./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-figure3.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/popl20-figure3.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', '0d53ec9655ee282673b712b4a154821b0baa87dd23720a53d10f4e3f8ec015d6'] 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/popl20-figure3.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 0d53ec9655ee282673b712b4a154821b0baa87dd23720a53d10f4e3f8ec015d6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:34:14,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:34:14,405 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:34:14,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:34:14,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:34:14,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:34:14,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:34:14,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:34:14,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:34:14,440 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:34:14,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:34:14,440 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:34:14,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:34:14,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:34:14,441 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:34:14,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:34:14,442 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:34:14,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:34:14,442 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:34:14,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:34:14,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:34:14,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:34:14,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:34:14,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:34:14,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:34:14,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:34:14,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:34:14,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:34:14,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:34:14,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:34:14,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:34:14,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:34:14,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:34:14,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:34:14,446 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 -> 0d53ec9655ee282673b712b4a154821b0baa87dd23720a53d10f4e3f8ec015d6 [2024-11-07 19:34:14,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:34:14,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:34:14,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:34:14,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:34:14,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:34:14,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2024-11-07 19:34:15,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:34:16,174 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:34:16,175 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2024-11-07 19:34:16,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7248e4d8c/0ef54c2832aa450b8857e7be56ddb270/FLAG7a2315355 [2024-11-07 19:34:16,193 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7248e4d8c/0ef54c2832aa450b8857e7be56ddb270 [2024-11-07 19:34:16,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:34:16,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:34:16,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:34:16,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:34:16,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:34:16,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a692d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16, skipping insertion in model container [2024-11-07 19:34:16,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:34:16,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:34:16,348 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:34:16,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:34:16,373 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:34:16,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16 WrapperNode [2024-11-07 19:34:16,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:34:16,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:34:16,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:34:16,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:34:16,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,401 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2024-11-07 19:34:16,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:34:16,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:34:16,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:34:16,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:34:16,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,429 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 19:34:16,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:34:16,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:34:16,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:34:16,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:34:16,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (1/1) ... [2024-11-07 19:34:16,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:34:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:16,488 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 19:34:16,491 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 19:34:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:34:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 19:34:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 19:34:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 19:34:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 19:34:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:34:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:34:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:34:16,516 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 19:34:16,606 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:34:16,608 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:34:16,808 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:34:16,809 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:34:16,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:34:16,937 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:34:16,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:34:16 BoogieIcfgContainer [2024-11-07 19:34:16,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:34:16,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:34:16,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:34:16,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:34:16,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:34:16" (1/3) ... [2024-11-07 19:34:16,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d9012d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:34:16, skipping insertion in model container [2024-11-07 19:34:16,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:16" (2/3) ... [2024-11-07 19:34:16,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d9012d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:34:16, skipping insertion in model container [2024-11-07 19:34:16,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:34:16" (3/3) ... [2024-11-07 19:34:16,949 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2024-11-07 19:34:16,964 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:34:16,964 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:34:16,965 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:34:17,020 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 19:34:17,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2024-11-07 19:34:17,073 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-07 19:34:17,076 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:34:17,081 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 4. Compared 24 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 19:34:17,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2024-11-07 19:34:17,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-11-07 19:34:17,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:34:17,103 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;@1ae33a39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:34:17,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:34:17,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:34:17,111 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-07 19:34:17,112 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 19:34:17,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:17,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:17,113 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 19:34:17,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:17,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1762227889, now seen corresponding path program 1 times [2024-11-07 19:34:17,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:17,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55435804] [2024-11-07 19:34:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:17,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:17,411 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 19:34:17,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:17,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55435804] [2024-11-07 19:34:17,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55435804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:34:17,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:34:17,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 19:34:17,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170149508] [2024-11-07 19:34:17,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:34:17,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:34:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:34:17,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:34:17,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-07 19:34:17,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:17,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:17,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-07 19:34:17,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:17,562 INFO L124 PetriNetUnfolderBase]: 86/168 cut-off events. [2024-11-07 19:34:17,562 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-07 19:34:17,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 168 events. 86/168 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 500 event pairs, 32 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 297. Up to 108 conditions per place. [2024-11-07 19:34:17,568 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 21 selfloop transitions, 2 changer transitions 3/28 dead transitions. [2024-11-07 19:34:17,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 129 flow [2024-11-07 19:34:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:34:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:34:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-07 19:34:17,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-07 19:34:17,583 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 3 states and 44 transitions. [2024-11-07 19:34:17,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 129 flow [2024-11-07 19:34:17,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 28 transitions, 115 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:34:17,592 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 56 flow [2024-11-07 19:34:17,594 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-11-07 19:34:17,596 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2024-11-07 19:34:17,598 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 56 flow [2024-11-07 19:34:17,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:17,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:17,599 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:17,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:34:17,599 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 19:34:17,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:17,599 INFO L85 PathProgramCache]: Analyzing trace with hash -866629274, now seen corresponding path program 1 times [2024-11-07 19:34:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:17,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811871635] [2024-11-07 19:34:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:17,798 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 19:34:17,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:17,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811871635] [2024-11-07 19:34:17,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811871635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:34:17,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:34:17,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:34:17,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367618481] [2024-11-07 19:34:17,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:34:17,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:34:17,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:17,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:34:17,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:34:17,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:17,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:17,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:17,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:17,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:17,942 INFO L124 PetriNetUnfolderBase]: 107/215 cut-off events. [2024-11-07 19:34:17,942 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-07 19:34:17,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 215 events. 107/215 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 819 event pairs, 45 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 168. Up to 139 conditions per place. [2024-11-07 19:34:17,966 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 26 selfloop transitions, 7 changer transitions 3/40 dead transitions. [2024-11-07 19:34:17,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 40 transitions, 173 flow [2024-11-07 19:34:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:34:17,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:34:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2024-11-07 19:34:17,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5583333333333333 [2024-11-07 19:34:17,969 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 56 flow. Second operand 5 states and 67 transitions. [2024-11-07 19:34:17,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 40 transitions, 173 flow [2024-11-07 19:34:17,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 40 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:34:17,972 INFO L231 Difference]: Finished difference. Result has 29 places, 26 transitions, 106 flow [2024-11-07 19:34:17,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=29, PETRI_TRANSITIONS=26} [2024-11-07 19:34:17,973 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2024-11-07 19:34:17,974 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 106 flow [2024-11-07 19:34:17,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:17,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:17,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:17,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:34:17,975 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 19:34:17,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:17,976 INFO L85 PathProgramCache]: Analyzing trace with hash -929821614, now seen corresponding path program 2 times [2024-11-07 19:34:17,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:17,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893685693] [2024-11-07 19:34:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:17,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:18,132 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 19:34:18,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893685693] [2024-11-07 19:34:18,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893685693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:34:18,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:34:18,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:34:18,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662382331] [2024-11-07 19:34:18,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:34:18,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:34:18,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:18,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:34:18,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:34:18,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:18,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:18,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:18,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:18,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:18,344 INFO L124 PetriNetUnfolderBase]: 120/247 cut-off events. [2024-11-07 19:34:18,344 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-11-07 19:34:18,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 247 events. 120/247 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1019 event pairs, 4 based on Foata normal form. 9/254 useless extension candidates. Maximal degree in co-relation 303. Up to 100 conditions per place. [2024-11-07 19:34:18,351 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 40 selfloop transitions, 10 changer transitions 1/55 dead transitions. [2024-11-07 19:34:18,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 55 transitions, 315 flow [2024-11-07 19:34:18,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:34:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:34:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 90 transitions. [2024-11-07 19:34:18,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-07 19:34:18,353 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 106 flow. Second operand 7 states and 90 transitions. [2024-11-07 19:34:18,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 55 transitions, 315 flow [2024-11-07 19:34:18,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 55 transitions, 313 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-07 19:34:18,356 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 186 flow [2024-11-07 19:34:18,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=186, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-11-07 19:34:18,357 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2024-11-07 19:34:18,357 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 186 flow [2024-11-07 19:34:18,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:18,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:18,357 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:18,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:34:18,358 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 19:34:18,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:18,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1502350898, now seen corresponding path program 3 times [2024-11-07 19:34:18,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:18,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680871342] [2024-11-07 19:34:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:18,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:18,465 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 19:34:18,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:18,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680871342] [2024-11-07 19:34:18,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680871342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:34:18,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:34:18,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:34:18,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646656745] [2024-11-07 19:34:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:34:18,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:34:18,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:18,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:34:18,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:34:18,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:18,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:18,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:18,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:18,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:18,597 INFO L124 PetriNetUnfolderBase]: 159/327 cut-off events. [2024-11-07 19:34:18,597 INFO L125 PetriNetUnfolderBase]: For 638/644 co-relation queries the response was YES. [2024-11-07 19:34:18,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 327 events. 159/327 cut-off events. For 638/644 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1329 event pairs, 55 based on Foata normal form. 8/332 useless extension candidates. Maximal degree in co-relation 718. Up to 139 conditions per place. [2024-11-07 19:34:18,604 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 36 selfloop transitions, 10 changer transitions 2/52 dead transitions. [2024-11-07 19:34:18,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 52 transitions, 387 flow [2024-11-07 19:34:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:34:18,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:34:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2024-11-07 19:34:18,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-07 19:34:18,606 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 186 flow. Second operand 5 states and 65 transitions. [2024-11-07 19:34:18,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 52 transitions, 387 flow [2024-11-07 19:34:18,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:34:18,611 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 241 flow [2024-11-07 19:34:18,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2024-11-07 19:34:18,612 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 20 predicate places. [2024-11-07 19:34:18,614 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 241 flow [2024-11-07 19:34:18,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:18,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:18,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:18,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:34:18,615 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 19:34:18,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:18,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1419935380, now seen corresponding path program 4 times [2024-11-07 19:34:18,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:18,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139778647] [2024-11-07 19:34:18,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:18,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:18,771 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 19:34:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:18,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139778647] [2024-11-07 19:34:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139778647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:18,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246502695] [2024-11-07 19:34:18,772 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:34:18,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:18,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:18,775 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 19:34:18,777 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 19:34:18,833 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:34:18,833 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:18,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:34:18,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:18,897 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 19:34:18,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:18,964 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 19:34:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246502695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:18,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:18,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 8 [2024-11-07 19:34:18,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398442578] [2024-11-07 19:34:18,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:18,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 19:34:18,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:18,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 19:34:18,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 19:34:18,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:18,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 241 flow. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:18,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:18,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:18,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:19,206 INFO L124 PetriNetUnfolderBase]: 232/471 cut-off events. [2024-11-07 19:34:19,207 INFO L125 PetriNetUnfolderBase]: For 1306/1310 co-relation queries the response was YES. [2024-11-07 19:34:19,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 471 events. 232/471 cut-off events. For 1306/1310 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2211 event pairs, 33 based on Foata normal form. 13/482 useless extension candidates. Maximal degree in co-relation 1244. Up to 161 conditions per place. [2024-11-07 19:34:19,211 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 41 selfloop transitions, 31 changer transitions 2/78 dead transitions. [2024-11-07 19:34:19,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 78 transitions, 636 flow [2024-11-07 19:34:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:34:19,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:34:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 126 transitions. [2024-11-07 19:34:19,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-07 19:34:19,216 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 241 flow. Second operand 10 states and 126 transitions. [2024-11-07 19:34:19,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 78 transitions, 636 flow [2024-11-07 19:34:19,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 78 transitions, 612 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-07 19:34:19,221 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 464 flow [2024-11-07 19:34:19,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=464, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2024-11-07 19:34:19,222 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 32 predicate places. [2024-11-07 19:34:19,222 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 464 flow [2024-11-07 19:34:19,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:19,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:19,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:19,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 19:34:19,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:19,427 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 19:34:19,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:19,427 INFO L85 PathProgramCache]: Analyzing trace with hash 144495532, now seen corresponding path program 5 times [2024-11-07 19:34:19,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:19,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563195262] [2024-11-07 19:34:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:19,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:19,538 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 19:34:19,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:19,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563195262] [2024-11-07 19:34:19,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563195262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:34:19,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:34:19,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:34:19,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790941915] [2024-11-07 19:34:19,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:34:19,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:34:19,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:34:19,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:34:19,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:19,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 464 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:19,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:19,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:19,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:19,654 INFO L124 PetriNetUnfolderBase]: 221/439 cut-off events. [2024-11-07 19:34:19,654 INFO L125 PetriNetUnfolderBase]: For 2605/2609 co-relation queries the response was YES. [2024-11-07 19:34:19,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2097 conditions, 439 events. 221/439 cut-off events. For 2605/2609 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1946 event pairs, 58 based on Foata normal form. 2/438 useless extension candidates. Maximal degree in co-relation 1612. Up to 189 conditions per place. [2024-11-07 19:34:19,660 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 41 selfloop transitions, 17 changer transitions 1/63 dead transitions. [2024-11-07 19:34:19,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 63 transitions, 685 flow [2024-11-07 19:34:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:34:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:34:19,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2024-11-07 19:34:19,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-07 19:34:19,662 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 464 flow. Second operand 5 states and 63 transitions. [2024-11-07 19:34:19,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 63 transitions, 685 flow [2024-11-07 19:34:19,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 618 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-11-07 19:34:19,669 INFO L231 Difference]: Finished difference. Result has 60 places, 53 transitions, 483 flow [2024-11-07 19:34:19,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=483, PETRI_PLACES=60, PETRI_TRANSITIONS=53} [2024-11-07 19:34:19,671 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 34 predicate places. [2024-11-07 19:34:19,671 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 53 transitions, 483 flow [2024-11-07 19:34:19,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:19,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:19,672 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:19,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:34:19,672 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 19:34:19,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1770166318, now seen corresponding path program 6 times [2024-11-07 19:34:19,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:19,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852998215] [2024-11-07 19:34:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:19,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:19,765 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 19:34:19,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:19,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852998215] [2024-11-07 19:34:19,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852998215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:34:19,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:34:19,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:34:19,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58589887] [2024-11-07 19:34:19,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:34:19,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:34:19,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:19,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:34:19,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:34:19,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:19,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 483 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:19,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:19,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:19,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:19,887 INFO L124 PetriNetUnfolderBase]: 222/444 cut-off events. [2024-11-07 19:34:19,888 INFO L125 PetriNetUnfolderBase]: For 2603/2603 co-relation queries the response was YES. [2024-11-07 19:34:19,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2031 conditions, 444 events. 222/444 cut-off events. For 2603/2603 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1973 event pairs, 60 based on Foata normal form. 7/448 useless extension candidates. Maximal degree in co-relation 1651. Up to 171 conditions per place. [2024-11-07 19:34:19,892 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 40 selfloop transitions, 22 changer transitions 0/66 dead transitions. [2024-11-07 19:34:19,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 670 flow [2024-11-07 19:34:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:34:19,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:34:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2024-11-07 19:34:19,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5069444444444444 [2024-11-07 19:34:19,893 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 483 flow. Second operand 6 states and 73 transitions. [2024-11-07 19:34:19,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 670 flow [2024-11-07 19:34:19,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 630 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-07 19:34:19,900 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 503 flow [2024-11-07 19:34:19,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=503, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-11-07 19:34:19,901 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 35 predicate places. [2024-11-07 19:34:19,901 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 503 flow [2024-11-07 19:34:19,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:19,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:19,902 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 19:34:19,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:34:19,902 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 19:34:19,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1128899502, now seen corresponding path program 1 times [2024-11-07 19:34:19,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:19,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811154532] [2024-11-07 19:34:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:20,004 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 19:34:20,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:20,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811154532] [2024-11-07 19:34:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811154532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:20,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570200138] [2024-11-07 19:34:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:20,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:20,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:20,008 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 19:34:20,011 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 19:34:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:20,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 19:34:20,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:34:20,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:34:20,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570200138] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:20,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:20,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 6 [2024-11-07 19:34:20,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480071666] [2024-11-07 19:34:20,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:20,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:34:20,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:20,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:34:20,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:34:20,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-07 19:34:20,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 503 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:20,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:20,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-07 19:34:20,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:20,358 INFO L124 PetriNetUnfolderBase]: 514/948 cut-off events. [2024-11-07 19:34:20,359 INFO L125 PetriNetUnfolderBase]: For 4533/4561 co-relation queries the response was YES. [2024-11-07 19:34:20,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4204 conditions, 948 events. 514/948 cut-off events. For 4533/4561 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4602 event pairs, 104 based on Foata normal form. 12/957 useless extension candidates. Maximal degree in co-relation 2799. Up to 441 conditions per place. [2024-11-07 19:34:20,367 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 78 selfloop transitions, 5 changer transitions 8/98 dead transitions. [2024-11-07 19:34:20,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 98 transitions, 1056 flow [2024-11-07 19:34:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:34:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:34:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2024-11-07 19:34:20,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-07 19:34:20,369 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 503 flow. Second operand 4 states and 64 transitions. [2024-11-07 19:34:20,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 98 transitions, 1056 flow [2024-11-07 19:34:20,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 98 transitions, 998 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 19:34:20,378 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 490 flow [2024-11-07 19:34:20,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=490, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2024-11-07 19:34:20,379 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 36 predicate places. [2024-11-07 19:34:20,379 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 490 flow [2024-11-07 19:34:20,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:20,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:20,379 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:20,397 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 19:34:20,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:20,585 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 19:34:20,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:20,585 INFO L85 PathProgramCache]: Analyzing trace with hash 977072945, now seen corresponding path program 2 times [2024-11-07 19:34:20,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:20,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504113387] [2024-11-07 19:34:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:20,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:20,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504113387] [2024-11-07 19:34:20,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504113387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:20,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682959996] [2024-11-07 19:34:20,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:34:20,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:20,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:20,722 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 19:34:20,723 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 19:34:20,775 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:34:20,775 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:20,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:20,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:20,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:20,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682959996] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:20,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:20,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:34:20,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139620565] [2024-11-07 19:34:20,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:20,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:34:20,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:20,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:34:20,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:34:20,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:20,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 490 flow. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 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 19:34:20,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:20,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:20,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:22,215 INFO L124 PetriNetUnfolderBase]: 1025/1905 cut-off events. [2024-11-07 19:34:22,216 INFO L125 PetriNetUnfolderBase]: For 9443/9465 co-relation queries the response was YES. [2024-11-07 19:34:22,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8925 conditions, 1905 events. 1025/1905 cut-off events. For 9443/9465 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 10292 event pairs, 50 based on Foata normal form. 123/2022 useless extension candidates. Maximal degree in co-relation 5038. Up to 584 conditions per place. [2024-11-07 19:34:22,234 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 113 selfloop transitions, 134 changer transitions 8/262 dead transitions. [2024-11-07 19:34:22,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 262 transitions, 2611 flow [2024-11-07 19:34:22,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-07 19:34:22,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-07 19:34:22,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 493 transitions. [2024-11-07 19:34:22,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47771317829457366 [2024-11-07 19:34:22,238 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 490 flow. Second operand 43 states and 493 transitions. [2024-11-07 19:34:22,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 262 transitions, 2611 flow [2024-11-07 19:34:22,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 262 transitions, 2611 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 19:34:22,254 INFO L231 Difference]: Finished difference. Result has 115 places, 170 transitions, 1983 flow [2024-11-07 19:34:22,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=1983, PETRI_PLACES=115, PETRI_TRANSITIONS=170} [2024-11-07 19:34:22,255 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 89 predicate places. [2024-11-07 19:34:22,255 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 170 transitions, 1983 flow [2024-11-07 19:34:22,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 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 19:34:22,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:22,255 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:22,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 19:34:22,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:22,456 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 19:34:22,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:22,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1344827249, now seen corresponding path program 3 times [2024-11-07 19:34:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:22,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848093428] [2024-11-07 19:34:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:22,607 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:22,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:22,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848093428] [2024-11-07 19:34:22,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848093428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:22,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20447176] [2024-11-07 19:34:22,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:34:22,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:22,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:22,609 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 19:34:22,611 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 19:34:22,665 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-07 19:34:22,666 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:22,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:22,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:22,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20447176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:22,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:34:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334093361] [2024-11-07 19:34:22,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:22,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:34:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:34:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:34:22,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:22,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 170 transitions, 1983 flow. Second operand has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 19:34:22,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:22,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:22,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:23,326 INFO L124 PetriNetUnfolderBase]: 1088/2041 cut-off events. [2024-11-07 19:34:23,327 INFO L125 PetriNetUnfolderBase]: For 22020/22088 co-relation queries the response was YES. [2024-11-07 19:34:23,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11965 conditions, 2041 events. 1088/2041 cut-off events. For 22020/22088 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11514 event pairs, 160 based on Foata normal form. 72/2107 useless extension candidates. Maximal degree in co-relation 11474. Up to 867 conditions per place. [2024-11-07 19:34:23,352 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 129 selfloop transitions, 94 changer transitions 11/241 dead transitions. [2024-11-07 19:34:23,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 241 transitions, 3186 flow [2024-11-07 19:34:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 19:34:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-07 19:34:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 175 transitions. [2024-11-07 19:34:23,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-11-07 19:34:23,353 INFO L175 Difference]: Start difference. First operand has 115 places, 170 transitions, 1983 flow. Second operand 15 states and 175 transitions. [2024-11-07 19:34:23,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 241 transitions, 3186 flow [2024-11-07 19:34:23,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 241 transitions, 2494 flow, removed 322 selfloop flow, removed 7 redundant places. [2024-11-07 19:34:23,453 INFO L231 Difference]: Finished difference. Result has 131 places, 196 transitions, 2045 flow [2024-11-07 19:34:23,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2045, PETRI_PLACES=131, PETRI_TRANSITIONS=196} [2024-11-07 19:34:23,454 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 105 predicate places. [2024-11-07 19:34:23,454 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 196 transitions, 2045 flow [2024-11-07 19:34:23,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 19:34:23,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:23,454 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:23,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 19:34:23,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 19:34:23,660 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 19:34:23,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:23,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1853609165, now seen corresponding path program 4 times [2024-11-07 19:34:23,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:23,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155184235] [2024-11-07 19:34:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:23,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:23,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155184235] [2024-11-07 19:34:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155184235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400403586] [2024-11-07 19:34:23,778 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:34:23,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:23,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:23,781 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 19:34:23,782 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 19:34:23,835 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:34:23,835 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:23,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:23,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:23,904 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 19:34:23,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:23,983 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 19:34:23,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400403586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:23,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:23,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-07 19:34:23,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590980614] [2024-11-07 19:34:23,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:23,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 19:34:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:23,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 19:34:23,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-07 19:34:23,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:23,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 196 transitions, 2045 flow. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:23,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:23,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:23,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:24,773 INFO L124 PetriNetUnfolderBase]: 1399/2621 cut-off events. [2024-11-07 19:34:24,773 INFO L125 PetriNetUnfolderBase]: For 23190/23210 co-relation queries the response was YES. [2024-11-07 19:34:24,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14078 conditions, 2621 events. 1399/2621 cut-off events. For 23190/23210 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 15643 event pairs, 39 based on Foata normal form. 34/2639 useless extension candidates. Maximal degree in co-relation 13794. Up to 588 conditions per place. [2024-11-07 19:34:24,806 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 109 selfloop transitions, 293 changer transitions 1/410 dead transitions. [2024-11-07 19:34:24,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 410 transitions, 4945 flow [2024-11-07 19:34:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 19:34:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 19:34:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 250 transitions. [2024-11-07 19:34:24,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4734848484848485 [2024-11-07 19:34:24,809 INFO L175 Difference]: Start difference. First operand has 131 places, 196 transitions, 2045 flow. Second operand 22 states and 250 transitions. [2024-11-07 19:34:24,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 410 transitions, 4945 flow [2024-11-07 19:34:24,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 410 transitions, 4797 flow, removed 40 selfloop flow, removed 7 redundant places. [2024-11-07 19:34:24,894 INFO L231 Difference]: Finished difference. Result has 153 places, 351 transitions, 4562 flow [2024-11-07 19:34:24,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1963, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4562, PETRI_PLACES=153, PETRI_TRANSITIONS=351} [2024-11-07 19:34:24,894 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 127 predicate places. [2024-11-07 19:34:24,894 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 351 transitions, 4562 flow [2024-11-07 19:34:24,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:24,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:24,895 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:24,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 19:34:25,098 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,SelfDestructingSolverStorable10 [2024-11-07 19:34:25,099 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 19:34:25,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash -640440343, now seen corresponding path program 5 times [2024-11-07 19:34:25,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:25,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682214745] [2024-11-07 19:34:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:25,244 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 19:34:25,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:25,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682214745] [2024-11-07 19:34:25,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682214745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:25,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663557770] [2024-11-07 19:34:25,245 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:34:25,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:25,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:25,247 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 19:34:25,249 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 19:34:25,299 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:34:25,299 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:25,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:34:25,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:25,451 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 19:34:25,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:25,596 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 19:34:25,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663557770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:25,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:25,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-07 19:34:25,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408369086] [2024-11-07 19:34:25,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:25,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:34:25,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:34:25,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:34:25,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:25,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 351 transitions, 4562 flow. Second operand has 17 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:25,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:25,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:25,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:27,157 INFO L124 PetriNetUnfolderBase]: 2057/3864 cut-off events. [2024-11-07 19:34:27,157 INFO L125 PetriNetUnfolderBase]: For 48010/48058 co-relation queries the response was YES. [2024-11-07 19:34:27,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24312 conditions, 3864 events. 2057/3864 cut-off events. For 48010/48058 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 25260 event pairs, 69 based on Foata normal form. 109/3951 useless extension candidates. Maximal degree in co-relation 24000. Up to 916 conditions per place. [2024-11-07 19:34:27,213 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 130 selfloop transitions, 486 changer transitions 1/624 dead transitions. [2024-11-07 19:34:27,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 624 transitions, 9183 flow [2024-11-07 19:34:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-07 19:34:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-07 19:34:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 367 transitions. [2024-11-07 19:34:27,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4497549019607843 [2024-11-07 19:34:27,216 INFO L175 Difference]: Start difference. First operand has 153 places, 351 transitions, 4562 flow. Second operand 34 states and 367 transitions. [2024-11-07 19:34:27,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 624 transitions, 9183 flow [2024-11-07 19:34:27,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 624 transitions, 8297 flow, removed 342 selfloop flow, removed 3 redundant places. [2024-11-07 19:34:27,512 INFO L231 Difference]: Finished difference. Result has 200 places, 538 transitions, 8087 flow [2024-11-07 19:34:27,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4162, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=295, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=8087, PETRI_PLACES=200, PETRI_TRANSITIONS=538} [2024-11-07 19:34:27,512 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 174 predicate places. [2024-11-07 19:34:27,513 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 538 transitions, 8087 flow [2024-11-07 19:34:27,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:27,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:27,513 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:27,525 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 19:34:27,714 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,SelfDestructingSolverStorable11 [2024-11-07 19:34:27,714 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 19:34:27,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1969289697, now seen corresponding path program 6 times [2024-11-07 19:34:27,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:27,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555581167] [2024-11-07 19:34:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:27,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:27,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:27,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555581167] [2024-11-07 19:34:27,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555581167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:27,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736528691] [2024-11-07 19:34:27,897 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:34:27,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:27,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:27,899 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 19:34:27,901 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 19:34:27,953 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-07 19:34:27,953 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:27,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:27,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:28,029 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 19:34:28,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:28,117 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 19:34:28,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736528691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:28,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:28,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-07 19:34:28,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643518160] [2024-11-07 19:34:28,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:28,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:34:28,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:28,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:34:28,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:34:28,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:28,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 538 transitions, 8087 flow. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 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 19:34:28,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:28,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:28,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:29,497 INFO L124 PetriNetUnfolderBase]: 2379/4524 cut-off events. [2024-11-07 19:34:29,498 INFO L125 PetriNetUnfolderBase]: For 61601/61647 co-relation queries the response was YES. [2024-11-07 19:34:29,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30340 conditions, 4524 events. 2379/4524 cut-off events. For 61601/61647 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 30927 event pairs, 107 based on Foata normal form. 60/4562 useless extension candidates. Maximal degree in co-relation 29170. Up to 832 conditions per place. [2024-11-07 19:34:29,543 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 158 selfloop transitions, 560 changer transitions 2/727 dead transitions. [2024-11-07 19:34:29,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 727 transitions, 12165 flow [2024-11-07 19:34:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-07 19:34:29,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-07 19:34:29,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 366 transitions. [2024-11-07 19:34:29,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4621212121212121 [2024-11-07 19:34:29,548 INFO L175 Difference]: Start difference. First operand has 200 places, 538 transitions, 8087 flow. Second operand 33 states and 366 transitions. [2024-11-07 19:34:29,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 727 transitions, 12165 flow [2024-11-07 19:34:30,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 727 transitions, 11398 flow, removed 182 selfloop flow, removed 7 redundant places. [2024-11-07 19:34:30,100 INFO L231 Difference]: Finished difference. Result has 234 places, 649 transitions, 10833 flow [2024-11-07 19:34:30,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7462, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=10833, PETRI_PLACES=234, PETRI_TRANSITIONS=649} [2024-11-07 19:34:30,101 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 208 predicate places. [2024-11-07 19:34:30,101 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 649 transitions, 10833 flow [2024-11-07 19:34:30,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 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 19:34:30,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:30,101 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:30,113 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 19:34:30,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:30,302 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 19:34:30,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1371433279, now seen corresponding path program 7 times [2024-11-07 19:34:30,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:30,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161131965] [2024-11-07 19:34:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:30,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:30,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161131965] [2024-11-07 19:34:30,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161131965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493406087] [2024-11-07 19:34:30,416 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:34:30,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:30,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:30,419 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 19:34:30,421 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 19:34:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:30,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:30,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:30,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:30,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493406087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:30,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:30,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-07 19:34:30,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012176912] [2024-11-07 19:34:30,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:30,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:34:30,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:34:30,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:34:30,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:30,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 649 transitions, 10833 flow. Second operand has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 14 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:30,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:30,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:30,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:31,828 INFO L124 PetriNetUnfolderBase]: 2713/5080 cut-off events. [2024-11-07 19:34:31,828 INFO L125 PetriNetUnfolderBase]: For 83085/83143 co-relation queries the response was YES. [2024-11-07 19:34:31,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37030 conditions, 5080 events. 2713/5080 cut-off events. For 83085/83143 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 34753 event pairs, 227 based on Foata normal form. 68/5128 useless extension candidates. Maximal degree in co-relation 36498. Up to 1155 conditions per place. [2024-11-07 19:34:31,885 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 252 selfloop transitions, 531 changer transitions 3/793 dead transitions. [2024-11-07 19:34:31,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 793 transitions, 14729 flow [2024-11-07 19:34:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 19:34:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 19:34:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 276 transitions. [2024-11-07 19:34:31,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 19:34:31,887 INFO L175 Difference]: Start difference. First operand has 234 places, 649 transitions, 10833 flow. Second operand 23 states and 276 transitions. [2024-11-07 19:34:31,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 793 transitions, 14729 flow [2024-11-07 19:34:32,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 793 transitions, 14609 flow, removed 47 selfloop flow, removed 3 redundant places. [2024-11-07 19:34:32,576 INFO L231 Difference]: Finished difference. Result has 253 places, 723 transitions, 13322 flow [2024-11-07 19:34:32,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=10606, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=13322, PETRI_PLACES=253, PETRI_TRANSITIONS=723} [2024-11-07 19:34:32,577 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 227 predicate places. [2024-11-07 19:34:32,577 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 723 transitions, 13322 flow [2024-11-07 19:34:32,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 14 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:32,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:32,577 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:32,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 19:34:32,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:32,778 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 19:34:32,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:32,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1795947619, now seen corresponding path program 8 times [2024-11-07 19:34:32,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:32,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400043598] [2024-11-07 19:34:32,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:32,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:32,910 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 19:34:32,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:32,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400043598] [2024-11-07 19:34:32,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400043598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:32,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356035510] [2024-11-07 19:34:32,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:34:32,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:32,913 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 19:34:32,914 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 19:34:32,962 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:34:32,962 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:32,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:32,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:33,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:33,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356035510] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:33,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:33,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-07 19:34:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063842715] [2024-11-07 19:34:33,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:33,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:34:33,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:33,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:34:33,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:34:33,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:33,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 723 transitions, 13322 flow. Second operand has 16 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:33,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:33,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:33,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:34,488 INFO L124 PetriNetUnfolderBase]: 3322/6226 cut-off events. [2024-11-07 19:34:34,488 INFO L125 PetriNetUnfolderBase]: For 113363/113405 co-relation queries the response was YES. [2024-11-07 19:34:34,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47848 conditions, 6226 events. 3322/6226 cut-off events. For 113363/113405 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 43784 event pairs, 241 based on Foata normal form. 64/6262 useless extension candidates. Maximal degree in co-relation 47483. Up to 1304 conditions per place. [2024-11-07 19:34:34,552 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 205 selfloop transitions, 746 changer transitions 5/963 dead transitions. [2024-11-07 19:34:34,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 963 transitions, 19443 flow [2024-11-07 19:34:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-07 19:34:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-07 19:34:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 280 transitions. [2024-11-07 19:34:34,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-07 19:34:34,554 INFO L175 Difference]: Start difference. First operand has 253 places, 723 transitions, 13322 flow. Second operand 25 states and 280 transitions. [2024-11-07 19:34:34,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 963 transitions, 19443 flow [2024-11-07 19:34:35,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 963 transitions, 18878 flow, removed 190 selfloop flow, removed 6 redundant places. [2024-11-07 19:34:35,552 INFO L231 Difference]: Finished difference. Result has 281 places, 914 transitions, 19437 flow [2024-11-07 19:34:35,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=12887, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=578, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=19437, PETRI_PLACES=281, PETRI_TRANSITIONS=914} [2024-11-07 19:34:35,553 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 255 predicate places. [2024-11-07 19:34:35,553 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 914 transitions, 19437 flow [2024-11-07 19:34:35,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:34:35,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:35,553 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:35,565 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 19:34:35,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:35,754 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 19:34:35,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash -838480983, now seen corresponding path program 9 times [2024-11-07 19:34:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:35,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888297495] [2024-11-07 19:34:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:35,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:35,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888297495] [2024-11-07 19:34:35,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888297495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:35,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111176205] [2024-11-07 19:34:35,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:34:35,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:35,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:35,884 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 19:34:35,885 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 19:34:35,939 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-07 19:34:35,939 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:35,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:35,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:36,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:36,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111176205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:36,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:36,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:34:36,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347970442] [2024-11-07 19:34:36,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:36,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:34:36,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:36,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:34:36,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:34:36,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:36,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 914 transitions, 19437 flow. Second operand has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 19:34:36,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:36,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:36,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:37,373 INFO L124 PetriNetUnfolderBase]: 3314/6210 cut-off events. [2024-11-07 19:34:37,373 INFO L125 PetriNetUnfolderBase]: For 138559/138609 co-relation queries the response was YES. [2024-11-07 19:34:37,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52946 conditions, 6210 events. 3314/6210 cut-off events. For 138559/138609 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 43916 event pairs, 483 based on Foata normal form. 44/6222 useless extension candidates. Maximal degree in co-relation 52500. Up to 2446 conditions per place. [2024-11-07 19:34:37,437 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 411 selfloop transitions, 517 changer transitions 4/939 dead transitions. [2024-11-07 19:34:37,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 939 transitions, 21491 flow [2024-11-07 19:34:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:34:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:34:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 164 transitions. [2024-11-07 19:34:37,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-11-07 19:34:37,438 INFO L175 Difference]: Start difference. First operand has 281 places, 914 transitions, 19437 flow. Second operand 14 states and 164 transitions. [2024-11-07 19:34:37,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 939 transitions, 21491 flow [2024-11-07 19:34:38,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 939 transitions, 21138 flow, removed 119 selfloop flow, removed 10 redundant places. [2024-11-07 19:34:38,614 INFO L231 Difference]: Finished difference. Result has 285 places, 912 transitions, 20102 flow [2024-11-07 19:34:38,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=19042, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=912, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20102, PETRI_PLACES=285, PETRI_TRANSITIONS=912} [2024-11-07 19:34:38,615 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 259 predicate places. [2024-11-07 19:34:38,615 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 912 transitions, 20102 flow [2024-11-07 19:34:38,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 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 19:34:38,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:38,616 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:38,626 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 19:34:38,816 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,SelfDestructingSolverStorable15 [2024-11-07 19:34:38,816 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 19:34:38,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1396494807, now seen corresponding path program 10 times [2024-11-07 19:34:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:38,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122341903] [2024-11-07 19:34:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:38,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:38,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:38,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122341903] [2024-11-07 19:34:38,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122341903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:38,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284309806] [2024-11-07 19:34:38,931 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:34:38,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:38,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:38,934 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 19:34:38,935 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 19:34:38,980 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:34:38,981 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:38,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:38,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:39,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:39,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284309806] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:39,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:39,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:34:39,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126025733] [2024-11-07 19:34:39,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:39,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:34:39,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:39,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:34:39,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:34:39,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:39,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 912 transitions, 20102 flow. Second operand has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 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 19:34:39,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:39,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:39,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:40,513 INFO L124 PetriNetUnfolderBase]: 3385/6325 cut-off events. [2024-11-07 19:34:40,513 INFO L125 PetriNetUnfolderBase]: For 136845/136895 co-relation queries the response was YES. [2024-11-07 19:34:40,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55347 conditions, 6325 events. 3385/6325 cut-off events. For 136845/136895 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 44354 event pairs, 868 based on Foata normal form. 36/6322 useless extension candidates. Maximal degree in co-relation 55163. Up to 4370 conditions per place. [2024-11-07 19:34:40,687 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 805 selfloop transitions, 158 changer transitions 7/977 dead transitions. [2024-11-07 19:34:40,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 977 transitions, 23241 flow [2024-11-07 19:34:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 19:34:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-07 19:34:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 148 transitions. [2024-11-07 19:34:40,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2024-11-07 19:34:40,688 INFO L175 Difference]: Start difference. First operand has 285 places, 912 transitions, 20102 flow. Second operand 14 states and 148 transitions. [2024-11-07 19:34:40,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 977 transitions, 23241 flow [2024-11-07 19:34:41,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 977 transitions, 22427 flow, removed 16 selfloop flow, removed 11 redundant places. [2024-11-07 19:34:41,921 INFO L231 Difference]: Finished difference. Result has 291 places, 938 transitions, 20440 flow [2024-11-07 19:34:41,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=19330, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=912, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=765, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20440, PETRI_PLACES=291, PETRI_TRANSITIONS=938} [2024-11-07 19:34:41,922 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 265 predicate places. [2024-11-07 19:34:41,922 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 938 transitions, 20440 flow [2024-11-07 19:34:41,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 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 19:34:41,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:41,922 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:41,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 19:34:42,122 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,SelfDestructingSolverStorable16 [2024-11-07 19:34:42,123 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 19:34:42,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:42,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2041918991, now seen corresponding path program 11 times [2024-11-07 19:34:42,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693612657] [2024-11-07 19:34:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:42,242 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 19:34:42,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:42,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693612657] [2024-11-07 19:34:42,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693612657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:42,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839714284] [2024-11-07 19:34:42,243 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:34:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:42,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:42,246 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 19:34:42,248 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 19:34:42,310 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-07 19:34:42,310 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:42,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:42,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:42,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:42,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839714284] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:42,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:42,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:34:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310722455] [2024-11-07 19:34:42,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:42,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:34:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:42,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:34:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:34:42,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:42,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 938 transitions, 20440 flow. Second operand has 15 states, 15 states have (on average 8.333333333333334) internal successors, (125), 15 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 19:34:42,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:42,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:42,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:47,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:34:48,893 INFO L124 PetriNetUnfolderBase]: 4652/8697 cut-off events. [2024-11-07 19:34:48,894 INFO L125 PetriNetUnfolderBase]: For 189224/189278 co-relation queries the response was YES. [2024-11-07 19:34:48,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76191 conditions, 8697 events. 4652/8697 cut-off events. For 189224/189278 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 64217 event pairs, 485 based on Foata normal form. 132/8782 useless extension candidates. Maximal degree in co-relation 75938. Up to 2632 conditions per place. [2024-11-07 19:34:49,021 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 753 selfloop transitions, 716 changer transitions 1/1477 dead transitions. [2024-11-07 19:34:49,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1477 transitions, 34581 flow [2024-11-07 19:34:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 19:34:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-07 19:34:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 403 transitions. [2024-11-07 19:34:49,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4664351851851852 [2024-11-07 19:34:49,023 INFO L175 Difference]: Start difference. First operand has 291 places, 938 transitions, 20440 flow. Second operand 36 states and 403 transitions. [2024-11-07 19:34:49,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1477 transitions, 34581 flow [2024-11-07 19:34:51,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1477 transitions, 34472 flow, removed 42 selfloop flow, removed 6 redundant places. [2024-11-07 19:34:51,633 INFO L231 Difference]: Finished difference. Result has 338 places, 1281 transitions, 31295 flow [2024-11-07 19:34:51,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=20298, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=31295, PETRI_PLACES=338, PETRI_TRANSITIONS=1281} [2024-11-07 19:34:51,635 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 312 predicate places. [2024-11-07 19:34:51,635 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 1281 transitions, 31295 flow [2024-11-07 19:34:51,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.333333333333334) internal successors, (125), 15 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 19:34:51,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:51,635 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:51,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 19:34:51,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 19:34:51,840 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 19:34:51,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1156692187, now seen corresponding path program 12 times [2024-11-07 19:34:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:51,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343025986] [2024-11-07 19:34:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:51,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:51,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:51,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343025986] [2024-11-07 19:34:51,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343025986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:51,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189693687] [2024-11-07 19:34:51,937 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:34:51,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:51,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:51,940 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 19:34:51,941 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 19:34:51,987 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-07 19:34:51,987 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:34:51,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:51,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:52,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:52,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:52,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189693687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:52,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:52,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:34:52,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499117859] [2024-11-07 19:34:52,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:52,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:34:52,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:52,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:34:52,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:34:52,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:52,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 1281 transitions, 31295 flow. Second operand has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 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 19:34:52,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:52,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:52,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:34:55,118 INFO L124 PetriNetUnfolderBase]: 5964/11079 cut-off events. [2024-11-07 19:34:55,118 INFO L125 PetriNetUnfolderBase]: For 314035/314101 co-relation queries the response was YES. [2024-11-07 19:34:55,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105517 conditions, 11079 events. 5964/11079 cut-off events. For 314035/314101 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 84637 event pairs, 1078 based on Foata normal form. 40/11050 useless extension candidates. Maximal degree in co-relation 105228. Up to 5719 conditions per place. [2024-11-07 19:34:55,305 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 899 selfloop transitions, 834 changer transitions 0/1740 dead transitions. [2024-11-07 19:34:55,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1740 transitions, 45513 flow [2024-11-07 19:34:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 19:34:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 19:34:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 230 transitions. [2024-11-07 19:34:55,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-11-07 19:34:55,306 INFO L175 Difference]: Start difference. First operand has 338 places, 1281 transitions, 31295 flow. Second operand 20 states and 230 transitions. [2024-11-07 19:34:55,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 1740 transitions, 45513 flow [2024-11-07 19:34:59,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1740 transitions, 44864 flow, removed 261 selfloop flow, removed 5 redundant places. [2024-11-07 19:34:59,297 INFO L231 Difference]: Finished difference. Result has 360 places, 1679 transitions, 43253 flow [2024-11-07 19:34:59,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=30810, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43253, PETRI_PLACES=360, PETRI_TRANSITIONS=1679} [2024-11-07 19:34:59,299 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 334 predicate places. [2024-11-07 19:34:59,299 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 1679 transitions, 43253 flow [2024-11-07 19:34:59,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 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 19:34:59,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:34:59,299 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:34:59,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 19:34:59,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:59,500 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 19:34:59,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:34:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash 55832531, now seen corresponding path program 13 times [2024-11-07 19:34:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:34:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339614655] [2024-11-07 19:34:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:34:59,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:34:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:59,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:34:59,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339614655] [2024-11-07 19:34:59,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339614655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:34:59,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427876295] [2024-11-07 19:34:59,623 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:34:59,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:34:59,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:34:59,625 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 19:34:59,632 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 19:34:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:34:59,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:34:59,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:34:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:59,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:34:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:34:59,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427876295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:34:59,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:34:59,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-07 19:34:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212767004] [2024-11-07 19:34:59,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:34:59,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:34:59,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:34:59,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:34:59,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:34:59,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:34:59,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 1679 transitions, 43253 flow. Second operand has 16 states, 16 states have (on average 8.3125) internal successors, (133), 16 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 19:34:59,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:34:59,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:34:59,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:35:04,252 INFO L124 PetriNetUnfolderBase]: 6562/12198 cut-off events. [2024-11-07 19:35:04,252 INFO L125 PetriNetUnfolderBase]: For 369938/369986 co-relation queries the response was YES. [2024-11-07 19:35:04,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121937 conditions, 12198 events. 6562/12198 cut-off events. For 369938/369986 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 94688 event pairs, 685 based on Foata normal form. 41/12164 useless extension candidates. Maximal degree in co-relation 121662. Up to 3954 conditions per place. [2024-11-07 19:35:04,447 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 768 selfloop transitions, 1096 changer transitions 4/1875 dead transitions. [2024-11-07 19:35:04,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 1875 transitions, 51700 flow [2024-11-07 19:35:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 19:35:04,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 19:35:04,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2024-11-07 19:35:04,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-07 19:35:04,448 INFO L175 Difference]: Start difference. First operand has 360 places, 1679 transitions, 43253 flow. Second operand 20 states and 224 transitions. [2024-11-07 19:35:04,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 1875 transitions, 51700 flow [2024-11-07 19:35:09,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1875 transitions, 51131 flow, removed 169 selfloop flow, removed 6 redundant places. [2024-11-07 19:35:09,363 INFO L231 Difference]: Finished difference. Result has 384 places, 1832 transitions, 50768 flow [2024-11-07 19:35:09,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42655, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=948, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=50768, PETRI_PLACES=384, PETRI_TRANSITIONS=1832} [2024-11-07 19:35:09,365 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 358 predicate places. [2024-11-07 19:35:09,365 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 1832 transitions, 50768 flow [2024-11-07 19:35:09,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.3125) internal successors, (133), 16 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 19:35:09,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:35:09,366 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:35:09,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 19:35:09,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:35:09,566 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 19:35:09,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:35:09,567 INFO L85 PathProgramCache]: Analyzing trace with hash 858639229, now seen corresponding path program 14 times [2024-11-07 19:35:09,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:35:09,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640756135] [2024-11-07 19:35:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:35:09,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:35:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:35:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:35:09,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:35:09,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640756135] [2024-11-07 19:35:09,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640756135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:35:09,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196703978] [2024-11-07 19:35:09,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:35:09,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:35:09,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:35:09,685 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 19:35:09,687 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 19:35:09,733 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:35:09,733 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:35:09,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:35:09,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:35:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:35:09,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:35:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:35:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196703978] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:35:09,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:35:09,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-07 19:35:09,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584736035] [2024-11-07 19:35:09,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:35:09,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 19:35:09,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:35:09,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 19:35:09,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-07 19:35:09,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:35:09,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 1832 transitions, 50768 flow. Second operand has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 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 19:35:09,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:35:09,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:35:09,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:35:14,447 INFO L124 PetriNetUnfolderBase]: 6552/12178 cut-off events. [2024-11-07 19:35:14,448 INFO L125 PetriNetUnfolderBase]: For 438413/438461 co-relation queries the response was YES. [2024-11-07 19:35:14,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129473 conditions, 12178 events. 6552/12178 cut-off events. For 438413/438461 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 94595 event pairs, 1396 based on Foata normal form. 10/12113 useless extension candidates. Maximal degree in co-relation 129195. Up to 7341 conditions per place. [2024-11-07 19:35:14,654 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 1266 selfloop transitions, 580 changer transitions 4/1857 dead transitions. [2024-11-07 19:35:14,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 1857 transitions, 54875 flow [2024-11-07 19:35:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 19:35:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-07 19:35:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 136 transitions. [2024-11-07 19:35:14,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-11-07 19:35:14,655 INFO L175 Difference]: Start difference. First operand has 384 places, 1832 transitions, 50768 flow. Second operand 12 states and 136 transitions. [2024-11-07 19:35:14,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 1857 transitions, 54875 flow [2024-11-07 19:35:20,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1857 transitions, 54446 flow, removed 91 selfloop flow, removed 10 redundant places. [2024-11-07 19:35:20,379 INFO L231 Difference]: Finished difference. Result has 387 places, 1832 transitions, 51536 flow [2024-11-07 19:35:20,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=50287, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=576, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=51536, PETRI_PLACES=387, PETRI_TRANSITIONS=1832} [2024-11-07 19:35:20,381 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 361 predicate places. [2024-11-07 19:35:20,381 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 1832 transitions, 51536 flow [2024-11-07 19:35:20,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 15 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 19:35:20,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:35:20,381 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:35:20,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-07 19:35:20,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:35:20,582 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 19:35:20,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:35:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1857185175, now seen corresponding path program 15 times [2024-11-07 19:35:20,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:35:20,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844465893] [2024-11-07 19:35:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:35:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:35:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:35:20,704 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 19:35:20,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:35:20,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844465893] [2024-11-07 19:35:20,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844465893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:35:20,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065777436] [2024-11-07 19:35:20,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:35:20,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:35:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:35:20,707 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 19:35:20,709 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 19:35:20,758 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-07 19:35:20,758 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:35:20,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 19:35:20,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:35:20,821 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 19:35:20,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:35:20,891 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 19:35:20,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065777436] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:35:20,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:35:20,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-07 19:35:20,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936211394] [2024-11-07 19:35:20,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:35:20,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 19:35:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:35:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 19:35:20,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-07 19:35:20,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 19:35:20,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 1832 transitions, 51536 flow. Second operand has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 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 19:35:20,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:35:20,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 19:35:20,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:35:26,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 19:35:36,605 INFO L124 PetriNetUnfolderBase]: 9558/17584 cut-off events. [2024-11-07 19:35:36,606 INFO L125 PetriNetUnfolderBase]: For 653196/653300 co-relation queries the response was YES. [2024-11-07 19:35:36,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190940 conditions, 17584 events. 9558/17584 cut-off events. For 653196/653300 co-relation queries the response was YES. Maximal size of possible extension queue 702. Compared 141210 event pairs, 705 based on Foata normal form. 173/17646 useless extension candidates. Maximal degree in co-relation 190584. Up to 4329 conditions per place. [2024-11-07 19:35:36,966 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 686 selfloop transitions, 2017 changer transitions 4/2714 dead transitions. [2024-11-07 19:35:36,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 2714 transitions, 81774 flow [2024-11-07 19:35:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 19:35:37,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-07 19:35:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 356 transitions. [2024-11-07 19:35:37,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.478494623655914 [2024-11-07 19:35:37,124 INFO L175 Difference]: Start difference. First operand has 387 places, 1832 transitions, 51536 flow. Second operand 31 states and 356 transitions. [2024-11-07 19:35:37,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 2714 transitions, 81774 flow [2024-11-07 19:35:46,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 2714 transitions, 80175 flow, removed 17 selfloop flow, removed 11 redundant places. [2024-11-07 19:35:46,763 INFO L231 Difference]: Finished difference. Result has 417 places, 2629 transitions, 80821 flow [2024-11-07 19:35:46,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=50096, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=80821, PETRI_PLACES=417, PETRI_TRANSITIONS=2629} [2024-11-07 19:35:46,765 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 391 predicate places. [2024-11-07 19:35:46,765 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 2629 transitions, 80821 flow [2024-11-07 19:35:46,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 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 19:35:46,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:35:46,765 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:35:46,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-07 19:35:46,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:35:46,966 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 19:35:46,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:35:46,966 INFO L85 PathProgramCache]: Analyzing trace with hash -197970839, now seen corresponding path program 16 times [2024-11-07 19:35:46,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:35:46,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083146347] [2024-11-07 19:35:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:35:46,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:35:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:35:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:35:47,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:35:47,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083146347] [2024-11-07 19:35:47,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083146347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:35:47,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564981962] [2024-11-07 19:35:47,062 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:35:47,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:35:47,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:35:47,065 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 19:35:47,067 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 19:35:47,125 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:35:47,125 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:35:47,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:35:47,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:35:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:35:47,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:35:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:35:47,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564981962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:35:47,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:35:47,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-07 19:35:47,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235216277] [2024-11-07 19:35:47,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:35:47,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:35:47,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:35:47,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:35:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:35:47,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-07 19:35:47,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 2629 transitions, 80821 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:35:47,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:35:47,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-07 19:35:47,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand