 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6755 event pairs, 71 based on Foata normal form. 10/1118 useless extension candidates. Maximal degree in co-relation 8256. Up to 341 conditions per place. [2024-11-07 19:40:03,130 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 130 selfloop transitions, 61 changer transitions 6/248 dead transitions. [2024-11-07 19:40:03,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 248 transitions, 5310 flow [2024-11-07 19:40:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:40:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:40:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 100 transitions. [2024-11-07 19:40:03,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-07 19:40:03,130 INFO L175 Difference]: Start difference. First operand has 210 places, 225 transitions, 4820 flow. Second operand 8 states and 100 transitions. [2024-11-07 19:40:03,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 248 transitions, 5310 flow [2024-11-07 19:40:03,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 248 transitions, 5214 flow, removed 41 selfloop flow, removed 3 redundant places. [2024-11-07 19:40:03,195 INFO L231 Difference]: Finished difference. Result has 212 places, 219 transitions, 4723 flow [2024-11-07 19:40:03,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4670, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4723, PETRI_PLACES=212, PETRI_TRANSITIONS=219} [2024-11-07 19:40:03,196 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 186 predicate places. [2024-11-07 19:40:03,196 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 219 transitions, 4723 flow [2024-11-07 19:40:03,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 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 19:40:03,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:03,196 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:03,207 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 19:40:03,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:03,396 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 19:40:03,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:03,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2026358682, now seen corresponding path program 26 times [2024-11-07 19:40:03,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:03,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505167335] [2024-11-07 19:40:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:03,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:03,424 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 19:40:03,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:03,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505167335] [2024-11-07 19:40:03,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505167335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:03,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212234303] [2024-11-07 19:40:03,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:40:03,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:03,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:03,426 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 19:40:03,427 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 19:40:03,461 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:40:03,461 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:03,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:40:03,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:03,467 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 19:40:03,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:03,505 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 19:40:03,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212234303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:03,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:03,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-07 19:40:03,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612181824] [2024-11-07 19:40:03,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:03,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 19:40:03,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:03,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 19:40:03,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 19:40:03,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:03,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 219 transitions, 4723 flow. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 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 19:40:03,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:03,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:03,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:03,881 INFO L124 PetriNetUnfolderBase]: 714/1583 cut-off events. [2024-11-07 19:40:03,881 INFO L125 PetriNetUnfolderBase]: For 28028/28028 co-relation queries the response was YES. [2024-11-07 19:40:03,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11653 conditions, 1583 events. 714/1583 cut-off events. For 28028/28028 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10628 event pairs, 161 based on Foata normal form. 35/1602 useless extension candidates. Maximal degree in co-relation 11585. Up to 495 conditions per place. [2024-11-07 19:40:03,891 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 180 selfloop transitions, 91 changer transitions 9/331 dead transitions. [2024-11-07 19:40:03,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 331 transitions, 6857 flow [2024-11-07 19:40:03,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 19:40:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-07 19:40:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 208 transitions. [2024-11-07 19:40:03,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2024-11-07 19:40:03,892 INFO L175 Difference]: Start difference. First operand has 212 places, 219 transitions, 4723 flow. Second operand 18 states and 208 transitions. [2024-11-07 19:40:03,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 331 transitions, 6857 flow [2024-11-07 19:40:03,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 331 transitions, 6787 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:40:03,983 INFO L231 Difference]: Finished difference. Result has 233 places, 264 transitions, 5951 flow [2024-11-07 19:40:03,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4658, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5951, PETRI_PLACES=233, PETRI_TRANSITIONS=264} [2024-11-07 19:40:03,984 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 207 predicate places. [2024-11-07 19:40:03,984 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 264 transitions, 5951 flow [2024-11-07 19:40:03,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 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 19:40:03,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:03,984 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:03,995 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 19:40:04,188 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,SelfDestructingSolverStorable55 [2024-11-07 19:40:04,188 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 19:40:04,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash 305745906, now seen corresponding path program 27 times [2024-11-07 19:40:04,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:04,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892515163] [2024-11-07 19:40:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:04,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:40:04,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:04,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892515163] [2024-11-07 19:40:04,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892515163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:04,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129308136] [2024-11-07 19:40:04,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:40:04,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:04,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:04,212 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 19:40:04,213 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 19:40:04,244 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:40:04,244 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:04,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:40:04,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:40:04,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:04,282 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 19:40:04,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129308136] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:04,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:04,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 10 [2024-11-07 19:40:04,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783930380] [2024-11-07 19:40:04,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:04,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:40:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:40:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:40:04,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:04,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 264 transitions, 5951 flow. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 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 19:40:04,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:04,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:04,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:04,546 INFO L124 PetriNetUnfolderBase]: 748/1633 cut-off events. [2024-11-07 19:40:04,546 INFO L125 PetriNetUnfolderBase]: For 30561/30561 co-relation queries the response was YES. [2024-11-07 19:40:04,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12875 conditions, 1633 events. 748/1633 cut-off events. For 30561/30561 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10864 event pairs, 216 based on Foata normal form. 14/1631 useless extension candidates. Maximal degree in co-relation 12799. Up to 610 conditions per place. [2024-11-07 19:40:04,558 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 173 selfloop transitions, 73 changer transitions 5/302 dead transitions. [2024-11-07 19:40:04,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 302 transitions, 7043 flow [2024-11-07 19:40:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:40:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:40:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 111 transitions. [2024-11-07 19:40:04,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-11-07 19:40:04,559 INFO L175 Difference]: Start difference. First operand has 233 places, 264 transitions, 5951 flow. Second operand 10 states and 111 transitions. [2024-11-07 19:40:04,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 302 transitions, 7043 flow [2024-11-07 19:40:04,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 302 transitions, 6828 flow, removed 99 selfloop flow, removed 3 redundant places. [2024-11-07 19:40:04,694 INFO L231 Difference]: Finished difference. Result has 242 places, 280 transitions, 6395 flow [2024-11-07 19:40:04,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5743, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6395, PETRI_PLACES=242, PETRI_TRANSITIONS=280} [2024-11-07 19:40:04,695 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 216 predicate places. [2024-11-07 19:40:04,695 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 280 transitions, 6395 flow [2024-11-07 19:40:04,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 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 19:40:04,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:04,695 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:04,706 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 19:40:04,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:04,896 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 19:40:04,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:04,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1682497906, now seen corresponding path program 28 times [2024-11-07 19:40:04,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:04,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361924867] [2024-11-07 19:40:04,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:04,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:04,924 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 19:40:04,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:04,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361924867] [2024-11-07 19:40:04,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361924867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:04,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667526260] [2024-11-07 19:40:04,925 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:40:04,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:04,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:04,926 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 19:40:04,927 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 19:40:04,969 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:40:04,969 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:04,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:40:04,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:04,982 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 19:40:04,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:05,015 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 19:40:05,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667526260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:05,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:05,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-11-07 19:40:05,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174460165] [2024-11-07 19:40:05,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:05,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 19:40:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 19:40:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 19:40:05,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:05,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 280 transitions, 6395 flow. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 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 19:40:05,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:05,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:05,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:05,378 INFO L124 PetriNetUnfolderBase]: 725/1562 cut-off events. [2024-11-07 19:40:05,378 INFO L125 PetriNetUnfolderBase]: For 30138/30138 co-relation queries the response was YES. [2024-11-07 19:40:05,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12533 conditions, 1562 events. 725/1562 cut-off events. For 30138/30138 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10144 event pairs, 205 based on Foata normal form. 16/1562 useless extension candidates. Maximal degree in co-relation 12453. Up to 610 conditions per place. [2024-11-07 19:40:05,391 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 172 selfloop transitions, 76 changer transitions 6/303 dead transitions. [2024-11-07 19:40:05,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 303 transitions, 7079 flow [2024-11-07 19:40:05,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:40:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:40:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 130 transitions. [2024-11-07 19:40:05,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4513888888888889 [2024-11-07 19:40:05,392 INFO L175 Difference]: Start difference. First operand has 242 places, 280 transitions, 6395 flow. Second operand 12 states and 130 transitions. [2024-11-07 19:40:05,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 303 transitions, 7079 flow [2024-11-07 19:40:05,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 303 transitions, 6952 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-07 19:40:05,508 INFO L231 Difference]: Finished difference. Result has 249 places, 278 transitions, 6382 flow [2024-11-07 19:40:05,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6202, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6382, PETRI_PLACES=249, PETRI_TRANSITIONS=278} [2024-11-07 19:40:05,509 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 223 predicate places. [2024-11-07 19:40:05,509 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 278 transitions, 6382 flow [2024-11-07 19:40:05,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 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 19:40:05,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:05,509 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:05,524 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 19:40:05,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:05,710 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 19:40:05,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 959467203, now seen corresponding path program 29 times [2024-11-07 19:40:05,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:05,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459762462] [2024-11-07 19:40:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:05,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:05,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:05,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459762462] [2024-11-07 19:40:05,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459762462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:05,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718878511] [2024-11-07 19:40:05,802 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:40:05,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:05,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:05,804 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 19:40:05,805 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 19:40:05,844 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:40:05,845 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:05,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:40:05,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:05,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:40:05,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:40:05,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718878511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:40:05,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:40:05,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-11-07 19:40:05,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083205845] [2024-11-07 19:40:05,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:40:05,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:40:05,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:05,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:40:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:40:05,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:05,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 278 transitions, 6382 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 19:40:05,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:05,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:05,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:06,240 INFO L124 PetriNetUnfolderBase]: 867/1722 cut-off events. [2024-11-07 19:40:06,240 INFO L125 PetriNetUnfolderBase]: For 29960/29960 co-relation queries the response was YES. [2024-11-07 19:40:06,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13356 conditions, 1722 events. 867/1722 cut-off events. For 29960/29960 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10444 event pairs, 162 based on Foata normal form. 6/1728 useless extension candidates. Maximal degree in co-relation 13274. Up to 767 conditions per place. [2024-11-07 19:40:06,253 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 183 selfloop transitions, 79 changer transitions 30/293 dead transitions. [2024-11-07 19:40:06,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 293 transitions, 7027 flow [2024-11-07 19:40:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:40:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:40:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 86 transitions. [2024-11-07 19:40:06,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39814814814814814 [2024-11-07 19:40:06,254 INFO L175 Difference]: Start difference. First operand has 249 places, 278 transitions, 6382 flow. Second operand 9 states and 86 transitions. [2024-11-07 19:40:06,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 293 transitions, 7027 flow [2024-11-07 19:40:06,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 293 transitions, 6892 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-07 19:40:06,363 INFO L231 Difference]: Finished difference. Result has 249 places, 257 transitions, 5845 flow [2024-11-07 19:40:06,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6247, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5845, PETRI_PLACES=249, PETRI_TRANSITIONS=257} [2024-11-07 19:40:06,364 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 223 predicate places. [2024-11-07 19:40:06,364 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 257 transitions, 5845 flow [2024-11-07 19:40:06,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 19:40:06,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:06,364 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:06,380 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 19:40:06,568 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,SelfDestructingSolverStorable58 [2024-11-07 19:40:06,568 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 19:40:06,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:06,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1541817543, now seen corresponding path program 30 times [2024-11-07 19:40:06,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:06,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797834697] [2024-11-07 19:40:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:06,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797834697] [2024-11-07 19:40:06,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797834697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031020735] [2024-11-07 19:40:06,684 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:40:06,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:06,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:06,686 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 19:40:06,687 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 19:40:06,721 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:40:06,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:06,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:06,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:06,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:07,046 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 19:40:07,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031020735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:07,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:07,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 27 [2024-11-07 19:40:07,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295339067] [2024-11-07 19:40:07,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:07,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 19:40:07,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 19:40:07,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2024-11-07 19:40:07,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:07,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 257 transitions, 5845 flow. Second operand has 28 states, 28 states have (on average 5.642857142857143) internal successors, (158), 28 states have internal predecessors, (158), 0 states have call successors, (0), 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 19:40:07,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:07,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:07,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:08,423 INFO L124 PetriNetUnfolderBase]: 1398/2720 cut-off events. [2024-11-07 19:40:08,423 INFO L125 PetriNetUnfolderBase]: For 52122/52122 co-relation queries the response was YES. [2024-11-07 19:40:08,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22386 conditions, 2720 events. 1398/2720 cut-off events. For 52122/52122 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 18171 event pairs, 40 based on Foata normal form. 21/2741 useless extension candidates. Maximal degree in co-relation 22305. Up to 564 conditions per place. [2024-11-07 19:40:08,444 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 229 selfloop transitions, 287 changer transitions 55/572 dead transitions. [2024-11-07 19:40:08,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 572 transitions, 13234 flow [2024-11-07 19:40:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-07 19:40:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-11-07 19:40:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 408 transitions. [2024-11-07 19:40:08,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3469387755102041 [2024-11-07 19:40:08,445 INFO L175 Difference]: Start difference. First operand has 249 places, 257 transitions, 5845 flow. Second operand 49 states and 408 transitions. [2024-11-07 19:40:08,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 572 transitions, 13234 flow [2024-11-07 19:40:08,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 572 transitions, 12577 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-11-07 19:40:08,624 INFO L231 Difference]: Finished difference. Result has 292 places, 421 transitions, 10194 flow [2024-11-07 19:40:08,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5565, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=10194, PETRI_PLACES=292, PETRI_TRANSITIONS=421} [2024-11-07 19:40:08,624 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 266 predicate places. [2024-11-07 19:40:08,624 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 421 transitions, 10194 flow [2024-11-07 19:40:08,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.642857142857143) internal successors, (158), 28 states have internal predecessors, (158), 0 states have call successors, (0), 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 19:40:08,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:08,625 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:08,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-07 19:40:08,825 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,SelfDestructingSolverStorable59 [2024-11-07 19:40:08,826 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 19:40:08,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash 625859665, now seen corresponding path program 31 times [2024-11-07 19:40:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:08,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145264473] [2024-11-07 19:40:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:08,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:08,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145264473] [2024-11-07 19:40:08,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145264473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278184018] [2024-11-07 19:40:08,922 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:40:08,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:08,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:08,924 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 19:40:08,925 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 19:40:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:08,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:08,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:09,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:09,274 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 19:40:09,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278184018] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:09,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:09,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-07 19:40:09,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907917219] [2024-11-07 19:40:09,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:09,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 19:40:09,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:09,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 19:40:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2024-11-07 19:40:09,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:09,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 421 transitions, 10194 flow. Second operand has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 0 states have call successors, (0), 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 19:40:09,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:09,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:09,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:10,122 INFO L124 PetriNetUnfolderBase]: 1427/2761 cut-off events. [2024-11-07 19:40:10,122 INFO L125 PetriNetUnfolderBase]: For 54030/54030 co-relation queries the response was YES. [2024-11-07 19:40:10,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23210 conditions, 2761 events. 1427/2761 cut-off events. For 54030/54030 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18341 event pairs, 30 based on Foata normal form. 15/2776 useless extension candidates. Maximal degree in co-relation 23117. Up to 672 conditions per place. [2024-11-07 19:40:10,143 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 207 selfloop transitions, 118 changer transitions 175/501 dead transitions. [2024-11-07 19:40:10,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 501 transitions, 12547 flow [2024-11-07 19:40:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 19:40:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 19:40:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 147 transitions. [2024-11-07 19:40:10,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3602941176470588 [2024-11-07 19:40:10,144 INFO L175 Difference]: Start difference. First operand has 292 places, 421 transitions, 10194 flow. Second operand 17 states and 147 transitions. [2024-11-07 19:40:10,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 501 transitions, 12547 flow [2024-11-07 19:40:10,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 501 transitions, 11723 flow, removed 335 selfloop flow, removed 15 redundant places. [2024-11-07 19:40:10,475 INFO L231 Difference]: Finished difference. Result has 288 places, 296 transitions, 6831 flow [2024-11-07 19:40:10,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9467, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6831, PETRI_PLACES=288, PETRI_TRANSITIONS=296} [2024-11-07 19:40:10,475 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 262 predicate places. [2024-11-07 19:40:10,475 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 296 transitions, 6831 flow [2024-11-07 19:40:10,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 0 states have call successors, (0), 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 19:40:10,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:10,476 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:10,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-07 19:40:10,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:10,680 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 19:40:10,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:10,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1294955639, now seen corresponding path program 32 times [2024-11-07 19:40:10,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:10,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903596714] [2024-11-07 19:40:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:10,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:10,768 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 19:40:10,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:10,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903596714] [2024-11-07 19:40:10,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903596714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:10,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916070893] [2024-11-07 19:40:10,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:40:10,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:10,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:10,771 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 19:40:10,772 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 19:40:10,806 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:40:10,806 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:10,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:10,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:10,879 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 19:40:10,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:11,082 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 19:40:11,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916070893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:11,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:11,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-07 19:40:11,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964754979] [2024-11-07 19:40:11,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:11,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:40:11,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:11,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:40:11,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:40:11,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:11,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 296 transitions, 6831 flow. Second operand has 25 states, 25 states have (on average 5.48) internal successors, (137), 25 states have internal predecessors, (137), 0 states have call successors, (0), 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 19:40:11,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:11,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:11,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:12,216 INFO L124 PetriNetUnfolderBase]: 1000/1912 cut-off events. [2024-11-07 19:40:12,216 INFO L125 PetriNetUnfolderBase]: For 41416/41416 co-relation queries the response was YES. [2024-11-07 19:40:12,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16265 conditions, 1912 events. 1000/1912 cut-off events. For 41416/41416 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11408 event pairs, 3 based on Foata normal form. 16/1928 useless extension candidates. Maximal degree in co-relation 16172. Up to 400 conditions per place. [2024-11-07 19:40:12,231 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 144 selfloop transitions, 242 changer transitions 72/459 dead transitions. [2024-11-07 19:40:12,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 459 transitions, 9907 flow [2024-11-07 19:40:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-07 19:40:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2024-11-07 19:40:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 308 transitions. [2024-11-07 19:40:12,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33771929824561403 [2024-11-07 19:40:12,232 INFO L175 Difference]: Start difference. First operand has 288 places, 296 transitions, 6831 flow. Second operand 38 states and 308 transitions. [2024-11-07 19:40:12,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 459 transitions, 9907 flow [2024-11-07 19:40:12,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 459 transitions, 9353 flow, removed 102 selfloop flow, removed 25 redundant places. [2024-11-07 19:40:12,367 INFO L231 Difference]: Finished difference. Result has 296 places, 329 transitions, 7773 flow [2024-11-07 19:40:12,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6433, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=7773, PETRI_PLACES=296, PETRI_TRANSITIONS=329} [2024-11-07 19:40:12,367 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 270 predicate places. [2024-11-07 19:40:12,368 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 329 transitions, 7773 flow [2024-11-07 19:40:12,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.48) internal successors, (137), 25 states have internal predecessors, (137), 0 states have call successors, (0), 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 19:40:12,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:12,368 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:12,380 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 19:40:12,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:12,568 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 19:40:12,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 539074739, now seen corresponding path program 33 times [2024-11-07 19:40:12,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:12,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695748683] [2024-11-07 19:40:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:12,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:12,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695748683] [2024-11-07 19:40:12,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695748683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:12,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039518123] [2024-11-07 19:40:12,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:40:12,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:12,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:12,645 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 19:40:12,646 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 19:40:12,679 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:40:12,679 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:12,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:12,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:12,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:12,902 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 19:40:12,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039518123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:12,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:12,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-07 19:40:12,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779806552] [2024-11-07 19:40:12,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:12,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 19:40:12,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:12,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 19:40:12,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-11-07 19:40:12,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:12,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 329 transitions, 7773 flow. Second operand has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 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 19:40:12,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:12,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:12,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:13,566 INFO L124 PetriNetUnfolderBase]: 966/1799 cut-off events. [2024-11-07 19:40:13,566 INFO L125 PetriNetUnfolderBase]: For 42224/42224 co-relation queries the response was YES. [2024-11-07 19:40:13,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16626 conditions, 1799 events. 966/1799 cut-off events. For 42224/42224 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 10260 event pairs, 228 based on Foata normal form. 4/1803 useless extension candidates. Maximal degree in co-relation 16537. Up to 757 conditions per place. [2024-11-07 19:40:13,579 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 274 selfloop transitions, 121 changer transitions 20/416 dead transitions. [2024-11-07 19:40:13,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 416 transitions, 10193 flow [2024-11-07 19:40:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:40:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:40:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 154 transitions. [2024-11-07 19:40:13,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33771929824561403 [2024-11-07 19:40:13,580 INFO L175 Difference]: Start difference. First operand has 296 places, 329 transitions, 7773 flow. Second operand 19 states and 154 transitions. [2024-11-07 19:40:13,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 416 transitions, 10193 flow [2024-11-07 19:40:13,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 416 transitions, 8899 flow, removed 110 selfloop flow, removed 31 redundant places. [2024-11-07 19:40:13,717 INFO L231 Difference]: Finished difference. Result has 266 places, 352 transitions, 7580 flow [2024-11-07 19:40:13,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6680, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7580, PETRI_PLACES=266, PETRI_TRANSITIONS=352} [2024-11-07 19:40:13,717 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 240 predicate places. [2024-11-07 19:40:13,717 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 352 transitions, 7580 flow [2024-11-07 19:40:13,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 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 19:40:13,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:13,717 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:13,729 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 19:40:13,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:13,918 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 19:40:13,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:13,918 INFO L85 PathProgramCache]: Analyzing trace with hash -881390349, now seen corresponding path program 34 times [2024-11-07 19:40:13,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:13,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201271846] [2024-11-07 19:40:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:14,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:14,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201271846] [2024-11-07 19:40:14,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201271846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:14,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940438368] [2024-11-07 19:40:14,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:40:14,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:14,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:14,027 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 19:40:14,029 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 19:40:14,060 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:40:14,060 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:14,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:14,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:14,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:14,342 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 19:40:14,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940438368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:14,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:14,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-07 19:40:14,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050938330] [2024-11-07 19:40:14,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:14,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 19:40:14,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 19:40:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-07 19:40:14,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:14,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 352 transitions, 7580 flow. Second operand has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 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 19:40:14,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:14,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:14,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:14,845 INFO L124 PetriNetUnfolderBase]: 978/1815 cut-off events. [2024-11-07 19:40:14,845 INFO L125 PetriNetUnfolderBase]: For 34956/34956 co-relation queries the response was YES. [2024-11-07 19:40:14,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15474 conditions, 1815 events. 978/1815 cut-off events. For 34956/34956 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 10379 event pairs, 229 based on Foata normal form. 2/1817 useless extension candidates. Maximal degree in co-relation 15390. Up to 757 conditions per place. [2024-11-07 19:40:14,858 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 278 selfloop transitions, 118 changer transitions 23/420 dead transitions. [2024-11-07 19:40:14,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 420 transitions, 9181 flow [2024-11-07 19:40:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 19:40:14,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 19:40:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 162 transitions. [2024-11-07 19:40:14,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3375 [2024-11-07 19:40:14,863 INFO L175 Difference]: Start difference. First operand has 266 places, 352 transitions, 7580 flow. Second operand 20 states and 162 transitions. [2024-11-07 19:40:14,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 420 transitions, 9181 flow [2024-11-07 19:40:14,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 420 transitions, 9001 flow, removed 29 selfloop flow, removed 11 redundant places. [2024-11-07 19:40:14,983 INFO L231 Difference]: Finished difference. Result has 273 places, 349 transitions, 7559 flow [2024-11-07 19:40:14,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7414, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7559, PETRI_PLACES=273, PETRI_TRANSITIONS=349} [2024-11-07 19:40:14,985 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 247 predicate places. [2024-11-07 19:40:14,985 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 349 transitions, 7559 flow [2024-11-07 19:40:14,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.407407407407407) internal successors, (146), 27 states have internal predecessors, (146), 0 states have call successors, (0), 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 19:40:14,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:14,985 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:14,997 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 19:40:15,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:15,186 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 19:40:15,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:15,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1817474313, now seen corresponding path program 35 times [2024-11-07 19:40:15,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:15,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098329924] [2024-11-07 19:40:15,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:15,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:15,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:15,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098329924] [2024-11-07 19:40:15,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098329924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:15,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191360066] [2024-11-07 19:40:15,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:40:15,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:15,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:15,278 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 19:40:15,279 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 19:40:15,314 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:40:15,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:15,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:40:15,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:40:15,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:40:15,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191360066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:15,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:15,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 21 [2024-11-07 19:40:15,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893490197] [2024-11-07 19:40:15,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:15,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 19:40:15,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 19:40:15,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-07 19:40:15,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:15,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 349 transitions, 7559 flow. Second operand has 22 states, 22 states have (on average 5.7272727272727275) internal successors, (126), 22 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:40:15,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:15,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:15,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:15,992 INFO L124 PetriNetUnfolderBase]: 931/1713 cut-off events. [2024-11-07 19:40:15,992 INFO L125 PetriNetUnfolderBase]: For 34707/34707 co-relation queries the response was YES. [2024-11-07 19:40:15,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14838 conditions, 1713 events. 931/1713 cut-off events. For 34707/34707 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 9553 event pairs, 29 based on Foata normal form. 4/1717 useless extension candidates. Maximal degree in co-relation 14754. Up to 727 conditions per place. [2024-11-07 19:40:16,000 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 62 selfloop transitions, 37 changer transitions 281/381 dead transitions. [2024-11-07 19:40:16,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 381 transitions, 8489 flow [2024-11-07 19:40:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:40:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:40:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 154 transitions. [2024-11-07 19:40:16,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33771929824561403 [2024-11-07 19:40:16,001 INFO L175 Difference]: Start difference. First operand has 273 places, 349 transitions, 7559 flow. Second operand 19 states and 154 transitions. [2024-11-07 19:40:16,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 381 transitions, 8489 flow [2024-11-07 19:40:16,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 381 transitions, 8314 flow, removed 6 selfloop flow, removed 13 redundant places. [2024-11-07 19:40:16,109 INFO L231 Difference]: Finished difference. Result has 275 places, 86 transitions, 1627 flow [2024-11-07 19:40:16,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7384, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1627, PETRI_PLACES=275, PETRI_TRANSITIONS=86} [2024-11-07 19:40:16,110 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 249 predicate places. [2024-11-07 19:40:16,110 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 86 transitions, 1627 flow [2024-11-07 19:40:16,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.7272727272727275) internal successors, (126), 22 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:40:16,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:16,110 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:16,122 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 19:40:16,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,37 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:16,314 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 19:40:16,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:16,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1254373705, now seen corresponding path program 36 times [2024-11-07 19:40:16,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:16,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148037552] [2024-11-07 19:40:16,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:16,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:16,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148037552] [2024-11-07 19:40:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148037552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012618186] [2024-11-07 19:40:16,407 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:40:16,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:16,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:16,409 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 19:40:16,410 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 19:40:16,446 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:40:16,447 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:16,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:16,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:16,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:16,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:16,742 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 19:40:16,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012618186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:16,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:16,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 27 [2024-11-07 19:40:16,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832261729] [2024-11-07 19:40:16,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:16,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 19:40:16,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:16,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 19:40:16,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2024-11-07 19:40:16,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:16,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 86 transitions, 1627 flow. Second operand has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 28 states have internal predecessors, (153), 0 states have call successors, (0), 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 19:40:16,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:16,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:16,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:17,629 INFO L124 PetriNetUnfolderBase]: 309/693 cut-off events. [2024-11-07 19:40:17,629 INFO L125 PetriNetUnfolderBase]: For 10789/10789 co-relation queries the response was YES. [2024-11-07 19:40:17,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4867 conditions, 693 events. 309/693 cut-off events. For 10789/10789 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3494 event pairs, 24 based on Foata normal form. 6/699 useless extension candidates. Maximal degree in co-relation 4782. Up to 155 conditions per place. [2024-11-07 19:40:17,634 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 88 selfloop transitions, 88 changer transitions 19/196 dead transitions. [2024-11-07 19:40:17,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 196 transitions, 3391 flow [2024-11-07 19:40:17,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-07 19:40:17,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2024-11-07 19:40:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 310 transitions. [2024-11-07 19:40:17,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3150406504065041 [2024-11-07 19:40:17,635 INFO L175 Difference]: Start difference. First operand has 275 places, 86 transitions, 1627 flow. Second operand 41 states and 310 transitions. [2024-11-07 19:40:17,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 196 transitions, 3391 flow [2024-11-07 19:40:17,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 196 transitions, 2527 flow, removed 85 selfloop flow, removed 63 redundant places. [2024-11-07 19:40:17,656 INFO L231 Difference]: Finished difference. Result has 206 places, 121 transitions, 1997 flow [2024-11-07 19:40:17,656 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=1997, PETRI_PLACES=206, PETRI_TRANSITIONS=121} [2024-11-07 19:40:17,657 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 180 predicate places. [2024-11-07 19:40:17,657 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 121 transitions, 1997 flow [2024-11-07 19:40:17,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 28 states have internal predecessors, (153), 0 states have call successors, (0), 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 19:40:17,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:17,657 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:17,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-07 19:40:17,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,38 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:17,857 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 19:40:17,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash 4611047, now seen corresponding path program 37 times [2024-11-07 19:40:17,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:17,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689985910] [2024-11-07 19:40:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:17,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:17,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:17,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689985910] [2024-11-07 19:40:17,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689985910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:17,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162333596] [2024-11-07 19:40:17,939 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:40:17,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:17,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:17,941 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 19:40:17,942 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 19:40:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:17,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 19:40:17,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:18,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:18,335 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 19:40:18,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162333596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:18,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:18,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-11-07 19:40:18,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009053181] [2024-11-07 19:40:18,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:18,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 19:40:18,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:18,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 19:40:18,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-11-07 19:40:18,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:18,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 121 transitions, 1997 flow. Second operand has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 0 states have call successors, (0), 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 19:40:18,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:18,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:18,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:18,692 INFO L124 PetriNetUnfolderBase]: 282/620 cut-off events. [2024-11-07 19:40:18,692 INFO L125 PetriNetUnfolderBase]: For 5261/5261 co-relation queries the response was YES. [2024-11-07 19:40:18,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3929 conditions, 620 events. 282/620 cut-off events. For 5261/5261 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2940 event pairs, 11 based on Foata normal form. 4/624 useless extension candidates. Maximal degree in co-relation 3863. Up to 140 conditions per place. [2024-11-07 19:40:18,696 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 54 selfloop transitions, 25 changer transitions 73/153 dead transitions. [2024-11-07 19:40:18,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 153 transitions, 2476 flow [2024-11-07 19:40:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 19:40:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 19:40:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 125 transitions. [2024-11-07 19:40:18,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3472222222222222 [2024-11-07 19:40:18,696 INFO L175 Difference]: Start difference. First operand has 206 places, 121 transitions, 1997 flow. Second operand 15 states and 125 transitions. [2024-11-07 19:40:18,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 153 transitions, 2476 flow [2024-11-07 19:40:18,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 153 transitions, 2146 flow, removed 103 selfloop flow, removed 19 redundant places. [2024-11-07 19:40:18,711 INFO L231 Difference]: Finished difference. Result has 198 places, 58 transitions, 739 flow [2024-11-07 19:40:18,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1675, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=739, PETRI_PLACES=198, PETRI_TRANSITIONS=58} [2024-11-07 19:40:18,711 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 172 predicate places. [2024-11-07 19:40:18,711 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 58 transitions, 739 flow [2024-11-07 19:40:18,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 0 states have call successors, (0), 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 19:40:18,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:18,712 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:18,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-07 19:40:18,915 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,SelfDestructingSolverStorable66 [2024-11-07 19:40:18,915 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 19:40:18,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1664972143, now seen corresponding path program 38 times [2024-11-07 19:40:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492505387] [2024-11-07 19:40:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:18,962 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 19:40:18,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492505387] [2024-11-07 19:40:18,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492505387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86300309] [2024-11-07 19:40:18,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:40:18,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:18,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:18,964 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 19:40:18,966 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 19:40:18,998 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:40:18,998 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:18,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 19:40:18,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:19,010 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 19:40:19,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:19,051 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 19:40:19,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86300309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:19,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:19,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-11-07 19:40:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104248220] [2024-11-07 19:40:19,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:19,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 19:40:19,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:19,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 19:40:19,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-07 19:40:19,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:40:19,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 58 transitions, 739 flow. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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 19:40:19,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:19,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:40:19,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:19,175 INFO L124 PetriNetUnfolderBase]: 84/227 cut-off events. [2024-11-07 19:40:19,175 INFO L125 PetriNetUnfolderBase]: For 1848/1848 co-relation queries the response was YES. [2024-11-07 19:40:19,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 227 events. 84/227 cut-off events. For 1848/1848 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 812 event pairs, 32 based on Foata normal form. 2/223 useless extension candidates. Maximal degree in co-relation 1216. Up to 97 conditions per place. [2024-11-07 19:40:19,176 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 43 selfloop transitions, 16 changer transitions 0/68 dead transitions. [2024-11-07 19:40:19,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 68 transitions, 895 flow [2024-11-07 19:40:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:40:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:40:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 96 transitions. [2024-11-07 19:40:19,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-07 19:40:19,177 INFO L175 Difference]: Start difference. First operand has 198 places, 58 transitions, 739 flow. Second operand 10 states and 96 transitions. [2024-11-07 19:40:19,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 68 transitions, 895 flow [2024-11-07 19:40:19,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 68 transitions, 704 flow, removed 34 selfloop flow, removed 36 redundant places. [2024-11-07 19:40:19,182 INFO L231 Difference]: Finished difference. Result has 136 places, 58 transitions, 590 flow [2024-11-07 19:40:19,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=590, PETRI_PLACES=136, PETRI_TRANSITIONS=58} [2024-11-07 19:40:19,183 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 110 predicate places. [2024-11-07 19:40:19,183 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 58 transitions, 590 flow [2024-11-07 19:40:19,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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 19:40:19,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:19,183 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:19,195 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 19:40:19,383 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,SelfDestructingSolverStorable67 [2024-11-07 19:40:19,383 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 19:40:19,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1653516230, now seen corresponding path program 39 times [2024-11-07 19:40:19,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:19,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912103368] [2024-11-07 19:40:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:19,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:19,429 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 19:40:19,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:19,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912103368] [2024-11-07 19:40:19,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912103368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:19,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031050018] [2024-11-07 19:40:19,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:40:19,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:19,431 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 19:40:19,433 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 19:40:19,464 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-07 19:40:19,464 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:19,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:40:19,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 19:40:19,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:40:19,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031050018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:40:19,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:40:19,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2024-11-07 19:40:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509431509] [2024-11-07 19:40:19,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:40:19,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:40:19,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:40:19,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:40:19,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:19,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 58 transitions, 590 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 19:40:19,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:19,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:19,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:19,629 INFO L124 PetriNetUnfolderBase]: 107/255 cut-off events. [2024-11-07 19:40:19,629 INFO L125 PetriNetUnfolderBase]: For 1187/1187 co-relation queries the response was YES. [2024-11-07 19:40:19,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 255 events. 107/255 cut-off events. For 1187/1187 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 862 event pairs, 28 based on Foata normal form. 2/257 useless extension candidates. Maximal degree in co-relation 1166. Up to 68 conditions per place. [2024-11-07 19:40:19,630 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 46 selfloop transitions, 8 changer transitions 17/72 dead transitions. [2024-11-07 19:40:19,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 72 transitions, 779 flow [2024-11-07 19:40:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:40:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:40:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 79 transitions. [2024-11-07 19:40:19,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36574074074074076 [2024-11-07 19:40:19,631 INFO L175 Difference]: Start difference. First operand has 136 places, 58 transitions, 590 flow. Second operand 9 states and 79 transitions. [2024-11-07 19:40:19,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 72 transitions, 779 flow [2024-11-07 19:40:19,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 72 transitions, 747 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-07 19:40:19,634 INFO L231 Difference]: Finished difference. Result has 138 places, 50 transitions, 470 flow [2024-11-07 19:40:19,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=470, PETRI_PLACES=138, PETRI_TRANSITIONS=50} [2024-11-07 19:40:19,634 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 112 predicate places. [2024-11-07 19:40:19,634 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 50 transitions, 470 flow [2024-11-07 19:40:19,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 19:40:19,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:19,634 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:19,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-07 19:40:19,835 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,SelfDestructingSolverStorable68 [2024-11-07 19:40:19,835 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 19:40:19,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash -568780348, now seen corresponding path program 40 times [2024-11-07 19:40:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:19,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577687970] [2024-11-07 19:40:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:19,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:19,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:19,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577687970] [2024-11-07 19:40:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577687970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383925824] [2024-11-07 19:40:19,947 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:40:19,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:19,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:19,949 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 19:40:19,950 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 19:40:19,988 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:40:19,988 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:19,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 19:40:19,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:20,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:40:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383925824] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:40:20,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:40:20,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2024-11-07 19:40:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734169945] [2024-11-07 19:40:20,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:40:20,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-07 19:40:20,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:20,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-07 19:40:20,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2024-11-07 19:40:20,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:20,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 50 transitions, 470 flow. Second operand has 33 states, 33 states have (on average 5.393939393939394) internal successors, (178), 33 states have internal predecessors, (178), 0 states have call successors, (0), 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 19:40:20,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:20,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:20,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:20,740 INFO L124 PetriNetUnfolderBase]: 79/185 cut-off events. [2024-11-07 19:40:20,740 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-11-07 19:40:20,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 185 events. 79/185 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 514 event pairs, 4 based on Foata normal form. 1/186 useless extension candidates. Maximal degree in co-relation 879. Up to 43 conditions per place. [2024-11-07 19:40:20,741 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 25 selfloop transitions, 7 changer transitions 46/79 dead transitions. [2024-11-07 19:40:20,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 79 transitions, 700 flow [2024-11-07 19:40:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 19:40:20,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 19:40:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 126 transitions. [2024-11-07 19:40:20,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.328125 [2024-11-07 19:40:20,742 INFO L175 Difference]: Start difference. First operand has 138 places, 50 transitions, 470 flow. Second operand 16 states and 126 transitions. [2024-11-07 19:40:20,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 79 transitions, 700 flow [2024-11-07 19:40:20,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 79 transitions, 648 flow, removed 2 selfloop flow, removed 16 redundant places. [2024-11-07 19:40:20,745 INFO L231 Difference]: Finished difference. Result has 131 places, 25 transitions, 181 flow [2024-11-07 19:40:20,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=181, PETRI_PLACES=131, PETRI_TRANSITIONS=25} [2024-11-07 19:40:20,746 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 105 predicate places. [2024-11-07 19:40:20,746 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 25 transitions, 181 flow [2024-11-07 19:40:20,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.393939393939394) internal successors, (178), 33 states have internal predecessors, (178), 0 states have call successors, (0), 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 19:40:20,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:40:20,746 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:40:20,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-07 19:40:20,946 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,SelfDestructingSolverStorable69 [2024-11-07 19:40:20,947 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 19:40:20,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:40:20,947 INFO L85 PathProgramCache]: Analyzing trace with hash -448538256, now seen corresponding path program 41 times [2024-11-07 19:40:20,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:40:20,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639834537] [2024-11-07 19:40:20,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:40:20,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:40:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:40:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:40:21,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:40:21,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639834537] [2024-11-07 19:40:21,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639834537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:40:21,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395723126] [2024-11-07 19:40:21,064 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:40:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:21,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:40:21,066 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 19:40:21,067 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 19:40:21,099 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-07 19:40:21,099 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:40:21,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 19:40:21,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:40:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 19:40:21,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:40:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395723126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:40:21,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 19:40:21,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-11-07 19:40:21,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529782042] [2024-11-07 19:40:21,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:40:21,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:40:21,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:40:21,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:40:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-07 19:40:21,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-07 19:40:21,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 25 transitions, 181 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 19:40:21,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:40:21,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-07 19:40:21,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:40:21,237 INFO L124 PetriNetUnfolderBase]: 26/67 cut-off events. [2024-11-07 19:40:21,237 INFO L125 PetriNetUnfolderBase]: For 209/209 co-relation queries the response was YES. [2024-11-07 19:40:21,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 67 events. 26/67 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 1 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 287. Up to 21 conditions per place. [2024-11-07 19:40:21,238 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2024-11-07 19:40:21,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 31 transitions, 254 flow [2024-11-07 19:40:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:40:21,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:40:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 64 transitions. [2024-11-07 19:40:21,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2962962962962963 [2024-11-07 19:40:21,238 INFO L175 Difference]: Start difference. First operand has 131 places, 25 transitions, 181 flow. Second operand 9 states and 64 transitions. [2024-11-07 19:40:21,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 31 transitions, 254 flow [2024-11-07 19:40:21,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 31 transitions, 178 flow, removed 10 selfloop flow, removed 31 redundant places. [2024-11-07 19:40:21,239 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-11-07 19:40:21,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-11-07 19:40:21,239 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 55 predicate places. [2024-11-07 19:40:21,239 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-11-07 19:40:21,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 19:40:21,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-07 19:40:21,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-07 19:40:21,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-07 19:40:21,242 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-07 19:40:21,254 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 19:40:21,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,43 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:40:21,447 INFO L407 BasicCegarLoop]: Path program histogram: [41, 20, 5, 5] [2024-11-07 19:40:21,449 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:40:21,449 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:40:21,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:40:21 BasicIcfg [2024-11-07 19:40:21,456 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:40:21,456 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:40:21,456 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:40:21,456 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:40:21,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:39:27" (3/4) ... [2024-11-07 19:40:21,458 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 19:40:21,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 19:40:21,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 19:40:21,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2024-11-07 19:40:21,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-07 19:40:21,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 19:40:21,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 19:40:21,527 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 19:40:21,527 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 19:40:21,528 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:40:21,530 INFO L158 Benchmark]: Toolchain (without parser) took 54381.68ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 92.1MB in the beginning and 499.9MB in the end (delta: -407.7MB). Peak memory consumption was 216.6MB. Max. memory is 16.1GB. [2024-11-07 19:40:21,530 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:40:21,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.88ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:40:21,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.78ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:40:21,531 INFO L158 Benchmark]: Boogie Preprocessor took 18.68ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:40:21,531 INFO L158 Benchmark]: RCFGBuilder took 276.01ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 60.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:40:21,531 INFO L158 Benchmark]: TraceAbstraction took 53851.34ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 60.2MB in the beginning and 504.0MB in the end (delta: -443.8MB). Peak memory consumption was 183.1MB. Max. memory is 16.1GB. [2024-11-07 19:40:21,531 INFO L158 Benchmark]: Witness Printer took 71.58ms. Allocated memory is still 746.6MB. Free memory was 504.0MB in the beginning and 499.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:40:21,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.88ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 80.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.78ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.68ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 276.01ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 60.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 53851.34ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 60.2MB in the beginning and 504.0MB in the end (delta: -443.8MB). Peak memory consumption was 183.1MB. Max. memory is 16.1GB. * Witness Printer took 71.58ms. Allocated memory is still 746.6MB. Free memory was 504.0MB in the beginning and 499.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 53.8s, OverallIterations: 71, TraceHistogramMax: 3, PathProgramHistogramMax: 41, EmptinessCheckTime: 0.0s, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4080 SdHoareTripleChecker+Valid, 11.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4020 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 794 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26400 IncrementalHoareTripleChecker+Invalid, 27194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 794 mSolverCounterUnsat, 14 mSDtfsCounter, 26400 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2707 GetRequests, 1199 SyntacticMatches, 11 SemanticMatches, 1497 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12357 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10194occurred in iteration=60, InterpolantAutomatonStates: 973, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 2172 NumberOfCodeBlocks, 2170 NumberOfCodeBlocksAsserted, 156 NumberOfCheckSat, 2735 ConstructedInterpolants, 0 QuantifiedInterpolants, 15248 SizeOfPredicates, 132 NumberOfNonLiveVariables, 4221 ConjunctsInSsa, 537 ConjunctsInUnsatCore, 149 InterpolantComputations, 36 PerfectInterpolantSequences, 133/471 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 19:40:21,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE