/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:31:49,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:31:50,052 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 15:31:50,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:31:50,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:31:50,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:31:50,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:31:50,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:31:50,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:31:50,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:31:50,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:31:50,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:31:50,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:31:50,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:31:50,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:31:50,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:31:50,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:31:50,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:31:50,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:31:50,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:31:50,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:31:50,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:31:50,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:31:50,099 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:31:50,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:31:50,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:31:50,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:31:50,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:31:50,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:31:50,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:31:50,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:31:50,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:31:50,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:31:50,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:31:50,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:31:50,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:31:50,355 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:31:50,356 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:31:50,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-11-17 15:31:51,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:31:51,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:31:51,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-11-17 15:31:51,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9727f7a/767a9e7eb4c34a1189a85c0c457bc852/FLAG4c9aedf42 [2023-11-17 15:31:51,786 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9727f7a/767a9e7eb4c34a1189a85c0c457bc852 [2023-11-17 15:31:51,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:31:51,789 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:31:51,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:31:51,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:31:51,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:31:51,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:31:51" (1/1) ... [2023-11-17 15:31:51,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b91de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:51, skipping insertion in model container [2023-11-17 15:31:51,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:31:51" (1/1) ... [2023-11-17 15:31:51,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:31:52,011 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-11-17 15:31:52,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:31:52,197 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:31:52,209 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2023-11-17 15:31:52,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:31:52,268 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:31:52,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52 WrapperNode [2023-11-17 15:31:52,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:31:52,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:31:52,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:31:52,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:31:52,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,335 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 89 [2023-11-17 15:31:52,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:31:52,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:31:52,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:31:52,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:31:52,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:31:52,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:31:52,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:31:52,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:31:52,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (1/1) ... [2023-11-17 15:31:52,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:31:52,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:31:52,406 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 15:31:52,431 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 15:31:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:31:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:31:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:31:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:31:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:31:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 15:31:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 15:31:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:31:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:31:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:31:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:31:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:31:52,441 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 15:31:52,588 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:31:52,590 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:31:52,744 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:31:52,764 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:31:52,764 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 15:31:52,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:31:52 BoogieIcfgContainer [2023-11-17 15:31:52,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:31:52,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:31:52,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:31:52,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:31:52,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:31:51" (1/3) ... [2023-11-17 15:31:52,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fcfee4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:31:52, skipping insertion in model container [2023-11-17 15:31:52,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:52" (2/3) ... [2023-11-17 15:31:52,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fcfee4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:31:52, skipping insertion in model container [2023-11-17 15:31:52,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:31:52" (3/3) ... [2023-11-17 15:31:52,773 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-11-17 15:31:52,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:31:52,786 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-17 15:31:52,786 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:31:52,832 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 15:31:52,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 104 transitions, 215 flow [2023-11-17 15:31:52,913 INFO L124 PetriNetUnfolderBase]: 4/103 cut-off events. [2023-11-17 15:31:52,913 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:31:52,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 4/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-11-17 15:31:52,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 104 transitions, 215 flow [2023-11-17 15:31:52,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 95 transitions, 193 flow [2023-11-17 15:31:52,926 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:31:52,936 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 95 transitions, 193 flow [2023-11-17 15:31:52,938 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 95 transitions, 193 flow [2023-11-17 15:31:52,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 95 transitions, 193 flow [2023-11-17 15:31:52,961 INFO L124 PetriNetUnfolderBase]: 4/95 cut-off events. [2023-11-17 15:31:52,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:31:52,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 4/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-11-17 15:31:52,963 INFO L119 LiptonReduction]: Number of co-enabled transitions 1426 [2023-11-17 15:31:55,781 INFO L134 LiptonReduction]: Checked pairs total: 3502 [2023-11-17 15:31:55,781 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-11-17 15:31:55,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:31:55,804 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;@27355164, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:31:55,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-17 15:31:55,805 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:31:55,805 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-17 15:31:55,806 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:31:55,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:55,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-17 15:31:55,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:55,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:55,811 INFO L85 PathProgramCache]: Analyzing trace with hash 409, now seen corresponding path program 1 times [2023-11-17 15:31:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:55,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653719242] [2023-11-17 15:31:55,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:55,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:55,909 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 15:31:55,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:55,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653719242] [2023-11-17 15:31:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653719242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:55,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:55,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-17 15:31:55,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788156768] [2023-11-17 15:31:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:55,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:31:55,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:31:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:31:55,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 207 [2023-11-17 15:31:55,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 22 transitions, 47 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 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 15:31:55,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:55,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 207 [2023-11-17 15:31:55,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:55,990 INFO L124 PetriNetUnfolderBase]: 64/146 cut-off events. [2023-11-17 15:31:55,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:31:55,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 146 events. 64/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 475 event pairs, 64 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 288. Up to 147 conditions per place. [2023-11-17 15:31:55,992 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 18 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-11-17 15:31:55,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 75 flow [2023-11-17 15:31:55,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:31:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:31:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2023-11-17 15:31:56,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48792270531400966 [2023-11-17 15:31:56,011 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2023-11-17 15:31:56,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2023-11-17 15:31:56,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:56,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2023-11-17 15:31:56,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 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 15:31:56,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 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 15:31:56,022 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 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 15:31:56,024 INFO L175 Difference]: Start difference. First operand has 23 places, 22 transitions, 47 flow. Second operand 2 states and 202 transitions. [2023-11-17 15:31:56,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 75 flow [2023-11-17 15:31:56,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:31:56,027 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 38 flow [2023-11-17 15:31:56,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-11-17 15:31:56,032 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2023-11-17 15:31:56,032 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 38 flow [2023-11-17 15:31:56,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 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 15:31:56,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:56,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-17 15:31:56,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:31:56,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:56,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 12430705, now seen corresponding path program 1 times [2023-11-17 15:31:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:56,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723029301] [2023-11-17 15:31:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:56,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:56,265 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 15:31:56,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:56,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723029301] [2023-11-17 15:31:56,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723029301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:56,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:56,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:31:56,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476126732] [2023-11-17 15:31:56,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:56,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:31:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:56,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:31:56,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:31:56,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 207 [2023-11-17 15:31:56,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 15:31:56,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:56,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 207 [2023-11-17 15:31:56,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:56,313 INFO L124 PetriNetUnfolderBase]: 61/140 cut-off events. [2023-11-17 15:31:56,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:31:56,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 140 events. 61/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 454 event pairs, 34 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 282. Up to 127 conditions per place. [2023-11-17 15:31:56,315 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 21 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-11-17 15:31:56,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 98 flow [2023-11-17 15:31:56,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:31:56,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:31:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-11-17 15:31:56,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219001610305958 [2023-11-17 15:31:56,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-11-17 15:31:56,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-11-17 15:31:56,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:56,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-11-17 15:31:56,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 15:31:56,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 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 15:31:56,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 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 15:31:56,321 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 38 flow. Second operand 3 states and 262 transitions. [2023-11-17 15:31:56,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 98 flow [2023-11-17 15:31:56,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:31:56,322 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 57 flow [2023-11-17 15:31:56,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-11-17 15:31:56,323 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2023-11-17 15:31:56,323 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 57 flow [2023-11-17 15:31:56,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 15:31:56,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:56,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:31:56,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:31:56,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:56,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash -938962501, now seen corresponding path program 1 times [2023-11-17 15:31:56,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:56,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294283940] [2023-11-17 15:31:56,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:56,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:56,486 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 15:31:56,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:56,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294283940] [2023-11-17 15:31:56,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294283940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:56,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:56,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:31:56,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793071358] [2023-11-17 15:31:56,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:56,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 15:31:56,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 15:31:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:31:56,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 207 [2023-11-17 15:31:56,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 0 states have call successors, (0), 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 15:31:56,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:56,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 207 [2023-11-17 15:31:56,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:56,615 INFO L124 PetriNetUnfolderBase]: 73/168 cut-off events. [2023-11-17 15:31:56,615 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-17 15:31:56,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 168 events. 73/168 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 615 event pairs, 20 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 371. Up to 106 conditions per place. [2023-11-17 15:31:56,621 INFO L140 encePairwiseOnDemand]: 200/207 looper letters, 31 selfloop transitions, 9 changer transitions 3/43 dead transitions. [2023-11-17 15:31:56,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 198 flow [2023-11-17 15:31:56,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:31:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:31:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 500 transitions. [2023-11-17 15:31:56,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4025764895330113 [2023-11-17 15:31:56,626 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 500 transitions. [2023-11-17 15:31:56,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 500 transitions. [2023-11-17 15:31:56,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:56,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 500 transitions. [2023-11-17 15:31:56,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 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 15:31:56,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 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 15:31:56,634 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 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 15:31:56,634 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 57 flow. Second operand 6 states and 500 transitions. [2023-11-17 15:31:56,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 198 flow [2023-11-17 15:31:56,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 43 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:31:56,636 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 112 flow [2023-11-17 15:31:56,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-11-17 15:31:56,638 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 9 predicate places. [2023-11-17 15:31:56,638 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 112 flow [2023-11-17 15:31:56,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 0 states have call successors, (0), 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 15:31:56,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:56,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:31:56,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:31:56,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:56,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash -939011204, now seen corresponding path program 1 times [2023-11-17 15:31:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:56,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922543244] [2023-11-17 15:31:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:56,715 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 15:31:56,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:56,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922543244] [2023-11-17 15:31:56,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922543244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:56,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:56,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:31:56,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868356532] [2023-11-17 15:31:56,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:56,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:31:56,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:56,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:31:56,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:31:56,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 207 [2023-11-17 15:31:56,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 15:31:56,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:56,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 207 [2023-11-17 15:31:56,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:56,765 INFO L124 PetriNetUnfolderBase]: 79/182 cut-off events. [2023-11-17 15:31:56,765 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-17 15:31:56,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 182 events. 79/182 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 705 event pairs, 37 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 484. Up to 153 conditions per place. [2023-11-17 15:31:56,767 INFO L140 encePairwiseOnDemand]: 202/207 looper letters, 27 selfloop transitions, 7 changer transitions 3/37 dead transitions. [2023-11-17 15:31:56,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 226 flow [2023-11-17 15:31:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:31:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:31:56,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-11-17 15:31:56,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.428341384863124 [2023-11-17 15:31:56,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-11-17 15:31:56,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-11-17 15:31:56,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:56,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-11-17 15:31:56,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 15:31:56,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 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 15:31:56,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 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 15:31:56,771 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 112 flow. Second operand 3 states and 266 transitions. [2023-11-17 15:31:56,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 226 flow [2023-11-17 15:31:56,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 213 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-17 15:31:56,774 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 138 flow [2023-11-17 15:31:56,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-11-17 15:31:56,775 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 10 predicate places. [2023-11-17 15:31:56,775 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 138 flow [2023-11-17 15:31:56,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 15:31:56,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:56,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:31:56,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:31:56,776 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:56,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:56,776 INFO L85 PathProgramCache]: Analyzing trace with hash 958374777, now seen corresponding path program 1 times [2023-11-17 15:31:56,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:56,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654941406] [2023-11-17 15:31:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:56,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:56,820 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 15:31:56,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:56,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654941406] [2023-11-17 15:31:56,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654941406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:56,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:56,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:31:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993339462] [2023-11-17 15:31:56,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:56,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:31:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:56,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:31:56,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:31:56,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 207 [2023-11-17 15:31:56,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 15:31:56,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:56,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 207 [2023-11-17 15:31:56,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:56,849 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2023-11-17 15:31:56,849 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:31:56,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 26 events. 0/26 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 11/37 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2023-11-17 15:31:56,850 INFO L140 encePairwiseOnDemand]: 203/207 looper letters, 15 selfloop transitions, 4 changer transitions 1/20 dead transitions. [2023-11-17 15:31:56,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 20 transitions, 121 flow [2023-11-17 15:31:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:31:56,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:31:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-11-17 15:31:56,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4363929146537842 [2023-11-17 15:31:56,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-11-17 15:31:56,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-11-17 15:31:56,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:56,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-11-17 15:31:56,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 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 15:31:56,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 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 15:31:56,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 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 15:31:56,863 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 138 flow. Second operand 3 states and 271 transitions. [2023-11-17 15:31:56,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 20 transitions, 121 flow [2023-11-17 15:31:56,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 107 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-17 15:31:56,864 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 71 flow [2023-11-17 15:31:56,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-11-17 15:31:56,867 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 6 predicate places. [2023-11-17 15:31:56,867 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 71 flow [2023-11-17 15:31:56,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 15:31:56,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:56,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:31:56,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 15:31:56,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:56,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1879272443, now seen corresponding path program 1 times [2023-11-17 15:31:56,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:56,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431503758] [2023-11-17 15:31:56,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:56,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:57,027 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 15:31:57,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431503758] [2023-11-17 15:31:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431503758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:57,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:57,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:31:57,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505298512] [2023-11-17 15:31:57,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:57,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:31:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:57,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:31:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 15:31:57,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 207 [2023-11-17 15:31:57,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 71 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 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 15:31:57,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:57,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 207 [2023-11-17 15:31:57,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:57,101 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-11-17 15:31:57,101 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:31:57,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-11-17 15:31:57,101 INFO L140 encePairwiseOnDemand]: 200/207 looper letters, 10 selfloop transitions, 2 changer transitions 9/21 dead transitions. [2023-11-17 15:31:57,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 21 transitions, 117 flow [2023-11-17 15:31:57,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:31:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:31:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 472 transitions. [2023-11-17 15:31:57,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38003220611916266 [2023-11-17 15:31:57,103 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 472 transitions. [2023-11-17 15:31:57,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 472 transitions. [2023-11-17 15:31:57,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:57,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 472 transitions. [2023-11-17 15:31:57,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 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 15:31:57,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 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 15:31:57,108 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 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 15:31:57,108 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 71 flow. Second operand 6 states and 472 transitions. [2023-11-17 15:31:57,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 21 transitions, 117 flow [2023-11-17 15:31:57,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:31:57,109 INFO L231 Difference]: Finished difference. Result has 32 places, 12 transitions, 45 flow [2023-11-17 15:31:57,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=45, PETRI_PLACES=32, PETRI_TRANSITIONS=12} [2023-11-17 15:31:57,110 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 9 predicate places. [2023-11-17 15:31:57,110 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 12 transitions, 45 flow [2023-11-17 15:31:57,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 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 15:31:57,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:31:57,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:31:57,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:31:57,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:31:57,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:31:57,111 INFO L85 PathProgramCache]: Analyzing trace with hash 430224572, now seen corresponding path program 1 times [2023-11-17 15:31:57,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:31:57,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046970432] [2023-11-17 15:31:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:31:57,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:31:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:31:57,232 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 15:31:57,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:31:57,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046970432] [2023-11-17 15:31:57,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046970432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:31:57,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:31:57,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:31:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726440496] [2023-11-17 15:31:57,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:31:57,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:31:57,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:31:57,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:31:57,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 15:31:57,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 207 [2023-11-17 15:31:57,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 12 transitions, 45 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 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 15:31:57,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:31:57,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 207 [2023-11-17 15:31:57,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:31:57,282 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-17 15:31:57,282 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:31:57,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 12 events. 0/12 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-11-17 15:31:57,282 INFO L140 encePairwiseOnDemand]: 200/207 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2023-11-17 15:31:57,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 12 transitions, 68 flow [2023-11-17 15:31:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 15:31:57,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 15:31:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 531 transitions. [2023-11-17 15:31:57,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36645962732919257 [2023-11-17 15:31:57,285 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 531 transitions. [2023-11-17 15:31:57,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 531 transitions. [2023-11-17 15:31:57,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:31:57,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 531 transitions. [2023-11-17 15:31:57,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 0 states have call successors, (0), 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 15:31:57,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 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 15:31:57,289 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 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 15:31:57,289 INFO L175 Difference]: Start difference. First operand has 32 places, 12 transitions, 45 flow. Second operand 7 states and 531 transitions. [2023-11-17 15:31:57,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 12 transitions, 68 flow [2023-11-17 15:31:57,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 12 transitions, 58 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-17 15:31:57,290 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-11-17 15:31:57,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-11-17 15:31:57,291 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2023-11-17 15:31:57,291 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-11-17 15:31:57,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 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 15:31:57,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-17 15:31:57,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-17 15:31:57,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-17 15:31:57,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-11-17 15:31:57,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-11-17 15:31:57,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-17 15:31:57,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-17 15:31:57,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:31:57,295 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:31:57,300 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:31:57,300 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:31:57,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:31:57 BasicIcfg [2023-11-17 15:31:57,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:31:57,304 INFO L158 Benchmark]: Toolchain (without parser) took 5515.17ms. Allocated memory was 189.8MB in the beginning and 240.1MB in the end (delta: 50.3MB). Free memory was 133.8MB in the beginning and 157.2MB in the end (delta: -23.4MB). Peak memory consumption was 28.4MB. Max. memory is 8.0GB. [2023-11-17 15:31:57,304 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 189.8MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:31:57,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.07ms. Allocated memory is still 189.8MB. Free memory was 133.7MB in the beginning and 114.4MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 15:31:57,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.84ms. Allocated memory is still 189.8MB. Free memory was 114.4MB in the beginning and 112.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:31:57,305 INFO L158 Benchmark]: Boogie Preprocessor took 37.77ms. Allocated memory is still 189.8MB. Free memory was 112.4MB in the beginning and 110.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 15:31:57,305 INFO L158 Benchmark]: RCFGBuilder took 391.71ms. Allocated memory is still 189.8MB. Free memory was 110.7MB in the beginning and 160.3MB in the end (delta: -49.6MB). Peak memory consumption was 20.6MB. Max. memory is 8.0GB. [2023-11-17 15:31:57,305 INFO L158 Benchmark]: TraceAbstraction took 4535.83ms. Allocated memory was 189.8MB in the beginning and 240.1MB in the end (delta: 50.3MB). Free memory was 159.3MB in the beginning and 157.2MB in the end (delta: 2.1MB). Peak memory consumption was 53.0MB. Max. memory is 8.0GB. [2023-11-17 15:31:57,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 189.8MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 479.07ms. Allocated memory is still 189.8MB. Free memory was 133.7MB in the beginning and 114.4MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.84ms. Allocated memory is still 189.8MB. Free memory was 114.4MB in the beginning and 112.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.77ms. Allocated memory is still 189.8MB. Free memory was 112.4MB in the beginning and 110.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 391.71ms. Allocated memory is still 189.8MB. Free memory was 110.7MB in the beginning and 160.3MB in the end (delta: -49.6MB). Peak memory consumption was 20.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4535.83ms. Allocated memory was 189.8MB in the beginning and 240.1MB in the end (delta: 50.3MB). Free memory was 159.3MB in the beginning and 157.2MB in the end (delta: 2.1MB). Peak memory consumption was 53.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 95 PlacesBefore, 23 PlacesAfterwards, 95 TransitionsBefore, 22 TransitionsAfterwards, 1426 CoEnabledTransitionPairs, 9 FixpointIterations, 40 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 3502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2076, independent: 1867, independent conditional: 0, independent unconditional: 1867, dependent: 209, dependent conditional: 0, dependent unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1130, independent: 1085, independent conditional: 0, independent unconditional: 1085, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1130, independent: 1035, independent conditional: 0, independent unconditional: 1035, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 95, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 162, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2076, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 1130, unknown conditional: 0, unknown unconditional: 1130] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 132 locations, 7 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: 4.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:31:57,323 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...