./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/mult-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/mult-dist.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:53:38,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:53:38,416 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:53:38,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:53:38,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:53:38,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:53:38,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:53:38,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:53:38,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:53:38,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:53:38,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:53:38,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:53:38,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:53:38,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:53:38,447 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:53:38,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:53:38,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:53:38,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:53:38,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:53:38,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:53:38,449 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:53:38,452 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:53:38,452 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:53:38,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:53:38,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:53:38,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:53:38,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:53:38,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:53:38,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:53:38,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:53:38,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:53:38,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:53:38,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:53:38,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:53:38,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:53:38,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:53:38,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:53:38,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:53:38,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:53:38,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:53:38,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:53:38,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:53:38,456 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c [2024-10-11 19:53:38,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:53:38,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:53:38,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:53:38,739 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:53:38,739 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:53:38,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/mult-dist.wvr.c [2024-10-11 19:53:40,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:53:40,302 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:53:40,302 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/mult-dist.wvr.c [2024-10-11 19:53:40,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d4a9ef5f1/d0c09d8c57e3492294b8631f0ea6b53c/FLAG164dd1bfa [2024-10-11 19:53:40,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d4a9ef5f1/d0c09d8c57e3492294b8631f0ea6b53c [2024-10-11 19:53:40,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:53:40,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:53:40,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:53:40,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:53:40,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:53:40,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5050afb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40, skipping insertion in model container [2024-10-11 19:53:40,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,347 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:53:40,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:53:40,532 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:53:40,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:53:40,604 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:53:40,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40 WrapperNode [2024-10-11 19:53:40,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:53:40,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:53:40,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:53:40,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:53:40,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,634 INFO L138 Inliner]: procedures = 21, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-10-11 19:53:40,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:53:40,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:53:40,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:53:40,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:53:40,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,669 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]. [2024-10-11 19:53:40,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:53:40,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:53:40,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:53:40,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:53:40,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (1/1) ... [2024-10-11 19:53:40,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:53:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:40,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:53:40,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:53:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:53:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:53:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:53:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:53:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:53:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 19:53:40,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 19:53:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:53:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:53:40,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:53:40,800 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:53:40,892 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:53:40,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:53:41,026 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:53:41,027 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:53:41,134 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:53:41,135 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 19:53:41,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:53:41 BoogieIcfgContainer [2024-10-11 19:53:41,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:53:41,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:53:41,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:53:41,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:53:41,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:53:40" (1/3) ... [2024-10-11 19:53:41,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462c9e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:53:41, skipping insertion in model container [2024-10-11 19:53:41,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:53:40" (2/3) ... [2024-10-11 19:53:41,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462c9e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:53:41, skipping insertion in model container [2024-10-11 19:53:41,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:53:41" (3/3) ... [2024-10-11 19:53:41,141 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2024-10-11 19:53:41,152 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:53:41,152 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:53:41,152 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:53:41,189 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-11 19:53:41,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2024-10-11 19:53:41,236 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2024-10-11 19:53:41,237 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 19:53:41,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 3/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2024-10-11 19:53:41,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 27 transitions, 75 flow [2024-10-11 19:53:41,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 23 transitions, 64 flow [2024-10-11 19:53:41,248 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:53:41,254 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;@16d71142, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:53:41,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:53:41,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:53:41,267 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-10-11 19:53:41,267 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 19:53:41,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:41,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:41,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:41,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:41,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1812680405, now seen corresponding path program 1 times [2024-10-11 19:53:41,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:41,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176523642] [2024-10-11 19:53:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:41,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:41,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:41,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176523642] [2024-10-11 19:53:41,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176523642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:53:41,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:53:41,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:53:41,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909848716] [2024-10-11 19:53:41,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:41,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:53:41,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:53:41,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:53:41,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:41,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:41,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:41,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:41,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:41,907 INFO L124 PetriNetUnfolderBase]: 386/565 cut-off events. [2024-10-11 19:53:41,907 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-11 19:53:41,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 565 events. 386/565 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1786 event pairs, 124 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 1030. Up to 349 conditions per place. [2024-10-11 19:53:41,916 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 32 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2024-10-11 19:53:41,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 183 flow [2024-10-11 19:53:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:53:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:53:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-10-11 19:53:41,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 19:53:41,926 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 64 flow. Second operand 3 states and 54 transitions. [2024-10-11 19:53:41,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 183 flow [2024-10-11 19:53:41,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 161 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 19:53:41,933 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 74 flow [2024-10-11 19:53:41,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2024-10-11 19:53:41,940 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2024-10-11 19:53:41,940 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 74 flow [2024-10-11 19:53:41,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:41,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:41,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:41,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:53:41,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:41,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1505537698, now seen corresponding path program 1 times [2024-10-11 19:53:41,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439351172] [2024-10-11 19:53:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:41,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:42,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:42,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439351172] [2024-10-11 19:53:42,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439351172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:53:42,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:53:42,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:53:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835173670] [2024-10-11 19:53:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:42,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:53:42,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:42,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:53:42,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:53:42,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:42,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:42,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:42,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:42,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:42,532 INFO L124 PetriNetUnfolderBase]: 544/771 cut-off events. [2024-10-11 19:53:42,532 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2024-10-11 19:53:42,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 771 events. 544/771 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2530 event pairs, 203 based on Foata normal form. 2/773 useless extension candidates. Maximal degree in co-relation 545. Up to 554 conditions per place. [2024-10-11 19:53:42,537 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 47 selfloop transitions, 18 changer transitions 3/69 dead transitions. [2024-10-11 19:53:42,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 69 transitions, 347 flow [2024-10-11 19:53:42,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:53:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:53:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 94 transitions. [2024-10-11 19:53:42,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2024-10-11 19:53:42,539 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 74 flow. Second operand 7 states and 94 transitions. [2024-10-11 19:53:42,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 69 transitions, 347 flow [2024-10-11 19:53:42,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 69 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:53:42,541 INFO L231 Difference]: Finished difference. Result has 34 places, 40 transitions, 198 flow [2024-10-11 19:53:42,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=198, PETRI_PLACES=34, PETRI_TRANSITIONS=40} [2024-10-11 19:53:42,542 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2024-10-11 19:53:42,542 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 40 transitions, 198 flow [2024-10-11 19:53:42,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:42,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:42,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:42,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:53:42,543 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:42,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1455921082, now seen corresponding path program 2 times [2024-10-11 19:53:42,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:42,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890125241] [2024-10-11 19:53:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:42,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:42,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890125241] [2024-10-11 19:53:42,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890125241] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911371279] [2024-10-11 19:53:42,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:53:42,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:42,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:42,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:42,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 19:53:42,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:53:42,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:42,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 19:53:42,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:42,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:43,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911371279] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:43,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:53:43,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 15 [2024-10-11 19:53:43,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524631923] [2024-10-11 19:53:43,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:43,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:53:43,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:43,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:53:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:53:43,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:43,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 40 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:43,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:43,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:43,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:43,981 INFO L124 PetriNetUnfolderBase]: 849/1221 cut-off events. [2024-10-11 19:53:43,982 INFO L125 PetriNetUnfolderBase]: For 1223/1223 co-relation queries the response was YES. [2024-10-11 19:53:43,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3952 conditions, 1221 events. 849/1221 cut-off events. For 1223/1223 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4445 event pairs, 231 based on Foata normal form. 6/1227 useless extension candidates. Maximal degree in co-relation 2238. Up to 454 conditions per place. [2024-10-11 19:53:43,988 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 90 selfloop transitions, 21 changer transitions 0/112 dead transitions. [2024-10-11 19:53:43,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 112 transitions, 700 flow [2024-10-11 19:53:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:53:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:53:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 131 transitions. [2024-10-11 19:53:43,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6064814814814815 [2024-10-11 19:53:43,990 INFO L175 Difference]: Start difference. First operand has 34 places, 40 transitions, 198 flow. Second operand 8 states and 131 transitions. [2024-10-11 19:53:43,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 112 transitions, 700 flow [2024-10-11 19:53:43,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 112 transitions, 678 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-10-11 19:53:43,994 INFO L231 Difference]: Finished difference. Result has 45 places, 54 transitions, 331 flow [2024-10-11 19:53:43,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=331, PETRI_PLACES=45, PETRI_TRANSITIONS=54} [2024-10-11 19:53:43,995 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 15 predicate places. [2024-10-11 19:53:43,995 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 54 transitions, 331 flow [2024-10-11 19:53:43,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:43,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:43,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:44,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 19:53:44,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:44,197 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:44,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1391237324, now seen corresponding path program 3 times [2024-10-11 19:53:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:44,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567530529] [2024-10-11 19:53:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:44,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:44,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:44,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567530529] [2024-10-11 19:53:44,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567530529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:53:44,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:53:44,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:53:44,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605724661] [2024-10-11 19:53:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:44,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:53:44,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:44,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:53:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:53:44,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:44,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 54 transitions, 331 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:44,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:44,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:44,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:44,619 INFO L124 PetriNetUnfolderBase]: 1031/1462 cut-off events. [2024-10-11 19:53:44,619 INFO L125 PetriNetUnfolderBase]: For 3745/3745 co-relation queries the response was YES. [2024-10-11 19:53:44,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5870 conditions, 1462 events. 1031/1462 cut-off events. For 3745/3745 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5411 event pairs, 368 based on Foata normal form. 2/1464 useless extension candidates. Maximal degree in co-relation 3820. Up to 1080 conditions per place. [2024-10-11 19:53:44,658 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 67 selfloop transitions, 28 changer transitions 3/99 dead transitions. [2024-10-11 19:53:44,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 99 transitions, 778 flow [2024-10-11 19:53:44,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:53:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:53:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 93 transitions. [2024-10-11 19:53:44,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2024-10-11 19:53:44,662 INFO L175 Difference]: Start difference. First operand has 45 places, 54 transitions, 331 flow. Second operand 7 states and 93 transitions. [2024-10-11 19:53:44,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 99 transitions, 778 flow [2024-10-11 19:53:44,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 99 transitions, 758 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-11 19:53:44,677 INFO L231 Difference]: Finished difference. Result has 54 places, 70 transitions, 529 flow [2024-10-11 19:53:44,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=529, PETRI_PLACES=54, PETRI_TRANSITIONS=70} [2024-10-11 19:53:44,678 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2024-10-11 19:53:44,678 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 70 transitions, 529 flow [2024-10-11 19:53:44,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:44,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:44,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:44,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:53:44,679 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:44,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1422138076, now seen corresponding path program 4 times [2024-10-11 19:53:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:44,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676654396] [2024-10-11 19:53:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:44,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:44,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:44,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676654396] [2024-10-11 19:53:44,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676654396] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:44,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304490401] [2024-10-11 19:53:44,824 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:53:44,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:44,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:44,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:44,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 19:53:44,896 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:53:44,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:44,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:53:44,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:45,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:45,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304490401] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:53:45,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:53:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2024-10-11 19:53:45,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125422826] [2024-10-11 19:53:45,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:53:45,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 19:53:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:45,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 19:53:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:53:45,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:45,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 70 transitions, 529 flow. Second operand has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:45,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:45,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:45,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:46,351 INFO L124 PetriNetUnfolderBase]: 1622/2427 cut-off events. [2024-10-11 19:53:46,351 INFO L125 PetriNetUnfolderBase]: For 8334/8334 co-relation queries the response was YES. [2024-10-11 19:53:46,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10751 conditions, 2427 events. 1622/2427 cut-off events. For 8334/8334 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10967 event pairs, 205 based on Foata normal form. 20/2447 useless extension candidates. Maximal degree in co-relation 6855. Up to 828 conditions per place. [2024-10-11 19:53:46,366 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 195 selfloop transitions, 78 changer transitions 0/274 dead transitions. [2024-10-11 19:53:46,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 274 transitions, 2215 flow [2024-10-11 19:53:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 19:53:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-11 19:53:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 311 transitions. [2024-10-11 19:53:46,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5235690235690236 [2024-10-11 19:53:46,368 INFO L175 Difference]: Start difference. First operand has 54 places, 70 transitions, 529 flow. Second operand 22 states and 311 transitions. [2024-10-11 19:53:46,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 274 transitions, 2215 flow [2024-10-11 19:53:46,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 274 transitions, 2129 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-10-11 19:53:46,401 INFO L231 Difference]: Finished difference. Result has 91 places, 125 transitions, 1239 flow [2024-10-11 19:53:46,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1239, PETRI_PLACES=91, PETRI_TRANSITIONS=125} [2024-10-11 19:53:46,401 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2024-10-11 19:53:46,402 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 125 transitions, 1239 flow [2024-10-11 19:53:46,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:46,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:46,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:46,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 19:53:46,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:46,604 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:46,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1794847529, now seen corresponding path program 1 times [2024-10-11 19:53:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:46,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267648242] [2024-10-11 19:53:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:46,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:46,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267648242] [2024-10-11 19:53:46,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267648242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:53:46,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:53:46,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:53:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832737426] [2024-10-11 19:53:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:46,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:53:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:53:46,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:53:46,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:46,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 125 transitions, 1239 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:46,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:46,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:46,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:47,067 INFO L124 PetriNetUnfolderBase]: 1691/2554 cut-off events. [2024-10-11 19:53:47,067 INFO L125 PetriNetUnfolderBase]: For 22464/22464 co-relation queries the response was YES. [2024-10-11 19:53:47,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14661 conditions, 2554 events. 1691/2554 cut-off events. For 22464/22464 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11915 event pairs, 534 based on Foata normal form. 12/2566 useless extension candidates. Maximal degree in co-relation 11955. Up to 1538 conditions per place. [2024-10-11 19:53:47,089 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 157 selfloop transitions, 41 changer transitions 5/204 dead transitions. [2024-10-11 19:53:47,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 204 transitions, 2311 flow [2024-10-11 19:53:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:53:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:53:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 103 transitions. [2024-10-11 19:53:47,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.544973544973545 [2024-10-11 19:53:47,091 INFO L175 Difference]: Start difference. First operand has 91 places, 125 transitions, 1239 flow. Second operand 7 states and 103 transitions. [2024-10-11 19:53:47,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 204 transitions, 2311 flow [2024-10-11 19:53:47,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 204 transitions, 2199 flow, removed 56 selfloop flow, removed 0 redundant places. [2024-10-11 19:53:47,134 INFO L231 Difference]: Finished difference. Result has 101 places, 133 transitions, 1385 flow [2024-10-11 19:53:47,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1385, PETRI_PLACES=101, PETRI_TRANSITIONS=133} [2024-10-11 19:53:47,135 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 71 predicate places. [2024-10-11 19:53:47,135 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 133 transitions, 1385 flow [2024-10-11 19:53:47,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:47,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:47,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:47,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:53:47,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:47,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash 670652976, now seen corresponding path program 5 times [2024-10-11 19:53:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:47,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889963505] [2024-10-11 19:53:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:47,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:47,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:47,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889963505] [2024-10-11 19:53:47,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889963505] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:47,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268385981] [2024-10-11 19:53:47,275 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:53:47,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:47,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:47,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:47,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 19:53:47,337 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:53:47,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:47,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:53:47,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:47,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:47,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268385981] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:47,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:53:47,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 15 [2024-10-11 19:53:47,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932584152] [2024-10-11 19:53:47,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:47,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:53:47,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:47,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:53:47,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:53:47,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:47,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 133 transitions, 1385 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:47,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:47,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:47,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:47,900 INFO L124 PetriNetUnfolderBase]: 1724/2601 cut-off events. [2024-10-11 19:53:47,900 INFO L125 PetriNetUnfolderBase]: For 28627/28627 co-relation queries the response was YES. [2024-10-11 19:53:47,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15658 conditions, 2601 events. 1724/2601 cut-off events. For 28627/28627 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 11949 event pairs, 599 based on Foata normal form. 12/2613 useless extension candidates. Maximal degree in co-relation 14939. Up to 1250 conditions per place. [2024-10-11 19:53:47,926 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 146 selfloop transitions, 30 changer transitions 0/177 dead transitions. [2024-10-11 19:53:47,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 177 transitions, 2099 flow [2024-10-11 19:53:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:53:47,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:53:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2024-10-11 19:53:47,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-10-11 19:53:47,928 INFO L175 Difference]: Start difference. First operand has 101 places, 133 transitions, 1385 flow. Second operand 6 states and 93 transitions. [2024-10-11 19:53:47,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 177 transitions, 2099 flow [2024-10-11 19:53:47,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 177 transitions, 1991 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-10-11 19:53:47,981 INFO L231 Difference]: Finished difference. Result has 105 places, 140 transitions, 1456 flow [2024-10-11 19:53:47,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1279, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1456, PETRI_PLACES=105, PETRI_TRANSITIONS=140} [2024-10-11 19:53:47,983 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 75 predicate places. [2024-10-11 19:53:47,983 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 140 transitions, 1456 flow [2024-10-11 19:53:47,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:47,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:47,984 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:47,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 19:53:48,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:48,185 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:48,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 431310106, now seen corresponding path program 6 times [2024-10-11 19:53:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323236738] [2024-10-11 19:53:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:48,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:48,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:48,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323236738] [2024-10-11 19:53:48,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323236738] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:48,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662796999] [2024-10-11 19:53:48,297 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 19:53:48,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:48,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:48,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:48,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 19:53:48,355 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 19:53:48,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:48,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:53:48,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:48,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662796999] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:53:48,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:53:48,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 15 [2024-10-11 19:53:48,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955910489] [2024-10-11 19:53:48,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:53:48,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 19:53:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 19:53:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:53:48,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:48,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 140 transitions, 1456 flow. Second operand has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 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) [2024-10-11 19:53:48,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:48,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:48,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:49,743 INFO L124 PetriNetUnfolderBase]: 2427/3690 cut-off events. [2024-10-11 19:53:49,743 INFO L125 PetriNetUnfolderBase]: For 43776/43776 co-relation queries the response was YES. [2024-10-11 19:53:49,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22814 conditions, 3690 events. 2427/3690 cut-off events. For 43776/43776 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 18614 event pairs, 269 based on Foata normal form. 29/3719 useless extension candidates. Maximal degree in co-relation 21833. Up to 1281 conditions per place. [2024-10-11 19:53:49,774 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 211 selfloop transitions, 214 changer transitions 4/430 dead transitions. [2024-10-11 19:53:49,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 430 transitions, 5280 flow [2024-10-11 19:53:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 19:53:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 19:53:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 286 transitions. [2024-10-11 19:53:49,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5044091710758377 [2024-10-11 19:53:49,776 INFO L175 Difference]: Start difference. First operand has 105 places, 140 transitions, 1456 flow. Second operand 21 states and 286 transitions. [2024-10-11 19:53:49,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 430 transitions, 5280 flow [2024-10-11 19:53:49,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 430 transitions, 5178 flow, removed 31 selfloop flow, removed 1 redundant places. [2024-10-11 19:53:49,877 INFO L231 Difference]: Finished difference. Result has 139 places, 294 transitions, 4102 flow [2024-10-11 19:53:49,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=1401, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4102, PETRI_PLACES=139, PETRI_TRANSITIONS=294} [2024-10-11 19:53:49,877 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 109 predicate places. [2024-10-11 19:53:49,878 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 294 transitions, 4102 flow [2024-10-11 19:53:49,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 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) [2024-10-11 19:53:49,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:49,878 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:49,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 19:53:50,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 19:53:50,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:50,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:50,079 INFO L85 PathProgramCache]: Analyzing trace with hash -770634430, now seen corresponding path program 7 times [2024-10-11 19:53:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:50,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26953352] [2024-10-11 19:53:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:50,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:50,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26953352] [2024-10-11 19:53:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26953352] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659662221] [2024-10-11 19:53:50,191 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 19:53:50,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:50,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:50,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:50,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 19:53:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:50,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:53:50,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:50,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659662221] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:50,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:53:50,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 15 [2024-10-11 19:53:50,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155545458] [2024-10-11 19:53:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:50,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:53:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:50,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:53:50,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:53:50,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:50,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 294 transitions, 4102 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:50,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:50,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:50,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:50,943 INFO L124 PetriNetUnfolderBase]: 2432/3699 cut-off events. [2024-10-11 19:53:50,944 INFO L125 PetriNetUnfolderBase]: For 70634/70634 co-relation queries the response was YES. [2024-10-11 19:53:50,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27828 conditions, 3699 events. 2432/3699 cut-off events. For 70634/70634 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 18578 event pairs, 590 based on Foata normal form. 15/3714 useless extension candidates. Maximal degree in co-relation 26687. Up to 1919 conditions per place. [2024-10-11 19:53:50,979 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 277 selfloop transitions, 68 changer transitions 0/346 dead transitions. [2024-10-11 19:53:50,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 346 transitions, 5436 flow [2024-10-11 19:53:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:53:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:53:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-10-11 19:53:50,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-10-11 19:53:50,980 INFO L175 Difference]: Start difference. First operand has 139 places, 294 transitions, 4102 flow. Second operand 6 states and 92 transitions. [2024-10-11 19:53:50,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 346 transitions, 5436 flow [2024-10-11 19:53:51,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 346 transitions, 4952 flow, removed 242 selfloop flow, removed 0 redundant places. [2024-10-11 19:53:51,407 INFO L231 Difference]: Finished difference. Result has 144 places, 298 transitions, 3927 flow [2024-10-11 19:53:51,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=3720, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3927, PETRI_PLACES=144, PETRI_TRANSITIONS=298} [2024-10-11 19:53:51,408 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 114 predicate places. [2024-10-11 19:53:51,409 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 298 transitions, 3927 flow [2024-10-11 19:53:51,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:51,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:51,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:51,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 19:53:51,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:51,610 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:51,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:51,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1673473542, now seen corresponding path program 1 times [2024-10-11 19:53:51,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:51,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220034036] [2024-10-11 19:53:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:51,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:51,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:51,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:51,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220034036] [2024-10-11 19:53:51,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220034036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:53:51,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:53:51,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:53:51,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51612340] [2024-10-11 19:53:51,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:51,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:53:51,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:51,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:53:51,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:53:51,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:51,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 298 transitions, 3927 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:51,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:51,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:51,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:52,381 INFO L124 PetriNetUnfolderBase]: 2503/3831 cut-off events. [2024-10-11 19:53:52,381 INFO L125 PetriNetUnfolderBase]: For 67343/67343 co-relation queries the response was YES. [2024-10-11 19:53:52,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27194 conditions, 3831 events. 2503/3831 cut-off events. For 67343/67343 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 19700 event pairs, 629 based on Foata normal form. 20/3851 useless extension candidates. Maximal degree in co-relation 26371. Up to 2337 conditions per place. [2024-10-11 19:53:52,409 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 270 selfloop transitions, 90 changer transitions 8/369 dead transitions. [2024-10-11 19:53:52,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 369 transitions, 5322 flow [2024-10-11 19:53:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:53:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:53:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions. [2024-10-11 19:53:52,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5608465608465608 [2024-10-11 19:53:52,410 INFO L175 Difference]: Start difference. First operand has 144 places, 298 transitions, 3927 flow. Second operand 7 states and 106 transitions. [2024-10-11 19:53:52,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 369 transitions, 5322 flow [2024-10-11 19:53:52,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 369 transitions, 5176 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-11 19:53:52,559 INFO L231 Difference]: Finished difference. Result has 150 places, 304 transitions, 4122 flow [2024-10-11 19:53:52,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=3789, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4122, PETRI_PLACES=150, PETRI_TRANSITIONS=304} [2024-10-11 19:53:52,560 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 120 predicate places. [2024-10-11 19:53:52,560 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 304 transitions, 4122 flow [2024-10-11 19:53:52,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:52,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:52,561 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:52,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:53:52,561 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:52,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:52,561 INFO L85 PathProgramCache]: Analyzing trace with hash 453558205, now seen corresponding path program 2 times [2024-10-11 19:53:52,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:52,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583439386] [2024-10-11 19:53:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:52,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:52,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:52,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:52,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583439386] [2024-10-11 19:53:52,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583439386] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:52,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630526170] [2024-10-11 19:53:52,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:53:52,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:52,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:52,689 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:52,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 19:53:52,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:53:52,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:52,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:53:52,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:52,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:53,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630526170] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:53:53,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:53:53,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2024-10-11 19:53:53,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798852124] [2024-10-11 19:53:53,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:53:53,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 19:53:53,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:53,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 19:53:53,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:53:53,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:53,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 304 transitions, 4122 flow. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:53,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:53,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:53,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:54,660 INFO L124 PetriNetUnfolderBase]: 3813/5831 cut-off events. [2024-10-11 19:53:54,661 INFO L125 PetriNetUnfolderBase]: For 99017/99017 co-relation queries the response was YES. [2024-10-11 19:53:54,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41678 conditions, 5831 events. 3813/5831 cut-off events. For 99017/99017 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 32525 event pairs, 518 based on Foata normal form. 31/5862 useless extension candidates. Maximal degree in co-relation 41571. Up to 2060 conditions per place. [2024-10-11 19:53:54,770 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 351 selfloop transitions, 304 changer transitions 0/656 dead transitions. [2024-10-11 19:53:54,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 656 transitions, 9480 flow [2024-10-11 19:53:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 19:53:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-11 19:53:54,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 321 transitions. [2024-10-11 19:53:54,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5404040404040404 [2024-10-11 19:53:54,778 INFO L175 Difference]: Start difference. First operand has 150 places, 304 transitions, 4122 flow. Second operand 22 states and 321 transitions. [2024-10-11 19:53:54,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 656 transitions, 9480 flow [2024-10-11 19:53:55,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 656 transitions, 9295 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-10-11 19:53:55,105 INFO L231 Difference]: Finished difference. Result has 181 places, 432 transitions, 6921 flow [2024-10-11 19:53:55,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=3943, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6921, PETRI_PLACES=181, PETRI_TRANSITIONS=432} [2024-10-11 19:53:55,106 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 151 predicate places. [2024-10-11 19:53:55,106 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 432 transitions, 6921 flow [2024-10-11 19:53:55,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:55,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:55,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:55,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 19:53:55,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 19:53:55,312 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:55,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:55,313 INFO L85 PathProgramCache]: Analyzing trace with hash -385979090, now seen corresponding path program 8 times [2024-10-11 19:53:55,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:55,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303410308] [2024-10-11 19:53:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:55,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:55,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303410308] [2024-10-11 19:53:55,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303410308] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:55,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599224763] [2024-10-11 19:53:55,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:53:55,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:55,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:55,471 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:55,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 19:53:55,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:53:55,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:55,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:53:55,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:55,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599224763] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:55,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:53:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2024-10-11 19:53:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747379921] [2024-10-11 19:53:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:55,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:53:55,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:55,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:53:55,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:53:55,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:55,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 432 transitions, 6921 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:55,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:55,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:55,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:56,706 INFO L124 PetriNetUnfolderBase]: 4180/6324 cut-off events. [2024-10-11 19:53:56,708 INFO L125 PetriNetUnfolderBase]: For 134435/134435 co-relation queries the response was YES. [2024-10-11 19:53:56,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51386 conditions, 6324 events. 4180/6324 cut-off events. For 134435/134435 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 35010 event pairs, 863 based on Foata normal form. 26/6350 useless extension candidates. Maximal degree in co-relation 51258. Up to 3526 conditions per place. [2024-10-11 19:53:56,803 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 395 selfloop transitions, 146 changer transitions 0/542 dead transitions. [2024-10-11 19:53:56,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 542 transitions, 9664 flow [2024-10-11 19:53:56,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:53:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:53:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-10-11 19:53:56,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-10-11 19:53:56,804 INFO L175 Difference]: Start difference. First operand has 181 places, 432 transitions, 6921 flow. Second operand 6 states and 92 transitions. [2024-10-11 19:53:56,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 542 transitions, 9664 flow [2024-10-11 19:53:57,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 542 transitions, 9413 flow, removed 102 selfloop flow, removed 3 redundant places. [2024-10-11 19:53:57,364 INFO L231 Difference]: Finished difference. Result has 187 places, 485 transitions, 8305 flow [2024-10-11 19:53:57,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=6724, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8305, PETRI_PLACES=187, PETRI_TRANSITIONS=485} [2024-10-11 19:53:57,365 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 157 predicate places. [2024-10-11 19:53:57,365 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 485 transitions, 8305 flow [2024-10-11 19:53:57,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:57,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:53:57,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:53:57,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 19:53:57,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:57,569 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:53:57,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:53:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash -870164262, now seen corresponding path program 9 times [2024-10-11 19:53:57,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:53:57,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539734477] [2024-10-11 19:53:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:53:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:53:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:53:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:57,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:53:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539734477] [2024-10-11 19:53:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539734477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324465495] [2024-10-11 19:53:57,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:53:57,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:53:57,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:53:57,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:53:57,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 19:53:57,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 19:53:57,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:53:57,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:53:57,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:53:57,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:57,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:53:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:53:57,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324465495] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 19:53:57,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:53:57,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 14 [2024-10-11 19:53:57,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123955411] [2024-10-11 19:53:57,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:53:57,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:53:57,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:53:57,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:53:57,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:53:57,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:53:57,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 485 transitions, 8305 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:53:57,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:53:57,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:53:57,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:53:59,425 INFO L124 PetriNetUnfolderBase]: 4360/6683 cut-off events. [2024-10-11 19:53:59,425 INFO L125 PetriNetUnfolderBase]: For 163559/163559 co-relation queries the response was YES. [2024-10-11 19:53:59,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55585 conditions, 6683 events. 4360/6683 cut-off events. For 163559/163559 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 38230 event pairs, 590 based on Foata normal form. 26/6709 useless extension candidates. Maximal degree in co-relation 54989. Up to 2295 conditions per place. [2024-10-11 19:53:59,490 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 403 selfloop transitions, 202 changer transitions 0/606 dead transitions. [2024-10-11 19:53:59,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 606 transitions, 11130 flow [2024-10-11 19:53:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:53:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:53:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-10-11 19:53:59,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-11 19:53:59,494 INFO L175 Difference]: Start difference. First operand has 187 places, 485 transitions, 8305 flow. Second operand 8 states and 132 transitions. [2024-10-11 19:53:59,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 606 transitions, 11130 flow [2024-10-11 19:54:00,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 606 transitions, 10926 flow, removed 82 selfloop flow, removed 1 redundant places. [2024-10-11 19:54:00,338 INFO L231 Difference]: Finished difference. Result has 196 places, 510 transitions, 9224 flow [2024-10-11 19:54:00,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=8121, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9224, PETRI_PLACES=196, PETRI_TRANSITIONS=510} [2024-10-11 19:54:00,340 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 166 predicate places. [2024-10-11 19:54:00,340 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 510 transitions, 9224 flow [2024-10-11 19:54:00,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:00,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:00,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:00,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 19:54:00,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 19:54:00,545 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:00,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:00,545 INFO L85 PathProgramCache]: Analyzing trace with hash 928613624, now seen corresponding path program 10 times [2024-10-11 19:54:00,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:00,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262325457] [2024-10-11 19:54:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:00,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:00,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262325457] [2024-10-11 19:54:00,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262325457] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:00,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485350352] [2024-10-11 19:54:00,677 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:54:00,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:00,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:00,678 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:00,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 19:54:00,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:54:00,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:00,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:54:00,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:00,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485350352] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:00,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:54:00,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 8] total 15 [2024-10-11 19:54:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012373304] [2024-10-11 19:54:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:00,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:54:00,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:00,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:54:00,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:54:00,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:00,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 510 transitions, 9224 flow. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:00,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:00,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:00,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:02,219 INFO L124 PetriNetUnfolderBase]: 4323/6585 cut-off events. [2024-10-11 19:54:02,219 INFO L125 PetriNetUnfolderBase]: For 166124/166124 co-relation queries the response was YES. [2024-10-11 19:54:02,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55769 conditions, 6585 events. 4323/6585 cut-off events. For 166124/166124 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 37191 event pairs, 910 based on Foata normal form. 26/6611 useless extension candidates. Maximal degree in co-relation 55150. Up to 3733 conditions per place. [2024-10-11 19:54:02,436 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 410 selfloop transitions, 155 changer transitions 0/566 dead transitions. [2024-10-11 19:54:02,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 566 transitions, 11016 flow [2024-10-11 19:54:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:54:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:54:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2024-10-11 19:54:02,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5617283950617284 [2024-10-11 19:54:02,448 INFO L175 Difference]: Start difference. First operand has 196 places, 510 transitions, 9224 flow. Second operand 6 states and 91 transitions. [2024-10-11 19:54:02,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 566 transitions, 11016 flow [2024-10-11 19:54:03,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 566 transitions, 10795 flow, removed 25 selfloop flow, removed 2 redundant places. [2024-10-11 19:54:03,284 INFO L231 Difference]: Finished difference. Result has 200 places, 510 transitions, 9337 flow [2024-10-11 19:54:03,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=9015, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9337, PETRI_PLACES=200, PETRI_TRANSITIONS=510} [2024-10-11 19:54:03,285 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 170 predicate places. [2024-10-11 19:54:03,285 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 510 transitions, 9337 flow [2024-10-11 19:54:03,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:03,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:03,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:03,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 19:54:03,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:03,487 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:03,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1228611087, now seen corresponding path program 3 times [2024-10-11 19:54:03,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:03,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420732892] [2024-10-11 19:54:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:03,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:03,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:03,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420732892] [2024-10-11 19:54:03,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420732892] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260199845] [2024-10-11 19:54:03,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:54:03,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:03,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:03,609 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:03,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 19:54:03,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 19:54:03,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:03,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:54:03,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:03,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:03,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260199845] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:03,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:03,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2024-10-11 19:54:03,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94670883] [2024-10-11 19:54:03,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:03,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 19:54:03,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:03,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 19:54:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:54:03,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:03,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 510 transitions, 9337 flow. Second operand has 15 states, 15 states have (on average 7.2) internal successors, (108), 15 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:03,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:03,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:03,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:05,917 INFO L124 PetriNetUnfolderBase]: 4450/6796 cut-off events. [2024-10-11 19:54:05,917 INFO L125 PetriNetUnfolderBase]: For 159758/159758 co-relation queries the response was YES. [2024-10-11 19:54:05,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55811 conditions, 6796 events. 4450/6796 cut-off events. For 159758/159758 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 38953 event pairs, 803 based on Foata normal form. 39/6835 useless extension candidates. Maximal degree in co-relation 55196. Up to 2494 conditions per place. [2024-10-11 19:54:06,020 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 524 selfloop transitions, 214 changer transitions 0/739 dead transitions. [2024-10-11 19:54:06,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 739 transitions, 13866 flow [2024-10-11 19:54:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:54:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 19:54:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 253 transitions. [2024-10-11 19:54:06,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49317738791423 [2024-10-11 19:54:06,023 INFO L175 Difference]: Start difference. First operand has 200 places, 510 transitions, 9337 flow. Second operand 19 states and 253 transitions. [2024-10-11 19:54:06,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 739 transitions, 13866 flow [2024-10-11 19:54:06,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 739 transitions, 13674 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-10-11 19:54:06,848 INFO L231 Difference]: Finished difference. Result has 227 places, 555 transitions, 10485 flow [2024-10-11 19:54:06,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=9180, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10485, PETRI_PLACES=227, PETRI_TRANSITIONS=555} [2024-10-11 19:54:06,849 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 197 predicate places. [2024-10-11 19:54:06,850 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 555 transitions, 10485 flow [2024-10-11 19:54:06,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.2) internal successors, (108), 15 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:06,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:06,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:06,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 19:54:07,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 19:54:07,055 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:07,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:07,056 INFO L85 PathProgramCache]: Analyzing trace with hash -98778041, now seen corresponding path program 4 times [2024-10-11 19:54:07,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283853093] [2024-10-11 19:54:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:07,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:07,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283853093] [2024-10-11 19:54:07,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283853093] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:07,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110769442] [2024-10-11 19:54:07,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:54:07,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:07,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:07,153 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:07,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 19:54:07,213 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:54:07,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:07,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:54:07,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:07,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:07,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110769442] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:07,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:07,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2024-10-11 19:54:07,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752534092] [2024-10-11 19:54:07,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:07,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 19:54:07,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 19:54:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-11 19:54:07,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:07,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 555 transitions, 10485 flow. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:07,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:07,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:07,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:09,499 INFO L124 PetriNetUnfolderBase]: 4484/6843 cut-off events. [2024-10-11 19:54:09,499 INFO L125 PetriNetUnfolderBase]: For 188706/188706 co-relation queries the response was YES. [2024-10-11 19:54:09,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60483 conditions, 6843 events. 4484/6843 cut-off events. For 188706/188706 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 39286 event pairs, 778 based on Foata normal form. 25/6868 useless extension candidates. Maximal degree in co-relation 60145. Up to 2494 conditions per place. [2024-10-11 19:54:09,569 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 538 selfloop transitions, 227 changer transitions 0/766 dead transitions. [2024-10-11 19:54:09,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 766 transitions, 14900 flow [2024-10-11 19:54:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 19:54:09,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 19:54:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 267 transitions. [2024-10-11 19:54:09,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4708994708994709 [2024-10-11 19:54:09,570 INFO L175 Difference]: Start difference. First operand has 227 places, 555 transitions, 10485 flow. Second operand 21 states and 267 transitions. [2024-10-11 19:54:09,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 766 transitions, 14900 flow [2024-10-11 19:54:10,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 766 transitions, 14587 flow, removed 58 selfloop flow, removed 3 redundant places. [2024-10-11 19:54:10,384 INFO L231 Difference]: Finished difference. Result has 256 places, 587 transitions, 11407 flow [2024-10-11 19:54:10,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=10178, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11407, PETRI_PLACES=256, PETRI_TRANSITIONS=587} [2024-10-11 19:54:10,386 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 226 predicate places. [2024-10-11 19:54:10,386 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 587 transitions, 11407 flow [2024-10-11 19:54:10,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:10,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:10,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:10,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 19:54:10,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 19:54:10,587 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:10,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:10,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1269807392, now seen corresponding path program 11 times [2024-10-11 19:54:10,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:10,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955706534] [2024-10-11 19:54:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:10,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:10,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:10,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955706534] [2024-10-11 19:54:10,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955706534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:10,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086129213] [2024-10-11 19:54:10,920 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:54:10,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:10,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:10,923 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:10,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 19:54:10,985 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:54:10,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:10,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 19:54:10,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:11,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:11,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086129213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:11,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:11,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 12 [2024-10-11 19:54:11,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614900011] [2024-10-11 19:54:11,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:11,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 19:54:11,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 19:54:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-11 19:54:11,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:11,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 587 transitions, 11407 flow. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:11,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:11,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:11,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:13,588 INFO L124 PetriNetUnfolderBase]: 5652/8678 cut-off events. [2024-10-11 19:54:13,589 INFO L125 PetriNetUnfolderBase]: For 268811/268811 co-relation queries the response was YES. [2024-10-11 19:54:13,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79773 conditions, 8678 events. 5652/8678 cut-off events. For 268811/268811 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 52614 event pairs, 1097 based on Foata normal form. 34/8712 useless extension candidates. Maximal degree in co-relation 79415. Up to 4172 conditions per place. [2024-10-11 19:54:13,709 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 413 selfloop transitions, 517 changer transitions 0/931 dead transitions. [2024-10-11 19:54:13,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 931 transitions, 19177 flow [2024-10-11 19:54:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:54:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 19:54:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 271 transitions. [2024-10-11 19:54:13,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5282651072124757 [2024-10-11 19:54:13,711 INFO L175 Difference]: Start difference. First operand has 256 places, 587 transitions, 11407 flow. Second operand 19 states and 271 transitions. [2024-10-11 19:54:13,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 931 transitions, 19177 flow [2024-10-11 19:54:15,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 931 transitions, 18807 flow, removed 112 selfloop flow, removed 4 redundant places. [2024-10-11 19:54:15,165 INFO L231 Difference]: Finished difference. Result has 281 places, 751 transitions, 16480 flow [2024-10-11 19:54:15,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=11086, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=16480, PETRI_PLACES=281, PETRI_TRANSITIONS=751} [2024-10-11 19:54:15,169 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 251 predicate places. [2024-10-11 19:54:15,169 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 751 transitions, 16480 flow [2024-10-11 19:54:15,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:15,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:15,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:15,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 19:54:15,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 19:54:15,370 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:15,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2028532560, now seen corresponding path program 2 times [2024-10-11 19:54:15,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:15,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580733580] [2024-10-11 19:54:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:15,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:15,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580733580] [2024-10-11 19:54:15,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580733580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:15,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:15,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:54:15,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891367686] [2024-10-11 19:54:15,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:15,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:54:15,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:15,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:54:15,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:54:15,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:15,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 751 transitions, 16480 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:15,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:15,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:15,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:17,455 INFO L124 PetriNetUnfolderBase]: 5662/8737 cut-off events. [2024-10-11 19:54:17,455 INFO L125 PetriNetUnfolderBase]: For 312766/312766 co-relation queries the response was YES. [2024-10-11 19:54:17,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86024 conditions, 8737 events. 5662/8737 cut-off events. For 312766/312766 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 53345 event pairs, 1788 based on Foata normal form. 24/8761 useless extension candidates. Maximal degree in co-relation 85611. Up to 7956 conditions per place. [2024-10-11 19:54:17,556 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 678 selfloop transitions, 106 changer transitions 9/794 dead transitions. [2024-10-11 19:54:17,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 794 transitions, 18527 flow [2024-10-11 19:54:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:54:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:54:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 101 transitions. [2024-10-11 19:54:17,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5343915343915344 [2024-10-11 19:54:17,557 INFO L175 Difference]: Start difference. First operand has 281 places, 751 transitions, 16480 flow. Second operand 7 states and 101 transitions. [2024-10-11 19:54:17,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 794 transitions, 18527 flow [2024-10-11 19:54:19,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 794 transitions, 17938 flow, removed 141 selfloop flow, removed 5 redundant places. [2024-10-11 19:54:19,863 INFO L231 Difference]: Finished difference. Result has 285 places, 751 transitions, 16138 flow [2024-10-11 19:54:19,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=15895, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16138, PETRI_PLACES=285, PETRI_TRANSITIONS=751} [2024-10-11 19:54:19,866 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 255 predicate places. [2024-10-11 19:54:19,866 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 751 transitions, 16138 flow [2024-10-11 19:54:19,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:19,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:19,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:19,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 19:54:19,867 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:19,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:19,867 INFO L85 PathProgramCache]: Analyzing trace with hash 966656068, now seen corresponding path program 12 times [2024-10-11 19:54:19,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:19,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969527845] [2024-10-11 19:54:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:19,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:19,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:19,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969527845] [2024-10-11 19:54:19,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969527845] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:19,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512633916] [2024-10-11 19:54:19,994 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 19:54:19,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:19,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:19,998 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:20,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 19:54:20,060 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 19:54:20,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:20,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:54:20,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:20,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:20,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512633916] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:20,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:20,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 16 [2024-10-11 19:54:20,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705626612] [2024-10-11 19:54:20,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:20,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 19:54:20,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:20,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 19:54:20,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-11 19:54:20,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:20,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 751 transitions, 16138 flow. Second operand has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:20,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:20,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:20,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:22,850 INFO L124 PetriNetUnfolderBase]: 6307/9577 cut-off events. [2024-10-11 19:54:22,850 INFO L125 PetriNetUnfolderBase]: For 331377/331377 co-relation queries the response was YES. [2024-10-11 19:54:22,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93417 conditions, 9577 events. 6307/9577 cut-off events. For 331377/331377 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 57830 event pairs, 1494 based on Foata normal form. 42/9619 useless extension candidates. Maximal degree in co-relation 93230. Up to 7479 conditions per place. [2024-10-11 19:54:22,959 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 670 selfloop transitions, 365 changer transitions 0/1036 dead transitions. [2024-10-11 19:54:22,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 1036 transitions, 23138 flow [2024-10-11 19:54:22,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:54:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-11 19:54:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 263 transitions. [2024-10-11 19:54:22,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5126705653021443 [2024-10-11 19:54:22,960 INFO L175 Difference]: Start difference. First operand has 285 places, 751 transitions, 16138 flow. Second operand 19 states and 263 transitions. [2024-10-11 19:54:22,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 1036 transitions, 23138 flow [2024-10-11 19:54:24,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 1036 transitions, 22898 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-10-11 19:54:24,855 INFO L231 Difference]: Finished difference. Result has 307 places, 894 transitions, 19915 flow [2024-10-11 19:54:24,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=15914, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=19915, PETRI_PLACES=307, PETRI_TRANSITIONS=894} [2024-10-11 19:54:24,856 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 277 predicate places. [2024-10-11 19:54:24,856 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 894 transitions, 19915 flow [2024-10-11 19:54:24,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:24,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:24,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:24,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 19:54:25,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:25,061 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:25,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash 482949936, now seen corresponding path program 3 times [2024-10-11 19:54:25,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:25,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43430228] [2024-10-11 19:54:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:25,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:25,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:25,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43430228] [2024-10-11 19:54:25,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43430228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:25,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:25,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:54:25,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927272971] [2024-10-11 19:54:25,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:25,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:54:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:25,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:54:25,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:54:25,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:25,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 894 transitions, 19915 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:25,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:25,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:25,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:27,516 INFO L124 PetriNetUnfolderBase]: 6327/9609 cut-off events. [2024-10-11 19:54:27,516 INFO L125 PetriNetUnfolderBase]: For 350040/350040 co-relation queries the response was YES. [2024-10-11 19:54:27,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97575 conditions, 9609 events. 6327/9609 cut-off events. For 350040/350040 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 57994 event pairs, 1850 based on Foata normal form. 12/9621 useless extension candidates. Maximal degree in co-relation 97140. Up to 8839 conditions per place. [2024-10-11 19:54:27,638 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 805 selfloop transitions, 120 changer transitions 0/926 dead transitions. [2024-10-11 19:54:27,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 926 transitions, 22146 flow [2024-10-11 19:54:27,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:54:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:54:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 97 transitions. [2024-10-11 19:54:27,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5132275132275133 [2024-10-11 19:54:27,639 INFO L175 Difference]: Start difference. First operand has 307 places, 894 transitions, 19915 flow. Second operand 7 states and 97 transitions. [2024-10-11 19:54:27,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 926 transitions, 22146 flow [2024-10-11 19:54:30,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 926 transitions, 21518 flow, removed 251 selfloop flow, removed 2 redundant places. [2024-10-11 19:54:30,348 INFO L231 Difference]: Finished difference. Result has 312 places, 898 transitions, 19619 flow [2024-10-11 19:54:30,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=19289, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=776, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19619, PETRI_PLACES=312, PETRI_TRANSITIONS=898} [2024-10-11 19:54:30,349 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 282 predicate places. [2024-10-11 19:54:30,349 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 898 transitions, 19619 flow [2024-10-11 19:54:30,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:30,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:30,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:30,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 19:54:30,350 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:30,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash 686232076, now seen corresponding path program 13 times [2024-10-11 19:54:30,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:30,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16332074] [2024-10-11 19:54:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:30,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:30,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:30,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16332074] [2024-10-11 19:54:30,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16332074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:30,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:30,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:54:30,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816097862] [2024-10-11 19:54:30,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:30,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:54:30,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:30,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:54:30,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:54:30,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:30,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 898 transitions, 19619 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:30,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:30,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:30,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:33,081 INFO L124 PetriNetUnfolderBase]: 6361/9659 cut-off events. [2024-10-11 19:54:33,082 INFO L125 PetriNetUnfolderBase]: For 343719/343719 co-relation queries the response was YES. [2024-10-11 19:54:33,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96581 conditions, 9659 events. 6361/9659 cut-off events. For 343719/343719 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 58267 event pairs, 1875 based on Foata normal form. 12/9671 useless extension candidates. Maximal degree in co-relation 96144. Up to 8947 conditions per place. [2024-10-11 19:54:33,224 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 808 selfloop transitions, 130 changer transitions 0/939 dead transitions. [2024-10-11 19:54:33,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 939 transitions, 22078 flow [2024-10-11 19:54:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:54:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:54:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 95 transitions. [2024-10-11 19:54:33,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5026455026455027 [2024-10-11 19:54:33,225 INFO L175 Difference]: Start difference. First operand has 312 places, 898 transitions, 19619 flow. Second operand 7 states and 95 transitions. [2024-10-11 19:54:33,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 939 transitions, 22078 flow [2024-10-11 19:54:35,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 939 transitions, 21824 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 19:54:35,777 INFO L231 Difference]: Finished difference. Result has 317 places, 913 transitions, 19985 flow [2024-10-11 19:54:35,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=19381, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=776, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19985, PETRI_PLACES=317, PETRI_TRANSITIONS=913} [2024-10-11 19:54:35,778 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 287 predicate places. [2024-10-11 19:54:35,778 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 913 transitions, 19985 flow [2024-10-11 19:54:35,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:35,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:35,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:35,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 19:54:35,779 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:35,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2044731440, now seen corresponding path program 14 times [2024-10-11 19:54:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:35,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637657346] [2024-10-11 19:54:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:35,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:35,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:35,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637657346] [2024-10-11 19:54:35,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637657346] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:35,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209434064] [2024-10-11 19:54:35,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:54:35,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:35,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:35,871 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:35,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 19:54:35,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:54:35,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:35,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:54:35,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:36,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:36,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209434064] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:36,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:36,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 11 [2024-10-11 19:54:36,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488336931] [2024-10-11 19:54:36,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:36,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 19:54:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:36,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 19:54:36,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:54:36,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:36,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 913 transitions, 19985 flow. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:36,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:36,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:36,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:39,104 INFO L124 PetriNetUnfolderBase]: 6397/9661 cut-off events. [2024-10-11 19:54:39,104 INFO L125 PetriNetUnfolderBase]: For 355714/355714 co-relation queries the response was YES. [2024-10-11 19:54:39,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97822 conditions, 9661 events. 6397/9661 cut-off events. For 355714/355714 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 57956 event pairs, 1528 based on Foata normal form. 23/9684 useless extension candidates. Maximal degree in co-relation 97379. Up to 7643 conditions per place. [2024-10-11 19:54:39,226 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 654 selfloop transitions, 377 changer transitions 0/1032 dead transitions. [2024-10-11 19:54:39,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1032 transitions, 23944 flow [2024-10-11 19:54:39,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 19:54:39,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 19:54:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 189 transitions. [2024-10-11 19:54:39,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-10-11 19:54:39,228 INFO L175 Difference]: Start difference. First operand has 317 places, 913 transitions, 19985 flow. Second operand 14 states and 189 transitions. [2024-10-11 19:54:39,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1032 transitions, 23944 flow [2024-10-11 19:54:41,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1032 transitions, 23708 flow, removed 16 selfloop flow, removed 2 redundant places. [2024-10-11 19:54:41,447 INFO L231 Difference]: Finished difference. Result has 332 places, 941 transitions, 21283 flow [2024-10-11 19:54:41,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=19751, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=913, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=349, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=21283, PETRI_PLACES=332, PETRI_TRANSITIONS=941} [2024-10-11 19:54:41,448 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 302 predicate places. [2024-10-11 19:54:41,449 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 941 transitions, 21283 flow [2024-10-11 19:54:41,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:41,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:41,449 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:41,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 19:54:41,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 19:54:41,654 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:41,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash -735559431, now seen corresponding path program 5 times [2024-10-11 19:54:41,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:41,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452421383] [2024-10-11 19:54:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:41,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452421383] [2024-10-11 19:54:41,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452421383] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:41,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235437368] [2024-10-11 19:54:41,741 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:54:41,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:41,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:41,742 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:41,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 19:54:41,802 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:54:41,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:41,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:54:41,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:41,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:41,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:42,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235437368] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:42,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:42,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2024-10-11 19:54:42,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730948435] [2024-10-11 19:54:42,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:42,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 19:54:42,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:42,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 19:54:42,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-10-11 19:54:42,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:42,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 941 transitions, 21283 flow. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:42,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:42,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:42,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:45,935 INFO L124 PetriNetUnfolderBase]: 7446/11264 cut-off events. [2024-10-11 19:54:45,936 INFO L125 PetriNetUnfolderBase]: For 425190/425190 co-relation queries the response was YES. [2024-10-11 19:54:46,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115001 conditions, 11264 events. 7446/11264 cut-off events. For 425190/425190 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 69721 event pairs, 1209 based on Foata normal form. 41/11305 useless extension candidates. Maximal degree in co-relation 114542. Up to 5115 conditions per place. [2024-10-11 19:54:46,086 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 663 selfloop transitions, 633 changer transitions 0/1297 dead transitions. [2024-10-11 19:54:46,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 1297 transitions, 30200 flow [2024-10-11 19:54:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 19:54:46,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-11 19:54:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 400 transitions. [2024-10-11 19:54:46,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5291005291005291 [2024-10-11 19:54:46,087 INFO L175 Difference]: Start difference. First operand has 332 places, 941 transitions, 21283 flow. Second operand 28 states and 400 transitions. [2024-10-11 19:54:46,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 1297 transitions, 30200 flow [2024-10-11 19:54:49,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1297 transitions, 29556 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-10-11 19:54:49,664 INFO L231 Difference]: Finished difference. Result has 372 places, 1075 transitions, 26228 flow [2024-10-11 19:54:49,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=20689, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=26228, PETRI_PLACES=372, PETRI_TRANSITIONS=1075} [2024-10-11 19:54:49,665 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 342 predicate places. [2024-10-11 19:54:49,665 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 1075 transitions, 26228 flow [2024-10-11 19:54:49,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:49,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:49,666 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:49,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-11 19:54:49,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:49,870 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:49,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash 745168105, now seen corresponding path program 6 times [2024-10-11 19:54:49,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:49,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078849698] [2024-10-11 19:54:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:49,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:49,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:49,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078849698] [2024-10-11 19:54:49,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078849698] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:54:49,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178132955] [2024-10-11 19:54:49,967 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 19:54:49,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 19:54:49,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:54:49,969 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 19:54:49,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 19:54:50,031 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-11 19:54:50,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:54:50,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:54:50,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:54:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:50,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:54:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:50,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178132955] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:54:50,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 19:54:50,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-11 19:54:50,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144374596] [2024-10-11 19:54:50,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 19:54:50,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 19:54:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 19:54:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 19:54:50,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:50,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 1075 transitions, 26228 flow. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:50,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:50,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:50,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:54:54,008 INFO L124 PetriNetUnfolderBase]: 7537/11393 cut-off events. [2024-10-11 19:54:54,008 INFO L125 PetriNetUnfolderBase]: For 477748/477748 co-relation queries the response was YES. [2024-10-11 19:54:54,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122906 conditions, 11393 events. 7537/11393 cut-off events. For 477748/477748 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 70269 event pairs, 2110 based on Foata normal form. 28/11421 useless extension candidates. Maximal degree in co-relation 122436. Up to 10446 conditions per place. [2024-10-11 19:54:54,170 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 986 selfloop transitions, 144 changer transitions 0/1131 dead transitions. [2024-10-11 19:54:54,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1131 transitions, 29335 flow [2024-10-11 19:54:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:54:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:54:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 102 transitions. [2024-10-11 19:54:54,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2024-10-11 19:54:54,171 INFO L175 Difference]: Start difference. First operand has 372 places, 1075 transitions, 26228 flow. Second operand 7 states and 102 transitions. [2024-10-11 19:54:54,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1131 transitions, 29335 flow [2024-10-11 19:54:58,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1131 transitions, 28736 flow, removed 203 selfloop flow, removed 6 redundant places. [2024-10-11 19:54:58,050 INFO L231 Difference]: Finished difference. Result has 375 places, 1089 transitions, 26298 flow [2024-10-11 19:54:58,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=25669, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26298, PETRI_PLACES=375, PETRI_TRANSITIONS=1089} [2024-10-11 19:54:58,052 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 345 predicate places. [2024-10-11 19:54:58,052 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 1089 transitions, 26298 flow [2024-10-11 19:54:58,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:58,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:54:58,052 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:54:58,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-11 19:54:58,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 19:54:58,253 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:54:58,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:54:58,253 INFO L85 PathProgramCache]: Analyzing trace with hash 34825022, now seen corresponding path program 15 times [2024-10-11 19:54:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:54:58,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271386783] [2024-10-11 19:54:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:54:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:54:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:54:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:54:58,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:54:58,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271386783] [2024-10-11 19:54:58,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271386783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:54:58,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:54:58,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:54:58,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510273474] [2024-10-11 19:54:58,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:54:58,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:54:58,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:54:58,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:54:58,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:54:58,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:54:58,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1089 transitions, 26298 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:54:58,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:54:58,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:54:58,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:02,127 INFO L124 PetriNetUnfolderBase]: 7543/11403 cut-off events. [2024-10-11 19:55:02,127 INFO L125 PetriNetUnfolderBase]: For 467267/467267 co-relation queries the response was YES. [2024-10-11 19:55:02,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121957 conditions, 11403 events. 7543/11403 cut-off events. For 467267/467267 co-relation queries the response was YES. Maximal size of possible extension queue 787. Compared 70378 event pairs, 2121 based on Foata normal form. 2/11405 useless extension candidates. Maximal degree in co-relation 121485. Up to 10504 conditions per place. [2024-10-11 19:55:02,343 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 975 selfloop transitions, 148 changer transitions 2/1126 dead transitions. [2024-10-11 19:55:02,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 1126 transitions, 29062 flow [2024-10-11 19:55:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:55:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:55:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 89 transitions. [2024-10-11 19:55:02,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4708994708994709 [2024-10-11 19:55:02,344 INFO L175 Difference]: Start difference. First operand has 375 places, 1089 transitions, 26298 flow. Second operand 7 states and 89 transitions. [2024-10-11 19:55:02,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 1126 transitions, 29062 flow [2024-10-11 19:55:06,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1126 transitions, 28792 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-11 19:55:06,592 INFO L231 Difference]: Finished difference. Result has 380 places, 1093 transitions, 26451 flow [2024-10-11 19:55:06,596 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=26045, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26451, PETRI_PLACES=380, PETRI_TRANSITIONS=1093} [2024-10-11 19:55:06,596 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 350 predicate places. [2024-10-11 19:55:06,597 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 1093 transitions, 26451 flow [2024-10-11 19:55:06,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:06,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:06,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:06,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 19:55:06,597 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:06,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:06,598 INFO L85 PathProgramCache]: Analyzing trace with hash 742477048, now seen corresponding path program 4 times [2024-10-11 19:55:06,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:06,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16949750] [2024-10-11 19:55:06,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:06,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:06,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:06,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16949750] [2024-10-11 19:55:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16949750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:06,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:06,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:55:06,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021740557] [2024-10-11 19:55:06,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:06,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:55:06,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:55:06,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:55:06,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-10-11 19:55:06,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1093 transitions, 26451 flow. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:06,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:06,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-10-11 19:55:06,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:10,314 INFO L124 PetriNetUnfolderBase]: 7551/11443 cut-off events. [2024-10-11 19:55:10,314 INFO L125 PetriNetUnfolderBase]: For 469232/469232 co-relation queries the response was YES. [2024-10-11 19:55:10,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122314 conditions, 11443 events. 7551/11443 cut-off events. For 469232/469232 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 70950 event pairs, 2128 based on Foata normal form. 16/11459 useless extension candidates. Maximal degree in co-relation 121840. Up to 10486 conditions per place. [2024-10-11 19:55:10,477 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 994 selfloop transitions, 125 changer transitions 11/1131 dead transitions. [2024-10-11 19:55:10,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1131 transitions, 29149 flow [2024-10-11 19:55:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:55:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:55:10,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 100 transitions. [2024-10-11 19:55:10,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5291005291005291 [2024-10-11 19:55:10,478 INFO L175 Difference]: Start difference. First operand has 380 places, 1093 transitions, 26451 flow. Second operand 7 states and 100 transitions. [2024-10-11 19:55:10,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 1131 transitions, 29149 flow