/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/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:48:37,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:48:37,629 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 14:48:37,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:48:37,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:48:37,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:48:37,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:48:37,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:48:37,651 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:48:37,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:48:37,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:48:37,655 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:48:37,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:48:37,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:48:37,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:48:37,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:48:37,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:48:37,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:48:37,657 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:48:37,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:48:37,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:48:37,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:48:37,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:48:37,659 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:48:37,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:48:37,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:48:37,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:48:37,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:48:37,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:48:37,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:48:37,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:48:37,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:48:37,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:48:37,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:48:37,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:48:37,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:48:37,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:48:37,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:48:37,896 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:48:37,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2023-12-09 14:48:39,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:48:39,227 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:48:39,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2023-12-09 14:48:39,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e247199a5/8b86b7d9a48b497baf1dc5cd8096a3a4/FLAG95be25203 [2023-12-09 14:48:39,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e247199a5/8b86b7d9a48b497baf1dc5cd8096a3a4 [2023-12-09 14:48:39,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:48:39,262 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:48:39,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:48:39,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:48:39,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:48:39,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7ba109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39, skipping insertion in model container [2023-12-09 14:48:39,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,328 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:48:39,668 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2023-12-09 14:48:39,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:48:39,689 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:48:39,732 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2023-12-09 14:48:39,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:48:39,800 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:48:39,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39 WrapperNode [2023-12-09 14:48:39,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:48:39,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:48:39,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:48:39,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:48:39,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,870 INFO L138 Inliner]: procedures = 269, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2023-12-09 14:48:39,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:48:39,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:48:39,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:48:39,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:48:39,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:48:39,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:48:39,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:48:39,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:48:39,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (1/1) ... [2023-12-09 14:48:39,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:48:39,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:48:39,953 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 14:48:39,964 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 14:48:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:48:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:48:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 14:48:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 14:48:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 14:48:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 14:48:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 14:48:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 14:48:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:48:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 14:48:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:48:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:48:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:48:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:48:39,984 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 14:48:40,163 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:48:40,164 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:48:40,395 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:48:40,426 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:48:40,426 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-09 14:48:40,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:48:40 BoogieIcfgContainer [2023-12-09 14:48:40,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:48:40,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:48:40,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:48:40,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:48:40,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:48:39" (1/3) ... [2023-12-09 14:48:40,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffe9e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:48:40, skipping insertion in model container [2023-12-09 14:48:40,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:48:39" (2/3) ... [2023-12-09 14:48:40,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffe9e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:48:40, skipping insertion in model container [2023-12-09 14:48:40,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:48:40" (3/3) ... [2023-12-09 14:48:40,437 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2023-12-09 14:48:40,452 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:48:40,452 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:48:40,452 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:48:40,523 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 14:48:40,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions, 228 flow [2023-12-09 14:48:40,613 INFO L124 PetriNetUnfolderBase]: 5/105 cut-off events. [2023-12-09 14:48:40,614 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:48:40,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 105 events. 5/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-12-09 14:48:40,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 107 transitions, 228 flow [2023-12-09 14:48:40,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 94 transitions, 200 flow [2023-12-09 14:48:40,638 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:48:40,650 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;@4bf1f53e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:48:40,650 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 14:48:40,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:48:40,678 INFO L124 PetriNetUnfolderBase]: 4/93 cut-off events. [2023-12-09 14:48:40,678 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:48:40,678 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:48:40,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:48:40,679 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:48:40,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:48:40,683 INFO L85 PathProgramCache]: Analyzing trace with hash 913166931, now seen corresponding path program 1 times [2023-12-09 14:48:40,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:48:40,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928647886] [2023-12-09 14:48:40,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:48:40,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:48:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:48:41,045 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 14:48:41,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:48:41,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928647886] [2023-12-09 14:48:41,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928647886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:48:41,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:48:41,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 14:48:41,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608488282] [2023-12-09 14:48:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:48:41,058 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 14:48:41,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:48:41,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 14:48:41,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 14:48:41,091 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 107 [2023-12-09 14:48:41,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 14:48:41,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:48:41,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 107 [2023-12-09 14:48:41,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:48:41,198 INFO L124 PetriNetUnfolderBase]: 33/176 cut-off events. [2023-12-09 14:48:41,198 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-12-09 14:48:41,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 176 events. 33/176 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 410 event pairs, 21 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 201. Up to 42 conditions per place. [2023-12-09 14:48:41,202 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 22 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2023-12-09 14:48:41,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 242 flow [2023-12-09 14:48:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 14:48:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 14:48:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-12-09 14:48:41,219 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8286604361370716 [2023-12-09 14:48:41,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-12-09 14:48:41,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-12-09 14:48:41,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:48:41,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-12-09 14:48:41,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:48:41,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 14:48:41,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 14:48:41,239 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, -2 predicate places. [2023-12-09 14:48:41,239 INFO L500 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 242 flow [2023-12-09 14:48:41,239 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 14:48:41,240 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:48:41,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:48:41,240 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:48:41,240 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:48:41,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:48:41,242 INFO L85 PathProgramCache]: Analyzing trace with hash -805136313, now seen corresponding path program 2 times [2023-12-09 14:48:41,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:48:41,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91983747] [2023-12-09 14:48:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:48:41,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:48:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:48:41,588 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 14:48:41,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:48:41,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91983747] [2023-12-09 14:48:41,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91983747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:48:41,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:48:41,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:48:41,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175676751] [2023-12-09 14:48:41,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:48:41,592 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:48:41,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:48:41,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:48:41,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:48:41,596 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2023-12-09 14:48:41,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 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 14:48:41,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:48:41,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2023-12-09 14:48:41,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:48:41,697 INFO L124 PetriNetUnfolderBase]: 8/119 cut-off events. [2023-12-09 14:48:41,697 INFO L125 PetriNetUnfolderBase]: For 42/54 co-relation queries the response was YES. [2023-12-09 14:48:41,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 119 events. 8/119 cut-off events. For 42/54 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 146 event pairs, 2 based on Foata normal form. 11/127 useless extension candidates. Maximal degree in co-relation 142. Up to 22 conditions per place. [2023-12-09 14:48:41,699 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 21 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-12-09 14:48:41,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 92 transitions, 313 flow [2023-12-09 14:48:41,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 14:48:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 14:48:41,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 397 transitions. [2023-12-09 14:48:41,702 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7420560747663552 [2023-12-09 14:48:41,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 397 transitions. [2023-12-09 14:48:41,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 397 transitions. [2023-12-09 14:48:41,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:48:41,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 397 transitions. [2023-12-09 14:48:41,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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 14:48:41,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 14:48:41,708 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 14:48:41,708 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2023-12-09 14:48:41,708 INFO L500 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 313 flow [2023-12-09 14:48:41,709 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 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 14:48:41,709 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:48:41,709 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:48:41,709 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:48:41,710 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:48:41,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:48:41,711 INFO L85 PathProgramCache]: Analyzing trace with hash 484601799, now seen corresponding path program 3 times [2023-12-09 14:48:41,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:48:41,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288859843] [2023-12-09 14:48:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:48:41,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:48:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:48:41,950 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 14:48:41,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:48:41,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288859843] [2023-12-09 14:48:41,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288859843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:48:41,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:48:41,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:48:41,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821201646] [2023-12-09 14:48:41,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:48:41,953 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:48:41,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:48:41,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:48:41,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:48:41,955 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2023-12-09 14:48:41,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 313 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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 14:48:41,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:48:41,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2023-12-09 14:48:41,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:48:42,053 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-12-09 14:48:42,054 INFO L125 PetriNetUnfolderBase]: For 84/108 co-relation queries the response was YES. [2023-12-09 14:48:42,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 111 events. 7/111 cut-off events. For 84/108 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 115 event pairs, 1 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 162. Up to 23 conditions per place. [2023-12-09 14:48:42,055 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2023-12-09 14:48:42,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 88 transitions, 341 flow [2023-12-09 14:48:42,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 14:48:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 14:48:42,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 641 transitions. [2023-12-09 14:48:42,057 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7488317757009346 [2023-12-09 14:48:42,057 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 641 transitions. [2023-12-09 14:48:42,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 641 transitions. [2023-12-09 14:48:42,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:48:42,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 641 transitions. [2023-12-09 14:48:42,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 80.125) internal successors, (641), 8 states have internal predecessors, (641), 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 14:48:42,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 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 14:48:42,061 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 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 14:48:42,062 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 7 predicate places. [2023-12-09 14:48:42,062 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 88 transitions, 341 flow [2023-12-09 14:48:42,063 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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 14:48:42,070 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/sync01.i_BEv2_AllErrorsAtOnce [2023-12-09 14:48:42,114 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 14:48:42,114 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 14:48:42,115 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 14:48:42,115 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:48:42,115 INFO L457 BasicCegarLoop]: Path program histogram: [3] [2023-12-09 14:48:42,119 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:48:42,119 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:48:42,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:48:42 BasicIcfg [2023-12-09 14:48:42,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:48:42,127 INFO L158 Benchmark]: Toolchain (without parser) took 2864.68ms. Allocated memory was 177.2MB in the beginning and 213.9MB in the end (delta: 36.7MB). Free memory was 132.6MB in the beginning and 184.0MB in the end (delta: -51.3MB). Peak memory consumption was 85.2MB. Max. memory is 8.0GB. [2023-12-09 14:48:42,130 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:48:42,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.84ms. Allocated memory is still 177.2MB. Free memory was 132.6MB in the beginning and 103.6MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-09 14:48:42,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.17ms. Allocated memory is still 177.2MB. Free memory was 103.6MB in the beginning and 101.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:48:42,131 INFO L158 Benchmark]: Boogie Preprocessor took 36.78ms. Allocated memory is still 177.2MB. Free memory was 101.2MB in the beginning and 99.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:48:42,132 INFO L158 Benchmark]: RCFGBuilder took 506.70ms. Allocated memory is still 177.2MB. Free memory was 99.8MB in the beginning and 141.9MB in the end (delta: -42.1MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2023-12-09 14:48:42,132 INFO L158 Benchmark]: TraceAbstraction took 1693.72ms. Allocated memory was 177.2MB in the beginning and 213.9MB in the end (delta: 36.7MB). Free memory was 141.3MB in the beginning and 184.0MB in the end (delta: -42.6MB). Peak memory consumption was 93.2MB. Max. memory is 8.0GB. [2023-12-09 14:48:42,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 539.84ms. Allocated memory is still 177.2MB. Free memory was 132.6MB in the beginning and 103.6MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.17ms. Allocated memory is still 177.2MB. Free memory was 103.6MB in the beginning and 101.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.78ms. Allocated memory is still 177.2MB. Free memory was 101.2MB in the beginning and 99.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 506.70ms. Allocated memory is still 177.2MB. Free memory was 99.8MB in the beginning and 141.9MB in the end (delta: -42.1MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1693.72ms. Allocated memory was 177.2MB in the beginning and 213.9MB in the end (delta: 36.7MB). Free memory was 141.3MB in the beginning and 184.0MB in the end (delta: -42.6MB). Peak memory consumption was 93.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 966]: 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 5 procedures, 137 locations, 3 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 25 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 415 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 14:48:42,163 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...