/usr/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 12:33:58,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 12:33:58,601 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-NoLbe.epf [2023-11-10 12:33:58,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 12:33:58,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 12:33:58,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 12:33:58,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 12:33:58,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 12:33:58,623 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 12:33:58,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 12:33:58,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 12:33:58,624 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 12:33:58,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 12:33:58,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 12:33:58,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 12:33:58,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 12:33:58,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 12:33:58,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 12:33:58,626 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 12:33:58,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 12:33:58,627 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 12:33:58,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 12:33:58,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 12:33:58,628 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 12:33:58,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 12:33:58,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:33:58,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 12:33:58,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 12:33:58,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 12:33:58,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 12:33:58,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 12:33:58,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 12:33:58,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 12:33:58,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 12:33:58,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 12:33:58,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 12:33:58,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 12:33:58,899 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 12:33:58,899 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 12:33:58,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2023-11-10 12:33:59,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 12:34:00,045 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 12:34:00,046 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2023-11-10 12:34:00,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d690fe0/19bb2c57a6ce454fae7fa213af73777a/FLAGd9890f92c [2023-11-10 12:34:00,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d690fe0/19bb2c57a6ce454fae7fa213af73777a [2023-11-10 12:34:00,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 12:34:00,072 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 12:34:00,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 12:34:00,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 12:34:00,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 12:34:00,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368232f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00, skipping insertion in model container [2023-11-10 12:34:00,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,118 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 12:34:00,240 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2023-11-10 12:34:00,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:34:00,251 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 12:34:00,266 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c[2586,2599] [2023-11-10 12:34:00,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:34:00,273 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 12:34:00,273 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 12:34:00,282 INFO L206 MainTranslator]: Completed translation [2023-11-10 12:34:00,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00 WrapperNode [2023-11-10 12:34:00,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 12:34:00,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 12:34:00,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 12:34:00,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 12:34:00,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,306 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 105 [2023-11-10 12:34:00,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 12:34:00,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 12:34:00,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 12:34:00,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 12:34:00,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 12:34:00,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 12:34:00,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 12:34:00,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 12:34:00,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (1/1) ... [2023-11-10 12:34:00,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:34:00,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:34:00,352 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) [2023-11-10 12:34:00,363 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 [2023-11-10 12:34:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 12:34:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-10 12:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-10 12:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-10 12:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 12:34:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 12:34:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 12:34:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 12:34:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 12:34:00,395 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 12:34:00,460 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 12:34:00,461 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 12:34:00,680 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 12:34:00,734 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 12:34:00,735 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-10 12:34:00,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:34:00 BoogieIcfgContainer [2023-11-10 12:34:00,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 12:34:00,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 12:34:00,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 12:34:00,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 12:34:00,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:34:00" (1/3) ... [2023-11-10 12:34:00,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaf888c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:34:00, skipping insertion in model container [2023-11-10 12:34:00,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:34:00" (2/3) ... [2023-11-10 12:34:00,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaf888c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:34:00, skipping insertion in model container [2023-11-10 12:34:00,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:34:00" (3/3) ... [2023-11-10 12:34:00,747 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2023-11-10 12:34:00,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 12:34:00,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 12:34:00,759 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 12:34:00,875 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-10 12:34:00,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 157 transitions, 335 flow [2023-11-10 12:34:00,993 INFO L124 PetriNetUnfolderBase]: 12/154 cut-off events. [2023-11-10 12:34:00,993 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-10 12:34:00,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 12/154 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 97 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2023-11-10 12:34:00,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 157 transitions, 335 flow [2023-11-10 12:34:01,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 143 transitions, 304 flow [2023-11-10 12:34:01,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:34:01,021 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;@37e68b7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:34:01,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-10 12:34:01,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:34:01,067 INFO L124 PetriNetUnfolderBase]: 12/142 cut-off events. [2023-11-10 12:34:01,067 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-10 12:34:01,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:34:01,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:34:01,068 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 1 more)] === [2023-11-10 12:34:01,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:34:01,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1172115032, now seen corresponding path program 1 times [2023-11-10 12:34:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:34:01,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414658683] [2023-11-10 12:34:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:01,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:34:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:01,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:34:01,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414658683] [2023-11-10 12:34:01,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414658683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:34:01,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:34:01,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 12:34:01,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474060238] [2023-11-10 12:34:01,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:34:01,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 12:34:01,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:34:01,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 12:34:01,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-10 12:34:01,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 157 [2023-11-10 12:34:01,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 143 transitions, 304 flow. Second operand has 8 states, 8 states have (on average 92.875) internal successors, (743), 8 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:01,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:34:01,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 157 [2023-11-10 12:34:01,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:34:02,238 INFO L124 PetriNetUnfolderBase]: 295/718 cut-off events. [2023-11-10 12:34:02,238 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-11-10 12:34:02,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 718 events. 295/718 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3279 event pairs, 167 based on Foata normal form. 5/544 useless extension candidates. Maximal degree in co-relation 1011. Up to 416 conditions per place. [2023-11-10 12:34:02,253 INFO L140 encePairwiseOnDemand]: 137/157 looper letters, 53 selfloop transitions, 8 changer transitions 12/147 dead transitions. [2023-11-10 12:34:02,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 147 transitions, 458 flow [2023-11-10 12:34:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-10 12:34:02,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-10 12:34:02,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 780 transitions. [2023-11-10 12:34:02,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6210191082802548 [2023-11-10 12:34:02,271 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 780 transitions. [2023-11-10 12:34:02,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 780 transitions. [2023-11-10 12:34:02,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:34:02,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 780 transitions. [2023-11-10 12:34:02,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 97.5) internal successors, (780), 8 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 157.0) internal successors, (1413), 9 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,288 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 157.0) internal successors, (1413), 9 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,289 INFO L175 Difference]: Start difference. First operand has 141 places, 143 transitions, 304 flow. Second operand 8 states and 780 transitions. [2023-11-10 12:34:02,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 147 transitions, 458 flow [2023-11-10 12:34:02,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 147 transitions, 446 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-10 12:34:02,298 INFO L231 Difference]: Finished difference. Result has 146 places, 132 transitions, 300 flow [2023-11-10 12:34:02,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=300, PETRI_PLACES=146, PETRI_TRANSITIONS=132} [2023-11-10 12:34:02,302 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2023-11-10 12:34:02,302 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 132 transitions, 300 flow [2023-11-10 12:34:02,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 92.875) internal successors, (743), 8 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:34:02,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:34:02,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 12:34:02,304 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 1 more)] === [2023-11-10 12:34:02,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:34:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash 863178508, now seen corresponding path program 1 times [2023-11-10 12:34:02,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:34:02,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237342103] [2023-11-10 12:34:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:02,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:34:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:02,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:02,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:34:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237342103] [2023-11-10 12:34:02,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237342103] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852738129] [2023-11-10 12:34:02,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:02,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:02,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:34:02,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 12:34:02,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-10 12:34:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:02,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-10 12:34:02,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:34:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:02,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 12:34:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:02,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852738129] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:02,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-10 12:34:02,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-11-10 12:34:02,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220304915] [2023-11-10 12:34:02,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:34:02,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 12:34:02,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:34:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 12:34:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-10 12:34:02,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 157 [2023-11-10 12:34:02,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 132 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:34:02,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 157 [2023-11-10 12:34:02,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:34:02,957 INFO L124 PetriNetUnfolderBase]: 197/589 cut-off events. [2023-11-10 12:34:02,958 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-10 12:34:02,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 589 events. 197/589 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2637 event pairs, 59 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 857. Up to 173 conditions per place. [2023-11-10 12:34:02,961 INFO L140 encePairwiseOnDemand]: 149/157 looper letters, 37 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2023-11-10 12:34:02,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 140 transitions, 406 flow [2023-11-10 12:34:02,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-10 12:34:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-10 12:34:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 835 transitions. [2023-11-10 12:34:02,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7597816196542311 [2023-11-10 12:34:02,963 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 835 transitions. [2023-11-10 12:34:02,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 835 transitions. [2023-11-10 12:34:02,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:34:02,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 835 transitions. [2023-11-10 12:34:02,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,968 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,968 INFO L175 Difference]: Start difference. First operand has 146 places, 132 transitions, 300 flow. Second operand 7 states and 835 transitions. [2023-11-10 12:34:02,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 140 transitions, 406 flow [2023-11-10 12:34:02,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 140 transitions, 384 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-10 12:34:02,971 INFO L231 Difference]: Finished difference. Result has 142 places, 134 transitions, 311 flow [2023-11-10 12:34:02,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=311, PETRI_PLACES=142, PETRI_TRANSITIONS=134} [2023-11-10 12:34:02,971 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 1 predicate places. [2023-11-10 12:34:02,972 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 134 transitions, 311 flow [2023-11-10 12:34:02,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:02,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:34:02,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:34:02,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-10 12:34:03,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:03,183 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 1 more)] === [2023-11-10 12:34:03,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:34:03,183 INFO L85 PathProgramCache]: Analyzing trace with hash -887815300, now seen corresponding path program 1 times [2023-11-10 12:34:03,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:34:03,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520583128] [2023-11-10 12:34:03,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:03,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:34:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 12:34:03,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:34:03,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520583128] [2023-11-10 12:34:03,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520583128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321995529] [2023-11-10 12:34:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:03,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:03,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:34:03,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 12:34:03,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-10 12:34:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:03,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-10 12:34:03,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:34:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 12:34:03,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 12:34:03,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 12:34:03,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321995529] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:03,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-10 12:34:03,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2023-11-10 12:34:03,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575671033] [2023-11-10 12:34:03,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:34:03,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 12:34:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:34:03,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 12:34:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-10 12:34:03,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 157 [2023-11-10 12:34:03,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 311 flow. Second operand has 9 states, 9 states have (on average 108.88888888888889) internal successors, (980), 9 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:03,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:34:03,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 157 [2023-11-10 12:34:03,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:34:03,918 INFO L124 PetriNetUnfolderBase]: 849/1725 cut-off events. [2023-11-10 12:34:03,919 INFO L125 PetriNetUnfolderBase]: For 561/820 co-relation queries the response was YES. [2023-11-10 12:34:03,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1725 events. 849/1725 cut-off events. For 561/820 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9914 event pairs, 208 based on Foata normal form. 259/1805 useless extension candidates. Maximal degree in co-relation 3389. Up to 341 conditions per place. [2023-11-10 12:34:03,927 INFO L140 encePairwiseOnDemand]: 145/157 looper letters, 84 selfloop transitions, 19 changer transitions 0/191 dead transitions. [2023-11-10 12:34:03,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 191 transitions, 680 flow [2023-11-10 12:34:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 12:34:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 12:34:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1252 transitions. [2023-11-10 12:34:03,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.72495657209033 [2023-11-10 12:34:03,930 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1252 transitions. [2023-11-10 12:34:03,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1252 transitions. [2023-11-10 12:34:03,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:34:03,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1252 transitions. [2023-11-10 12:34:03,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.81818181818181) internal successors, (1252), 11 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:03,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 157.0) internal successors, (1884), 12 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:03,935 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 157.0) internal successors, (1884), 12 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:03,936 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 311 flow. Second operand 11 states and 1252 transitions. [2023-11-10 12:34:03,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 191 transitions, 680 flow [2023-11-10 12:34:03,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 191 transitions, 667 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 12:34:03,974 INFO L231 Difference]: Finished difference. Result has 154 places, 146 transitions, 410 flow [2023-11-10 12:34:03,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=410, PETRI_PLACES=154, PETRI_TRANSITIONS=146} [2023-11-10 12:34:03,975 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 13 predicate places. [2023-11-10 12:34:03,975 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 146 transitions, 410 flow [2023-11-10 12:34:03,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 108.88888888888889) internal successors, (980), 9 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:03,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:34:03,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:34:03,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-10 12:34:04,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-10 12:34:04,181 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 1 more)] === [2023-11-10 12:34:04,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:34:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1907985024, now seen corresponding path program 2 times [2023-11-10 12:34:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:34:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104734193] [2023-11-10 12:34:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:34:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 12:34:04,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:34:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104734193] [2023-11-10 12:34:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104734193] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114238314] [2023-11-10 12:34:04,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 12:34:04,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:04,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:34:04,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 12:34:04,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-10 12:34:04,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 12:34:04,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 12:34:04,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-10 12:34:04,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:34:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-10 12:34:04,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 12:34:04,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114238314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:34:04,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 12:34:04,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-10 12:34:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427686025] [2023-11-10 12:34:04,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:34:04,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 12:34:04,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:34:04,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 12:34:04,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-10 12:34:04,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 157 [2023-11-10 12:34:04,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 146 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:04,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:34:04,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 157 [2023-11-10 12:34:04,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:34:04,767 INFO L124 PetriNetUnfolderBase]: 464/943 cut-off events. [2023-11-10 12:34:04,768 INFO L125 PetriNetUnfolderBase]: For 843/963 co-relation queries the response was YES. [2023-11-10 12:34:04,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 943 events. 464/943 cut-off events. For 843/963 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4383 event pairs, 147 based on Foata normal form. 146/1062 useless extension candidates. Maximal degree in co-relation 2309. Up to 344 conditions per place. [2023-11-10 12:34:04,773 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 51 selfloop transitions, 11 changer transitions 0/148 dead transitions. [2023-11-10 12:34:04,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 148 transitions, 527 flow [2023-11-10 12:34:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-10 12:34:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-10 12:34:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 826 transitions. [2023-11-10 12:34:04,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6576433121019108 [2023-11-10 12:34:04,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 826 transitions. [2023-11-10 12:34:04,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 826 transitions. [2023-11-10 12:34:04,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:34:04,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 826 transitions. [2023-11-10 12:34:04,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 103.25) internal successors, (826), 8 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:04,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 157.0) internal successors, (1413), 9 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:04,779 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 157.0) internal successors, (1413), 9 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:04,779 INFO L175 Difference]: Start difference. First operand has 154 places, 146 transitions, 410 flow. Second operand 8 states and 826 transitions. [2023-11-10 12:34:04,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 148 transitions, 527 flow [2023-11-10 12:34:04,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 148 transitions, 514 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-10 12:34:04,784 INFO L231 Difference]: Finished difference. Result has 153 places, 140 transitions, 387 flow [2023-11-10 12:34:04,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=387, PETRI_PLACES=153, PETRI_TRANSITIONS=140} [2023-11-10 12:34:04,785 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 12 predicate places. [2023-11-10 12:34:04,785 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 387 flow [2023-11-10 12:34:04,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:04,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:34:04,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:34:04,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-10 12:34:04,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:04,990 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 1 more)] === [2023-11-10 12:34:04,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:34:04,991 INFO L85 PathProgramCache]: Analyzing trace with hash -459806740, now seen corresponding path program 1 times [2023-11-10 12:34:04,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:34:04,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786150735] [2023-11-10 12:34:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:04,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:34:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:06,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:06,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:34:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786150735] [2023-11-10 12:34:06,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786150735] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:06,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368517614] [2023-11-10 12:34:06,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:06,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:34:06,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 12:34:06,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-10 12:34:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:06,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-10 12:34:06,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:34:07,428 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:07,429 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 43 [2023-11-10 12:34:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:07,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 12:34:08,693 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:08,693 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 79 [2023-11-10 12:34:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:09,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368517614] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 12:34:09,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 12:34:09,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 21, 21] total 55 [2023-11-10 12:34:09,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38282161] [2023-11-10 12:34:09,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 12:34:09,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-11-10 12:34:09,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:34:09,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-11-10 12:34:09,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=2463, Unknown=0, NotChecked=0, Total=2970 [2023-11-10 12:34:09,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 157 [2023-11-10 12:34:09,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 140 transitions, 387 flow. Second operand has 55 states, 55 states have (on average 64.63636363636364) internal successors, (3555), 55 states have internal predecessors, (3555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:09,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:34:09,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 157 [2023-11-10 12:34:09,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:34:12,094 INFO L124 PetriNetUnfolderBase]: 2641/5324 cut-off events. [2023-11-10 12:34:12,094 INFO L125 PetriNetUnfolderBase]: For 3820/3875 co-relation queries the response was YES. [2023-11-10 12:34:12,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12508 conditions, 5324 events. 2641/5324 cut-off events. For 3820/3875 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 39461 event pairs, 231 based on Foata normal form. 8/5285 useless extension candidates. Maximal degree in co-relation 11931. Up to 1730 conditions per place. [2023-11-10 12:34:12,173 INFO L140 encePairwiseOnDemand]: 120/157 looper letters, 251 selfloop transitions, 118 changer transitions 8/428 dead transitions. [2023-11-10 12:34:12,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 428 transitions, 2107 flow [2023-11-10 12:34:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-10 12:34:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2023-11-10 12:34:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 3225 transitions. [2023-11-10 12:34:12,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43705109093373085 [2023-11-10 12:34:12,181 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 3225 transitions. [2023-11-10 12:34:12,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 3225 transitions. [2023-11-10 12:34:12,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:34:12,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 3225 transitions. [2023-11-10 12:34:12,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 68.61702127659575) internal successors, (3225), 47 states have internal predecessors, (3225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:12,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 157.0) internal successors, (7536), 48 states have internal predecessors, (7536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:12,200 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 157.0) internal successors, (7536), 48 states have internal predecessors, (7536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:12,200 INFO L175 Difference]: Start difference. First operand has 153 places, 140 transitions, 387 flow. Second operand 47 states and 3225 transitions. [2023-11-10 12:34:12,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 428 transitions, 2107 flow [2023-11-10 12:34:12,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 428 transitions, 2053 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-10 12:34:12,218 INFO L231 Difference]: Finished difference. Result has 210 places, 248 transitions, 1098 flow [2023-11-10 12:34:12,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1098, PETRI_PLACES=210, PETRI_TRANSITIONS=248} [2023-11-10 12:34:12,221 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 69 predicate places. [2023-11-10 12:34:12,221 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 248 transitions, 1098 flow [2023-11-10 12:34:12,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 64.63636363636364) internal successors, (3555), 55 states have internal predecessors, (3555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:12,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:34:12,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:34:12,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-10 12:34:12,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:12,428 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 1 more)] === [2023-11-10 12:34:12,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:34:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash 3235278, now seen corresponding path program 2 times [2023-11-10 12:34:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:34:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59787796] [2023-11-10 12:34:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:34:12,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:34:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:34:13,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:13,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:34:13,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59787796] [2023-11-10 12:34:13,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59787796] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:34:13,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375435960] [2023-11-10 12:34:13,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 12:34:13,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:34:13,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:34:13,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 12:34:13,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-10 12:34:13,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 12:34:13,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 12:34:13,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-10 12:34:13,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:34:14,711 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-10 12:34:15,087 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-10 12:34:15,257 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-10 12:34:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 12:34:15,530 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2023-11-10 12:34:15,743 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:15,743 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 43 [2023-11-10 12:34:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:16,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 12:34:42,979 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:42,980 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 90 [2023-11-10 12:34:42,999 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:42,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7985 treesize of output 7601 [2023-11-10 12:34:43,033 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:43,033 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 223 treesize of output 211 [2023-11-10 12:34:43,052 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:43,052 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 206 treesize of output 174 [2023-11-10 12:34:43,066 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 139 [2023-11-10 12:34:43,428 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:43,428 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 74 [2023-11-10 12:34:43,432 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-10 12:34:43,439 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 12:34:43,439 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 213 [2023-11-10 12:34:43,455 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 12:34:43,455 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 189 [2023-11-10 12:34:43,469 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 12:34:43,469 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 89 [2023-11-10 12:34:43,592 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-10 12:34:43,592 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 46 [2023-11-10 12:34:43,597 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-10 12:34:43,603 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 12:34:43,604 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 111 [2023-11-10 12:34:43,616 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 12:34:43,616 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 111 [2023-11-10 12:34:43,627 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 12:34:43,627 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 53 [2023-11-10 12:34:43,673 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,673 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 1 [2023-11-10 12:34:43,682 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,682 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 1 [2023-11-10 12:34:43,702 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,703 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 1 [2023-11-10 12:34:43,713 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,713 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 1 [2023-11-10 12:34:43,722 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,722 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 1 [2023-11-10 12:34:43,730 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,731 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 1 [2023-11-10 12:34:43,740 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-10 12:34:43,741 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 1 [2023-11-10 12:34:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:34:45,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375435960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 12:34:45,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 12:34:45,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 32, 29] total 78 [2023-11-10 12:34:45,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037505529] [2023-11-10 12:34:45,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 12:34:45,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-11-10 12:34:45,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:34:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-11-10 12:34:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=744, Invalid=5144, Unknown=118, NotChecked=0, Total=6006 [2023-11-10 12:34:45,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 157 [2023-11-10 12:34:45,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 248 transitions, 1098 flow. Second operand has 78 states, 78 states have (on average 43.08974358974359) internal successors, (3361), 78 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:34:45,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:34:45,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 157 [2023-11-10 12:34:45,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:35:49,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:03,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:18,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:20,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:22,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:25,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:27,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:29,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:31,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:37,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:39,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:41,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:43,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:45,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:48,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:50,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:52,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:36:54,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:12,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:15,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:17,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:19,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:21,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:23,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:24,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:27,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:47,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:49,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:51,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:53,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:55,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:37:57,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:14,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:19,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:21,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:23,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:25,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:27,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:29,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:31,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:33,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:35,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:37,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:39,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:41,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:45,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:47,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:49,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:56,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:38:58,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:01,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:02,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:04,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:06,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:08,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:11,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:31,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:39:57,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:40:29,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:40:56,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:41:24,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:42:11,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:42:43,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:43:05,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:43:21,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-10 12:43:26,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] Received shutdown request... [2023-11-10 12:43:32,846 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-10 12:43:32,846 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-10 12:43:33,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-10 12:43:33,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2023-11-10 12:43:33,907 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-10 12:43:33,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 12:43:33,908 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-10 12:43:33,909 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-10 12:43:33,909 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-10 12:43:33,909 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-10 12:43:33,909 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2023-11-10 12:43:33,926 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 12:43:33,927 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 12:43:33,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:43:33 BasicIcfg [2023-11-10 12:43:33,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 12:43:33,936 INFO L158 Benchmark]: Toolchain (without parser) took 573863.25ms. Allocated memory was 187.7MB in the beginning and 610.3MB in the end (delta: 422.6MB). Free memory was 140.2MB in the beginning and 263.0MB in the end (delta: -122.7MB). Peak memory consumption was 300.2MB. Max. memory is 8.0GB. [2023-11-10 12:43:33,936 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 12:43:33,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.84ms. Allocated memory is still 187.7MB. Free memory was 140.2MB in the beginning and 128.3MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-10 12:43:33,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.51ms. Allocated memory is still 187.7MB. Free memory was 128.3MB in the beginning and 126.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 12:43:33,936 INFO L158 Benchmark]: Boogie Preprocessor took 18.56ms. Allocated memory is still 187.7MB. Free memory was 126.6MB in the beginning and 124.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 12:43:33,936 INFO L158 Benchmark]: RCFGBuilder took 415.34ms. Allocated memory is still 187.7MB. Free memory was 124.9MB in the beginning and 102.5MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-11-10 12:43:33,937 INFO L158 Benchmark]: TraceAbstraction took 573192.44ms. Allocated memory was 187.7MB in the beginning and 610.3MB in the end (delta: 422.6MB). Free memory was 102.1MB in the beginning and 263.0MB in the end (delta: -160.9MB). Peak memory consumption was 262.5MB. Max. memory is 8.0GB. [2023-11-10 12:43:33,937 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 207.84ms. Allocated memory is still 187.7MB. Free memory was 140.2MB in the beginning and 128.3MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.51ms. Allocated memory is still 187.7MB. Free memory was 128.3MB in the beginning and 126.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.56ms. Allocated memory is still 187.7MB. Free memory was 126.6MB in the beginning and 124.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 415.34ms. Allocated memory is still 187.7MB. Free memory was 124.9MB in the beginning and 102.5MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 573192.44ms. Allocated memory was 187.7MB in the beginning and 610.3MB in the end (delta: 422.6MB). Free memory was 102.1MB in the beginning and 263.0MB in the end (delta: -160.9MB). Peak memory consumption was 262.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 179 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 573.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 532.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 552 mSolverCounterUnknown, 3330 SdHoareTripleChecker+Valid, 225.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3330 mSDsluCounter, 5684 SdHoareTripleChecker+Invalid, 222.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5355 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10275 IncrementalHoareTripleChecker+Invalid, 10981 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 329 mSDtfsCounter, 10275 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1357 GetRequests, 1005 SyntacticMatches, 5 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16473 ImplicationChecksByTransitivity, 320.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1098occurred in iteration=5, InterpolantAutomatonStates: 81, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 38.8s InterpolantComputationTime, 1328 NumberOfCodeBlocks, 1315 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1802 ConstructedInterpolants, 46 QuantifiedInterpolants, 44598 SizeOfPredicates, 79 NumberOfNonLiveVariables, 1381 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 8/31 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown