/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:29:41,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:29:42,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 11:29:42,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:29:42,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:29:42,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:29:42,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:29:42,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:29:42,103 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:29:42,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:29:42,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:29:42,107 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:29:42,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:29:42,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:29:42,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:29:42,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:29:42,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:29:42,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:29:42,110 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:29:42,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:29:42,110 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:29:42,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:29:42,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:29:42,111 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:29:42,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:29:42,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:29:42,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:29:42,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:29:42,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:29:42,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:29:42,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:29:42,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:29:42,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:29:42,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:29:42,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:29:42,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:29:42,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:29:42,360 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:29:42,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-17 11:29:43,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:29:43,832 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:29:43,832 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-17 11:29:43,848 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43aceb979/cedb4b1ad12c4034975d60ec0dd949c0/FLAG3b9ed181c [2023-11-17 11:29:43,865 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43aceb979/cedb4b1ad12c4034975d60ec0dd949c0 [2023-11-17 11:29:43,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:29:43,869 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:29:43,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:29:43,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:29:43,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:29:43,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:29:43" (1/1) ... [2023-11-17 11:29:43,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752a1cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:43, skipping insertion in model container [2023-11-17 11:29:43,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:29:43" (1/1) ... [2023-11-17 11:29:43,933 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:29:44,067 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-17 11:29:44,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:29:44,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:29:44,249 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-17 11:29:44,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:29:44,316 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:29:44,317 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:29:44,323 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:29:44,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44 WrapperNode [2023-11-17 11:29:44,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:29:44,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:29:44,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:29:44,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:29:44,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,390 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-11-17 11:29:44,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:29:44,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:29:44,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:29:44,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:29:44,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:29:44,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:29:44,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:29:44,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:29:44,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (1/1) ... [2023-11-17 11:29:44,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:29:44,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:29:44,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 11:29:44,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 11:29:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:29:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 11:29:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:29:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:29:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:29:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-17 11:29:44,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-17 11:29:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-17 11:29:44,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-17 11:29:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-17 11:29:44,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-17 11:29:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-17 11:29:44,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-17 11:29:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:29:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 11:29:44,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:29:44,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:29:44,502 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:29:44,634 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:29:44,636 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:29:44,778 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:29:44,867 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:29:44,867 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:29:44,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:29:44 BoogieIcfgContainer [2023-11-17 11:29:44,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:29:44,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:29:44,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:29:44,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:29:44,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:29:43" (1/3) ... [2023-11-17 11:29:44,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c1a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:29:44, skipping insertion in model container [2023-11-17 11:29:44,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:29:44" (2/3) ... [2023-11-17 11:29:44,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c1a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:29:44, skipping insertion in model container [2023-11-17 11:29:44,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:29:44" (3/3) ... [2023-11-17 11:29:44,876 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-17 11:29:44,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:29:44,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 11:29:44,927 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:29:44,969 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 11:29:45,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2023-11-17 11:29:45,035 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2023-11-17 11:29:45,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:29:45,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-11-17 11:29:45,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2023-11-17 11:29:45,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2023-11-17 11:29:45,045 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:29:45,056 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 38 transitions, 88 flow [2023-11-17 11:29:45,059 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 38 transitions, 88 flow [2023-11-17 11:29:45,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 38 transitions, 88 flow [2023-11-17 11:29:45,073 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2023-11-17 11:29:45,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:29:45,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-17 11:29:45,076 INFO L119 LiptonReduction]: Number of co-enabled transitions 850 [2023-11-17 11:29:45,581 INFO L134 LiptonReduction]: Checked pairs total: 1186 [2023-11-17 11:29:45,581 INFO L136 LiptonReduction]: Total number of compositions: 18 [2023-11-17 11:29:45,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:29:45,616 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5d6f66ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:29:45,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 11:29:45,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:29:45,627 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-17 11:29:45,628 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:29:45,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:45,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:45,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:45,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:45,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1595492765, now seen corresponding path program 1 times [2023-11-17 11:29:45,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:45,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452107165] [2023-11-17 11:29:45,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:45,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:46,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:46,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452107165] [2023-11-17 11:29:46,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452107165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:46,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:46,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 11:29:46,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391861142] [2023-11-17 11:29:46,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:46,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:29:46,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:46,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:29:46,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:29:46,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:46,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:46,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:46,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:46,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:46,498 INFO L124 PetriNetUnfolderBase]: 1299/1851 cut-off events. [2023-11-17 11:29:46,498 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-11-17 11:29:46,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3838 conditions, 1851 events. 1299/1851 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7518 event pairs, 339 based on Foata normal form. 9/1860 useless extension candidates. Maximal degree in co-relation 3826. Up to 1795 conditions per place. [2023-11-17 11:29:46,516 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 30 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-11-17 11:29:46,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 153 flow [2023-11-17 11:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:29:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:29:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2023-11-17 11:29:46,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.544973544973545 [2023-11-17 11:29:46,529 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 103 transitions. [2023-11-17 11:29:46,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 103 transitions. [2023-11-17 11:29:46,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:46,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 103 transitions. [2023-11-17 11:29:46,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:46,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:46,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:46,543 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 52 flow. Second operand 3 states and 103 transitions. [2023-11-17 11:29:46,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 153 flow [2023-11-17 11:29:46,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-17 11:29:46,549 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 67 flow [2023-11-17 11:29:46,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-11-17 11:29:46,553 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-11-17 11:29:46,554 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 67 flow [2023-11-17 11:29:46,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:46,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:46,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:46,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:29:46,555 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:46,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:46,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2079331818, now seen corresponding path program 1 times [2023-11-17 11:29:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231571513] [2023-11-17 11:29:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:46,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:46,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231571513] [2023-11-17 11:29:46,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231571513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:46,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:46,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:29:46,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142985435] [2023-11-17 11:29:46,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:46,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:29:46,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:46,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:29:46,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:29:46,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 63 [2023-11-17 11:29:46,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:46,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:46,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 63 [2023-11-17 11:29:46,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:47,055 INFO L124 PetriNetUnfolderBase]: 1551/2211 cut-off events. [2023-11-17 11:29:47,056 INFO L125 PetriNetUnfolderBase]: For 349/349 co-relation queries the response was YES. [2023-11-17 11:29:47,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5026 conditions, 2211 events. 1551/2211 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 8999 event pairs, 174 based on Foata normal form. 36/2247 useless extension candidates. Maximal degree in co-relation 5015. Up to 1138 conditions per place. [2023-11-17 11:29:47,070 INFO L140 encePairwiseOnDemand]: 56/63 looper letters, 43 selfloop transitions, 13 changer transitions 0/56 dead transitions. [2023-11-17 11:29:47,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 56 transitions, 269 flow [2023-11-17 11:29:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 11:29:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 11:29:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2023-11-17 11:29:47,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526984126984127 [2023-11-17 11:29:47,073 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 166 transitions. [2023-11-17 11:29:47,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 166 transitions. [2023-11-17 11:29:47,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:47,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 166 transitions. [2023-11-17 11:29:47,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,076 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,076 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 67 flow. Second operand 5 states and 166 transitions. [2023-11-17 11:29:47,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 56 transitions, 269 flow [2023-11-17 11:29:47,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:29:47,079 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 159 flow [2023-11-17 11:29:47,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=159, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-11-17 11:29:47,080 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2023-11-17 11:29:47,080 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 159 flow [2023-11-17 11:29:47,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:47,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:47,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:29:47,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:47,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2079331787, now seen corresponding path program 1 times [2023-11-17 11:29:47,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:47,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2756786] [2023-11-17 11:29:47,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:47,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:47,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:47,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2756786] [2023-11-17 11:29:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2756786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:47,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:47,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:29:47,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498645247] [2023-11-17 11:29:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:47,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:29:47,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:29:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:29:47,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:47,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:47,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:47,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:47,422 INFO L124 PetriNetUnfolderBase]: 1416/2022 cut-off events. [2023-11-17 11:29:47,422 INFO L125 PetriNetUnfolderBase]: For 1899/1899 co-relation queries the response was YES. [2023-11-17 11:29:47,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6198 conditions, 2022 events. 1416/2022 cut-off events. For 1899/1899 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8061 event pairs, 495 based on Foata normal form. 27/2049 useless extension candidates. Maximal degree in co-relation 6183. Up to 1765 conditions per place. [2023-11-17 11:29:47,437 INFO L140 encePairwiseOnDemand]: 60/63 looper letters, 41 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-11-17 11:29:47,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 296 flow [2023-11-17 11:29:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:29:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:29:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2023-11-17 11:29:47,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5502645502645502 [2023-11-17 11:29:47,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 104 transitions. [2023-11-17 11:29:47,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 104 transitions. [2023-11-17 11:29:47,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:47,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 104 transitions. [2023-11-17 11:29:47,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,443 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 159 flow. Second operand 3 states and 104 transitions. [2023-11-17 11:29:47,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 296 flow [2023-11-17 11:29:47,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:29:47,449 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 169 flow [2023-11-17 11:29:47,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-11-17 11:29:47,450 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2023-11-17 11:29:47,451 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 169 flow [2023-11-17 11:29:47,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:47,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:47,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:29:47,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:47,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:47,452 INFO L85 PathProgramCache]: Analyzing trace with hash -34777054, now seen corresponding path program 1 times [2023-11-17 11:29:47,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:47,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980855115] [2023-11-17 11:29:47,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:47,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:47,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:47,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980855115] [2023-11-17 11:29:47,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980855115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:47,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:47,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:29:47,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691502841] [2023-11-17 11:29:47,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:47,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:29:47,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:47,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:29:47,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 11:29:47,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 63 [2023-11-17 11:29:47,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:47,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 63 [2023-11-17 11:29:47,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:47,850 INFO L124 PetriNetUnfolderBase]: 1584/2289 cut-off events. [2023-11-17 11:29:47,850 INFO L125 PetriNetUnfolderBase]: For 3275/3275 co-relation queries the response was YES. [2023-11-17 11:29:47,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6831 conditions, 2289 events. 1584/2289 cut-off events. For 3275/3275 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9354 event pairs, 448 based on Foata normal form. 99/2388 useless extension candidates. Maximal degree in co-relation 6814. Up to 794 conditions per place. [2023-11-17 11:29:47,861 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 30 selfloop transitions, 5 changer transitions 14/49 dead transitions. [2023-11-17 11:29:47,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 329 flow [2023-11-17 11:29:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:29:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:29:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2023-11-17 11:29:47,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2023-11-17 11:29:47,864 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 128 transitions. [2023-11-17 11:29:47,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 128 transitions. [2023-11-17 11:29:47,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:47,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 128 transitions. [2023-11-17 11:29:47,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,867 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,868 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 169 flow. Second operand 4 states and 128 transitions. [2023-11-17 11:29:47,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 329 flow [2023-11-17 11:29:47,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 319 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:29:47,872 INFO L231 Difference]: Finished difference. Result has 43 places, 24 transitions, 130 flow [2023-11-17 11:29:47,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2023-11-17 11:29:47,874 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2023-11-17 11:29:47,874 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 24 transitions, 130 flow [2023-11-17 11:29:47,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:47,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:47,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:47,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:29:47,875 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:47,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:47,875 INFO L85 PathProgramCache]: Analyzing trace with hash -34778821, now seen corresponding path program 1 times [2023-11-17 11:29:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:47,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791164603] [2023-11-17 11:29:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:47,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:48,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:48,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791164603] [2023-11-17 11:29:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791164603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:48,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:48,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:29:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774181731] [2023-11-17 11:29:48,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:48,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:29:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:48,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:29:48,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:29:48,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:48,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 24 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:48,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:48,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:48,137 INFO L124 PetriNetUnfolderBase]: 636/939 cut-off events. [2023-11-17 11:29:48,137 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2023-11-17 11:29:48,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3023 conditions, 939 events. 636/939 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3262 event pairs, 333 based on Foata normal form. 18/957 useless extension candidates. Maximal degree in co-relation 3004. Up to 787 conditions per place. [2023-11-17 11:29:48,144 INFO L140 encePairwiseOnDemand]: 60/63 looper letters, 28 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-11-17 11:29:48,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 32 transitions, 216 flow [2023-11-17 11:29:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:29:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:29:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2023-11-17 11:29:48,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291005291005291 [2023-11-17 11:29:48,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 100 transitions. [2023-11-17 11:29:48,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 100 transitions. [2023-11-17 11:29:48,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:48,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 100 transitions. [2023-11-17 11:29:48,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,148 INFO L175 Difference]: Start difference. First operand has 43 places, 24 transitions, 130 flow. Second operand 3 states and 100 transitions. [2023-11-17 11:29:48,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 32 transitions, 216 flow [2023-11-17 11:29:48,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 32 transitions, 188 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-17 11:29:48,152 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 116 flow [2023-11-17 11:29:48,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2023-11-17 11:29:48,155 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2023-11-17 11:29:48,155 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 116 flow [2023-11-17 11:29:48,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:48,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:48,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 11:29:48,156 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:48,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1078055981, now seen corresponding path program 1 times [2023-11-17 11:29:48,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:48,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259989892] [2023-11-17 11:29:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:48,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:48,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:48,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:48,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259989892] [2023-11-17 11:29:48,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259989892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:48,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:48,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:29:48,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994807449] [2023-11-17 11:29:48,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:48,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:29:48,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:48,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:29:48,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 11:29:48,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 63 [2023-11-17 11:29:48,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:48,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 63 [2023-11-17 11:29:48,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:48,442 INFO L124 PetriNetUnfolderBase]: 803/1208 cut-off events. [2023-11-17 11:29:48,442 INFO L125 PetriNetUnfolderBase]: For 1867/1867 co-relation queries the response was YES. [2023-11-17 11:29:48,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3535 conditions, 1208 events. 803/1208 cut-off events. For 1867/1867 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5060 event pairs, 263 based on Foata normal form. 54/1262 useless extension candidates. Maximal degree in co-relation 3520. Up to 512 conditions per place. [2023-11-17 11:29:48,449 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 36 selfloop transitions, 5 changer transitions 11/52 dead transitions. [2023-11-17 11:29:48,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 339 flow [2023-11-17 11:29:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:29:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:29:48,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2023-11-17 11:29:48,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317460317460317 [2023-11-17 11:29:48,450 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 134 transitions. [2023-11-17 11:29:48,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 134 transitions. [2023-11-17 11:29:48,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:48,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 134 transitions. [2023-11-17 11:29:48,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,453 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,453 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 116 flow. Second operand 4 states and 134 transitions. [2023-11-17 11:29:48,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 339 flow [2023-11-17 11:29:48,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:29:48,457 INFO L231 Difference]: Finished difference. Result has 42 places, 24 transitions, 128 flow [2023-11-17 11:29:48,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2023-11-17 11:29:48,459 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2023-11-17 11:29:48,459 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 128 flow [2023-11-17 11:29:48,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:48,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:48,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 11:29:48,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:48,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:48,461 INFO L85 PathProgramCache]: Analyzing trace with hash 943784511, now seen corresponding path program 1 times [2023-11-17 11:29:48,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:48,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92913899] [2023-11-17 11:29:48,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:48,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:48,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92913899] [2023-11-17 11:29:48,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92913899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:48,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:48,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:29:48,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846721883] [2023-11-17 11:29:48,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:48,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:29:48,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:48,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:29:48,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:29:48,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:48,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:48,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:48,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:48,617 INFO L124 PetriNetUnfolderBase]: 305/489 cut-off events. [2023-11-17 11:29:48,618 INFO L125 PetriNetUnfolderBase]: For 1356/1390 co-relation queries the response was YES. [2023-11-17 11:29:48,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1700 conditions, 489 events. 305/489 cut-off events. For 1356/1390 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1853 event pairs, 97 based on Foata normal form. 12/483 useless extension candidates. Maximal degree in co-relation 1683. Up to 439 conditions per place. [2023-11-17 11:29:48,621 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 35 selfloop transitions, 5 changer transitions 0/41 dead transitions. [2023-11-17 11:29:48,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 293 flow [2023-11-17 11:29:48,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:29:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:29:48,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2023-11-17 11:29:48,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2023-11-17 11:29:48,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 102 transitions. [2023-11-17 11:29:48,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 102 transitions. [2023-11-17 11:29:48,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:48,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 102 transitions. [2023-11-17 11:29:48,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,624 INFO L175 Difference]: Start difference. First operand has 42 places, 24 transitions, 128 flow. Second operand 3 states and 102 transitions. [2023-11-17 11:29:48,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 293 flow [2023-11-17 11:29:48,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 268 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-17 11:29:48,627 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 145 flow [2023-11-17 11:29:48,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2023-11-17 11:29:48,630 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-11-17 11:29:48,630 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 145 flow [2023-11-17 11:29:48,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:48,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:48,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 11:29:48,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:48,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:48,632 INFO L85 PathProgramCache]: Analyzing trace with hash -96550497, now seen corresponding path program 1 times [2023-11-17 11:29:48,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:48,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300122866] [2023-11-17 11:29:48,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:48,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:48,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:48,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300122866] [2023-11-17 11:29:48,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300122866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:48,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:48,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:29:48,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508413143] [2023-11-17 11:29:48,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:48,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:29:48,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:29:48,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:29:48,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:48,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:48,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:48,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:48,797 INFO L124 PetriNetUnfolderBase]: 202/348 cut-off events. [2023-11-17 11:29:48,797 INFO L125 PetriNetUnfolderBase]: For 606/633 co-relation queries the response was YES. [2023-11-17 11:29:48,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 348 events. 202/348 cut-off events. For 606/633 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1255 event pairs, 33 based on Foata normal form. 32/369 useless extension candidates. Maximal degree in co-relation 1306. Up to 232 conditions per place. [2023-11-17 11:29:48,800 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 44 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-11-17 11:29:48,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 382 flow [2023-11-17 11:29:48,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:29:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:29:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2023-11-17 11:29:48,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2023-11-17 11:29:48,801 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 136 transitions. [2023-11-17 11:29:48,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 136 transitions. [2023-11-17 11:29:48,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:48,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 136 transitions. [2023-11-17 11:29:48,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,803 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,803 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 145 flow. Second operand 4 states and 136 transitions. [2023-11-17 11:29:48,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 382 flow [2023-11-17 11:29:48,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:29:48,805 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 192 flow [2023-11-17 11:29:48,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2023-11-17 11:29:48,806 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2023-11-17 11:29:48,806 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 192 flow [2023-11-17 11:29:48,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:48,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:48,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 11:29:48,806 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:48,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1301900172, now seen corresponding path program 1 times [2023-11-17 11:29:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:48,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920353030] [2023-11-17 11:29:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:48,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:48,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:48,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920353030] [2023-11-17 11:29:48,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920353030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:48,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:48,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 11:29:48,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376179289] [2023-11-17 11:29:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:48,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:29:48,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:29:48,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-17 11:29:48,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:48,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:48,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:48,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:48,983 INFO L124 PetriNetUnfolderBase]: 133/244 cut-off events. [2023-11-17 11:29:48,984 INFO L125 PetriNetUnfolderBase]: For 503/527 co-relation queries the response was YES. [2023-11-17 11:29:48,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 244 events. 133/244 cut-off events. For 503/527 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 794 event pairs, 13 based on Foata normal form. 34/272 useless extension candidates. Maximal degree in co-relation 1048. Up to 131 conditions per place. [2023-11-17 11:29:48,986 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 47 selfloop transitions, 13 changer transitions 0/61 dead transitions. [2023-11-17 11:29:48,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 472 flow [2023-11-17 11:29:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 11:29:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 11:29:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2023-11-17 11:29:48,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526984126984127 [2023-11-17 11:29:48,987 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 166 transitions. [2023-11-17 11:29:48,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 166 transitions. [2023-11-17 11:29:48,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:48,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 166 transitions. [2023-11-17 11:29:48,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,989 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,989 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 192 flow. Second operand 5 states and 166 transitions. [2023-11-17 11:29:48,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 472 flow [2023-11-17 11:29:48,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 454 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-17 11:29:48,991 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 242 flow [2023-11-17 11:29:48,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2023-11-17 11:29:48,992 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2023-11-17 11:29:48,992 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 242 flow [2023-11-17 11:29:48,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:48,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:48,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:48,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 11:29:48,993 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:48,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash -230219835, now seen corresponding path program 1 times [2023-11-17 11:29:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:48,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169069216] [2023-11-17 11:29:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:49,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:49,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:49,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169069216] [2023-11-17 11:29:49,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169069216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:49,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:49,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 11:29:49,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345831814] [2023-11-17 11:29:49,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:49,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:29:49,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:49,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:29:49,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 11:29:49,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 63 [2023-11-17 11:29:49,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:49,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 63 [2023-11-17 11:29:49,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:49,239 INFO L124 PetriNetUnfolderBase]: 203/368 cut-off events. [2023-11-17 11:29:49,239 INFO L125 PetriNetUnfolderBase]: For 1007/1007 co-relation queries the response was YES. [2023-11-17 11:29:49,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 368 events. 203/368 cut-off events. For 1007/1007 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1281 event pairs, 26 based on Foata normal form. 6/374 useless extension candidates. Maximal degree in co-relation 1664. Up to 189 conditions per place. [2023-11-17 11:29:49,241 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 44 selfloop transitions, 7 changer transitions 18/69 dead transitions. [2023-11-17 11:29:49,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 69 transitions, 613 flow [2023-11-17 11:29:49,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 11:29:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 11:29:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 174 transitions. [2023-11-17 11:29:49,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2023-11-17 11:29:49,243 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 174 transitions. [2023-11-17 11:29:49,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 174 transitions. [2023-11-17 11:29:49,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:49,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 174 transitions. [2023-11-17 11:29:49,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,244 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,245 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 242 flow. Second operand 6 states and 174 transitions. [2023-11-17 11:29:49,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 69 transitions, 613 flow [2023-11-17 11:29:49,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 533 flow, removed 16 selfloop flow, removed 3 redundant places. [2023-11-17 11:29:49,248 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 237 flow [2023-11-17 11:29:49,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2023-11-17 11:29:49,249 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2023-11-17 11:29:49,249 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 237 flow [2023-11-17 11:29:49,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:49,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 11:29:49,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:49,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:49,250 INFO L85 PathProgramCache]: Analyzing trace with hash 913560977, now seen corresponding path program 2 times [2023-11-17 11:29:49,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:49,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736196182] [2023-11-17 11:29:49,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:49,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:49,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:49,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:49,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736196182] [2023-11-17 11:29:49,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736196182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:49,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:49,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 11:29:49,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640522032] [2023-11-17 11:29:49,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:49,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 11:29:49,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:49,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 11:29:49,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-17 11:29:49,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2023-11-17 11:29:49,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:49,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2023-11-17 11:29:49,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:49,431 INFO L124 PetriNetUnfolderBase]: 160/291 cut-off events. [2023-11-17 11:29:49,431 INFO L125 PetriNetUnfolderBase]: For 640/689 co-relation queries the response was YES. [2023-11-17 11:29:49,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 291 events. 160/291 cut-off events. For 640/689 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1094 event pairs, 10 based on Foata normal form. 32/315 useless extension candidates. Maximal degree in co-relation 1161. Up to 96 conditions per place. [2023-11-17 11:29:49,433 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 29 selfloop transitions, 17 changer transitions 15/62 dead transitions. [2023-11-17 11:29:49,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 515 flow [2023-11-17 11:29:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 11:29:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 11:29:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2023-11-17 11:29:49,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-17 11:29:49,435 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 189 transitions. [2023-11-17 11:29:49,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 189 transitions. [2023-11-17 11:29:49,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:49,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 189 transitions. [2023-11-17 11:29:49,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,436 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 237 flow. Second operand 6 states and 189 transitions. [2023-11-17 11:29:49,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 515 flow [2023-11-17 11:29:49,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 468 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-17 11:29:49,440 INFO L231 Difference]: Finished difference. Result has 52 places, 32 transitions, 214 flow [2023-11-17 11:29:49,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=52, PETRI_TRANSITIONS=32} [2023-11-17 11:29:49,441 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2023-11-17 11:29:49,441 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 32 transitions, 214 flow [2023-11-17 11:29:49,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:29:49,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:49,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-17 11:29:49,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:29:49,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:29:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2055950908, now seen corresponding path program 1 times [2023-11-17 11:29:49,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:29:49,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299930714] [2023-11-17 11:29:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:29:49,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:29:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:29:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:29:49,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:29:49,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299930714] [2023-11-17 11:29:49,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299930714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:29:49,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:29:49,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:29:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966435049] [2023-11-17 11:29:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:29:49,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:29:49,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:29:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:29:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:29:49,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 63 [2023-11-17 11:29:49,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 32 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 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) [2023-11-17 11:29:49,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:29:49,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 63 [2023-11-17 11:29:49,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:29:49,610 INFO L124 PetriNetUnfolderBase]: 87/172 cut-off events. [2023-11-17 11:29:49,610 INFO L125 PetriNetUnfolderBase]: For 422/422 co-relation queries the response was YES. [2023-11-17 11:29:49,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 172 events. 87/172 cut-off events. For 422/422 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 489 event pairs, 12 based on Foata normal form. 1/173 useless extension candidates. Maximal degree in co-relation 742. Up to 89 conditions per place. [2023-11-17 11:29:49,611 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2023-11-17 11:29:49,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 389 flow [2023-11-17 11:29:49,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 11:29:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 11:29:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2023-11-17 11:29:49,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44126984126984126 [2023-11-17 11:29:49,613 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 139 transitions. [2023-11-17 11:29:49,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 139 transitions. [2023-11-17 11:29:49,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:29:49,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 139 transitions. [2023-11-17 11:29:49,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,614 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:29:49,615 INFO L175 Difference]: Start difference. First operand has 52 places, 32 transitions, 214 flow. Second operand 5 states and 139 transitions. [2023-11-17 11:29:49,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 389 flow [2023-11-17 11:29:49,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 46 transitions, 312 flow, removed 16 selfloop flow, removed 7 redundant places. [2023-11-17 11:29:49,617 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-11-17 11:29:49,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-11-17 11:29:49,618 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2023-11-17 11:29:49,618 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-11-17 11:29:49,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 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) [2023-11-17 11:29:49,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 11:29:49,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-11-17 11:29:49,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-17 11:29:49,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-17 11:29:49,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-17 11:29:49,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-17 11:29:49,622 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:29:49,624 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:29:49,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:29:49,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:29:49 BasicIcfg [2023-11-17 11:29:49,627 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:29:49,628 INFO L158 Benchmark]: Toolchain (without parser) took 5759.34ms. Allocated memory was 192.9MB in the beginning and 302.0MB in the end (delta: 109.1MB). Free memory was 145.4MB in the beginning and 116.0MB in the end (delta: 29.4MB). Peak memory consumption was 139.4MB. Max. memory is 8.0GB. [2023-11-17 11:29:49,628 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:29:49,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.18ms. Allocated memory is still 192.9MB. Free memory was 145.0MB in the beginning and 124.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-11-17 11:29:49,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.67ms. Allocated memory is still 192.9MB. Free memory was 124.4MB in the beginning and 122.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:29:49,629 INFO L158 Benchmark]: Boogie Preprocessor took 42.19ms. Allocated memory is still 192.9MB. Free memory was 122.3MB in the beginning and 120.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 11:29:49,629 INFO L158 Benchmark]: RCFGBuilder took 434.88ms. Allocated memory is still 192.9MB. Free memory was 120.9MB in the beginning and 97.6MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-11-17 11:29:49,629 INFO L158 Benchmark]: TraceAbstraction took 4756.40ms. Allocated memory was 192.9MB in the beginning and 302.0MB in the end (delta: 109.1MB). Free memory was 96.8MB in the beginning and 116.0MB in the end (delta: -19.3MB). Peak memory consumption was 91.1MB. Max. memory is 8.0GB. [2023-11-17 11:29:49,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 453.18ms. Allocated memory is still 192.9MB. Free memory was 145.0MB in the beginning and 124.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.67ms. Allocated memory is still 192.9MB. Free memory was 124.4MB in the beginning and 122.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.19ms. Allocated memory is still 192.9MB. Free memory was 122.3MB in the beginning and 120.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 434.88ms. Allocated memory is still 192.9MB. Free memory was 120.9MB in the beginning and 97.6MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 4756.40ms. Allocated memory was 192.9MB in the beginning and 302.0MB in the end (delta: 109.1MB). Free memory was 96.8MB in the beginning and 116.0MB in the end (delta: -19.3MB). Peak memory consumption was 91.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5s, 51 PlacesBefore, 33 PlacesAfterwards, 38 TransitionsBefore, 20 TransitionsAfterwards, 850 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 1186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 713, independent: 668, independent conditional: 0, independent unconditional: 668, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 508, independent: 477, independent conditional: 0, independent unconditional: 477, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 508, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 713, independent: 191, independent conditional: 0, independent unconditional: 191, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 508, unknown conditional: 0, unknown unconditional: 508] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 605 IncrementalHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 6 mSDtfsCounter, 605 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=9, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 11:29:49,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...