/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:13:49,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:13:49,583 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 [2023-12-09 15:13:49,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:13:49,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:13:49,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:13:49,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:13:49,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:13:49,612 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:13:49,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:13:49,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:13:49,613 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:13:49,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:13:49,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:13:49,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:13:49,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:13:49,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:13:49,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:13:49,615 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:13:49,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:13:49,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:13:49,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:13:49,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:13:49,616 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:13:49,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:13:49,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:13:49,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:13:49,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:13:49,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:13:49,617 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:13:49,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:13:49,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:13:49,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:13:49,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:13:49,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:13:49,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:13:49,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:13:49,830 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:13:49,831 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:13:49,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2023-12-09 15:13:50,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:13:51,046 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:13:51,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2023-12-09 15:13:51,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf4cfd735/7cfae8a1fc60417eb9d13fcc6c27453e/FLAG733c74649 [2023-12-09 15:13:51,062 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf4cfd735/7cfae8a1fc60417eb9d13fcc6c27453e [2023-12-09 15:13:51,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:13:51,064 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:13:51,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:13:51,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:13:51,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:13:51,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777f3697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51, skipping insertion in model container [2023-12-09 15:13:51,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:13:51,268 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/chl-sre-trans.wvr.c[2311,2324] [2023-12-09 15:13:51,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:13:51,287 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:13:51,308 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/chl-sre-trans.wvr.c[2311,2324] [2023-12-09 15:13:51,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:13:51,325 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:13:51,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51 WrapperNode [2023-12-09 15:13:51,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:13:51,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:13:51,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:13:51,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:13:51,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,358 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-12-09 15:13:51,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:13:51,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:13:51,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:13:51,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:13:51,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:13:51,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:13:51,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:13:51,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:13:51,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (1/1) ... [2023-12-09 15:13:51,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:13:51,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:51,425 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) [2023-12-09 15:13:51,456 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 [2023-12-09 15:13:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:13:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:13:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:13:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:13:51,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:13:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:13:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:13:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:13:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:13:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:13:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:13:51,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:13:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:13:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:13:51,469 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:13:51,572 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:13:51,574 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:13:51,698 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:13:51,705 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:13:51,706 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:13:51,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:13:51 BoogieIcfgContainer [2023-12-09 15:13:51,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:13:51,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:13:51,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:13:51,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:13:51,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:13:51" (1/3) ... [2023-12-09 15:13:51,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100ed0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:13:51, skipping insertion in model container [2023-12-09 15:13:51,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:51" (2/3) ... [2023-12-09 15:13:51,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100ed0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:13:51, skipping insertion in model container [2023-12-09 15:13:51,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:13:51" (3/3) ... [2023-12-09 15:13:51,713 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2023-12-09 15:13:51,726 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:13:51,726 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:13:51,726 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:13:51,768 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:13:51,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 88 transitions, 197 flow [2023-12-09 15:13:51,830 INFO L124 PetriNetUnfolderBase]: 1/85 cut-off events. [2023-12-09 15:13:51,830 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:13:51,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 1/85 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 26 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-12-09 15:13:51,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 88 transitions, 197 flow [2023-12-09 15:13:51,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 74 transitions, 166 flow [2023-12-09 15:13:51,843 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:13:51,850 INFO L362 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=true, 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;@b9a60a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:13:51,850 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:13:51,867 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:13:51,868 INFO L124 PetriNetUnfolderBase]: 1/73 cut-off events. [2023-12-09 15:13:51,868 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:13:51,868 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:51,868 INFO L233 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] [2023-12-09 15:13:51,869 INFO L425 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)] === [2023-12-09 15:13:51,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1960336968, now seen corresponding path program 1 times [2023-12-09 15:13:51,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:51,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060237686] [2023-12-09 15:13:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:52,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060237686] [2023-12-09 15:13:52,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060237686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:52,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:52,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:13:52,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919304576] [2023-12-09 15:13:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:52,944 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:13:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:52,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:13:52,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:13:52,977 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2023-12-09 15:13:52,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 166 flow. Second operand has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 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) [2023-12-09 15:13:52,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:52,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2023-12-09 15:13:52,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:53,368 INFO L124 PetriNetUnfolderBase]: 13/159 cut-off events. [2023-12-09 15:13:53,368 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-12-09 15:13:53,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 159 events. 13/159 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 429 event pairs, 7 based on Foata normal form. 3/156 useless extension candidates. Maximal degree in co-relation 125. Up to 28 conditions per place. [2023-12-09 15:13:53,372 INFO L140 encePairwiseOnDemand]: 76/88 looper letters, 31 selfloop transitions, 6 changer transitions 10/95 dead transitions. [2023-12-09 15:13:53,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 95 transitions, 326 flow [2023-12-09 15:13:53,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:13:53,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:13:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 661 transitions. [2023-12-09 15:13:53,390 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7511363636363636 [2023-12-09 15:13:53,390 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 661 transitions. [2023-12-09 15:13:53,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 661 transitions. [2023-12-09 15:13:53,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:53,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 661 transitions. [2023-12-09 15:13:53,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 66.1) internal successors, (661), 10 states have internal predecessors, (661), 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) [2023-12-09 15:13:53,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 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) [2023-12-09 15:13:53,406 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 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) [2023-12-09 15:13:53,410 INFO L308 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2023-12-09 15:13:53,411 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 95 transitions, 326 flow [2023-12-09 15:13:53,412 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 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) [2023-12-09 15:13:53,412 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:53,412 INFO L233 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] [2023-12-09 15:13:53,412 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:13:53,412 INFO L425 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)] === [2023-12-09 15:13:53,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:53,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330270, now seen corresponding path program 2 times [2023-12-09 15:13:53,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:53,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935276920] [2023-12-09 15:13:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:53,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:53,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:53,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935276920] [2023-12-09 15:13:53,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935276920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:53,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:53,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:13:53,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774708436] [2023-12-09 15:13:53,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:53,898 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:13:53,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:53,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:13:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:13:53,900 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 88 [2023-12-09 15:13:53,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 66.14285714285714) internal successors, (463), 7 states have internal predecessors, (463), 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) [2023-12-09 15:13:53,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:53,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 88 [2023-12-09 15:13:53,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:54,109 INFO L124 PetriNetUnfolderBase]: 14/183 cut-off events. [2023-12-09 15:13:54,109 INFO L125 PetriNetUnfolderBase]: For 124/148 co-relation queries the response was YES. [2023-12-09 15:13:54,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 183 events. 14/183 cut-off events. For 124/148 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 602 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 185. Up to 35 conditions per place. [2023-12-09 15:13:54,110 INFO L140 encePairwiseOnDemand]: 81/88 looper letters, 24 selfloop transitions, 4 changer transitions 34/112 dead transitions. [2023-12-09 15:13:54,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 545 flow [2023-12-09 15:13:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:13:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:13:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 544 transitions. [2023-12-09 15:13:54,112 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2023-12-09 15:13:54,112 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 544 transitions. [2023-12-09 15:13:54,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 544 transitions. [2023-12-09 15:13:54,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:54,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 544 transitions. [2023-12-09 15:13:54,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 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) [2023-12-09 15:13:54,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 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) [2023-12-09 15:13:54,115 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 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) [2023-12-09 15:13:54,115 INFO L308 CegarLoopForPetriNet]: 83 programPoint places, 16 predicate places. [2023-12-09 15:13:54,115 INFO L500 AbstractCegarLoop]: Abstraction has has 99 places, 112 transitions, 545 flow [2023-12-09 15:13:54,116 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.14285714285714) internal successors, (463), 7 states have internal predecessors, (463), 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) [2023-12-09 15:13:54,116 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:54,116 INFO L233 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] [2023-12-09 15:13:54,116 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:13:54,116 INFO L425 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)] === [2023-12-09 15:13:54,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1931270862, now seen corresponding path program 3 times [2023-12-09 15:13:54,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:54,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682271943] [2023-12-09 15:13:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:54,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:13:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682271943] [2023-12-09 15:13:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682271943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:54,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:54,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:13:54,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123223185] [2023-12-09 15:13:54,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:54,518 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:13:54,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:54,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:13:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:13:54,521 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2023-12-09 15:13:54,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 112 transitions, 545 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2023-12-09 15:13:54,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:54,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2023-12-09 15:13:54,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:54,715 INFO L124 PetriNetUnfolderBase]: 14/191 cut-off events. [2023-12-09 15:13:54,715 INFO L125 PetriNetUnfolderBase]: For 275/325 co-relation queries the response was YES. [2023-12-09 15:13:54,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 191 events. 14/191 cut-off events. For 275/325 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 646 event pairs, 0 based on Foata normal form. 10/201 useless extension candidates. Maximal degree in co-relation 180. Up to 32 conditions per place. [2023-12-09 15:13:54,717 INFO L140 encePairwiseOnDemand]: 81/88 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2023-12-09 15:13:54,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 112 transitions, 682 flow [2023-12-09 15:13:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:13:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:13:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 549 transitions. [2023-12-09 15:13:54,719 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7798295454545454 [2023-12-09 15:13:54,719 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 549 transitions. [2023-12-09 15:13:54,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 549 transitions. [2023-12-09 15:13:54,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:54,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 549 transitions. [2023-12-09 15:13:54,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.625) internal successors, (549), 8 states have internal predecessors, (549), 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) [2023-12-09 15:13:54,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 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) [2023-12-09 15:13:54,722 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 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) [2023-12-09 15:13:54,723 INFO L308 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2023-12-09 15:13:54,724 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 112 transitions, 682 flow [2023-12-09 15:13:54,724 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2023-12-09 15:13:54,730 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-sre-trans.wvr.c_BEv2_AllErrorsAtOnce [2023-12-09 15:13:54,758 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:13:54,759 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:13:54,759 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:13:54,762 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:13:54,762 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:13:54,763 INFO L457 BasicCegarLoop]: Path program histogram: [3] [2023-12-09 15:13:54,767 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:13:54,767 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:13:54,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:13:54 BasicIcfg [2023-12-09 15:13:54,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:13:54,773 INFO L158 Benchmark]: Toolchain (without parser) took 3708.72ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 228.6MB in the beginning and 202.9MB in the end (delta: 25.7MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,775 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:13:54,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.08ms. Allocated memory is still 275.8MB. Free memory was 228.1MB in the beginning and 217.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.18ms. Allocated memory is still 275.8MB. Free memory was 217.0MB in the beginning and 215.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,777 INFO L158 Benchmark]: Boogie Preprocessor took 25.85ms. Allocated memory is still 275.8MB. Free memory was 215.1MB in the beginning and 214.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,777 INFO L158 Benchmark]: RCFGBuilder took 320.93ms. Allocated memory is still 275.8MB. Free memory was 214.1MB in the beginning and 200.9MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,778 INFO L158 Benchmark]: TraceAbstraction took 3064.23ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 199.8MB in the beginning and 202.9MB in the end (delta: -3.1MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. [2023-12-09 15:13:54,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 261.08ms. Allocated memory is still 275.8MB. Free memory was 228.1MB in the beginning and 217.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.18ms. Allocated memory is still 275.8MB. Free memory was 217.0MB in the beginning and 215.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.85ms. Allocated memory is still 275.8MB. Free memory was 215.1MB in the beginning and 214.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 320.93ms. Allocated memory is still 275.8MB. Free memory was 214.1MB in the beginning and 200.9MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3064.23ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 199.8MB in the beginning and 202.9MB in the end (delta: -3.1MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 76]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 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: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 278 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 52 mSDtfsCounter, 278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=682occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 1590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:13:54,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...