/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:54:56,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:54:56,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:54:56,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:54:56,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:54:56,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:54:56,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:54:56,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:54:56,443 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:54:56,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:54:56,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:54:56,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:54:56,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:54:56,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:54:56,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:54:56,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:54:56,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:54:56,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:54:56,450 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:54:56,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:54:56,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:54:56,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:54:56,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:54:56,451 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:54:56,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:54:56,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:56,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:54:56,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:54:56,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:54:56,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:54:56,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:54:56,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:54:56,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:54:56,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:54:56,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:54:56,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:54:56,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:54:56,712 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:54:56,713 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:54:56,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i [2023-11-10 11:54:57,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:54:58,100 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:54:58,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i [2023-11-10 11:54:58,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f42c4eb/c69cf68a2f054283bb3c50120b827943/FLAGe8420425c [2023-11-10 11:54:58,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f42c4eb/c69cf68a2f054283bb3c50120b827943 [2023-11-10 11:54:58,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:54:58,144 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:54:58,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:58,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:54:58,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:54:58,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326f77d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58, skipping insertion in model container [2023-11-10 11:54:58,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:54:58,351 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i[1094,1107] [2023-11-10 11:54:58,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:58,492 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:54:58,504 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_47-refine-protected2_true.i[1094,1107] [2023-11-10 11:54:58,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:54:58,556 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:54:58,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58 WrapperNode [2023-11-10 11:54:58,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:54:58,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:58,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:54:58,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:54:58,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,609 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2023-11-10 11:54:58,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:54:58,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:54:58,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:54:58,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:54:58,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:54:58,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:54:58,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:54:58,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:54:58,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (1/1) ... [2023-11-10 11:54:58,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:54:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:58,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 11:54:58,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 11:54:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:54:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:54:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:54:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:54:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-10 11:54:58,703 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-10 11:54:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:54:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:54:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:54:58,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:54:58,705 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:54:58,816 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:54:58,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:54:58,967 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:54:58,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:54:58,974 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:54:58,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:58 BoogieIcfgContainer [2023-11-10 11:54:58,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:54:58,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:54:58,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:54:58,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:54:58,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:54:58" (1/3) ... [2023-11-10 11:54:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9590a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:58, skipping insertion in model container [2023-11-10 11:54:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:54:58" (2/3) ... [2023-11-10 11:54:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9590a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:54:58, skipping insertion in model container [2023-11-10 11:54:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:54:58" (3/3) ... [2023-11-10 11:54:58,985 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_47-refine-protected2_true.i [2023-11-10 11:54:59,000 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:54:59,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:54:59,001 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:54:59,063 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:54:59,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 128 flow [2023-11-10 11:54:59,143 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2023-11-10 11:54:59,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:59,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 62 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-10 11:54:59,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 128 flow [2023-11-10 11:54:59,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 91 flow [2023-11-10 11:54:59,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:54:59,172 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@294754b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:54:59,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-10 11:54:59,199 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:54:59,200 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2023-11-10 11:54:59,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:54:59,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:59,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:54:59,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:54:59,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:59,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1352222544, now seen corresponding path program 1 times [2023-11-10 11:54:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:59,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567331984] [2023-11-10 11:54:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:59,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567331984] [2023-11-10 11:54:59,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567331984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:59,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:59,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:54:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157879606] [2023-11-10 11:54:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:59,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:54:59,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:59,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:54:59,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:54:59,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2023-11-10 11:54:59,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:59,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:59,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2023-11-10 11:54:59,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:59,783 INFO L124 PetriNetUnfolderBase]: 2/66 cut-off events. [2023-11-10 11:54:59,783 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-10 11:54:59,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 146 event pairs, 0 based on Foata normal form. 3/68 useless extension candidates. Maximal degree in co-relation 69. Up to 12 conditions per place. [2023-11-10 11:54:59,785 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 11 selfloop transitions, 2 changer transitions 8/52 dead transitions. [2023-11-10 11:54:59,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 52 transitions, 149 flow [2023-11-10 11:54:59,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-10 11:54:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-10 11:54:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 297 transitions. [2023-11-10 11:54:59,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.684331797235023 [2023-11-10 11:54:59,803 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 297 transitions. [2023-11-10 11:54:59,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 297 transitions. [2023-11-10 11:54:59,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:59,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 297 transitions. [2023-11-10 11:54:59,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.42857142857143) internal successors, (297), 7 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:59,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:59,818 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:59,819 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 7 states and 297 transitions. [2023-11-10 11:54:59,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 52 transitions, 149 flow [2023-11-10 11:54:59,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-10 11:54:59,826 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 112 flow [2023-11-10 11:54:59,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=112, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2023-11-10 11:54:59,831 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2023-11-10 11:54:59,831 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 112 flow [2023-11-10 11:54:59,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:59,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:59,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:54:59,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:54:59,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:54:59,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash 958978304, now seen corresponding path program 1 times [2023-11-10 11:54:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:59,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282539593] [2023-11-10 11:54:59,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:59,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:59,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282539593] [2023-11-10 11:54:59,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282539593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:59,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:54:59,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:54:59,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245961914] [2023-11-10 11:54:59,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:59,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:54:59,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:54:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:54:59,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2023-11-10 11:54:59,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:54:59,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:59,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2023-11-10 11:54:59,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:00,042 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2023-11-10 11:55:00,043 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-10 11:55:00,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 41 events. 0/41 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-11-10 11:55:00,043 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 9 selfloop transitions, 5 changer transitions 2/40 dead transitions. [2023-11-10 11:55:00,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 40 transitions, 126 flow [2023-11-10 11:55:00,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 11:55:00,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 11:55:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2023-11-10 11:55:00,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7123655913978495 [2023-11-10 11:55:00,046 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 265 transitions. [2023-11-10 11:55:00,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 265 transitions. [2023-11-10 11:55:00,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:00,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 265 transitions. [2023-11-10 11:55:00,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,051 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 112 flow. Second operand 6 states and 265 transitions. [2023-11-10 11:55:00,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 40 transitions, 126 flow [2023-11-10 11:55:00,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 40 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-10 11:55:00,054 INFO L231 Difference]: Finished difference. Result has 53 places, 38 transitions, 94 flow [2023-11-10 11:55:00,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=38} [2023-11-10 11:55:00,055 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2023-11-10 11:55:00,055 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 94 flow [2023-11-10 11:55:00,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:00,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:55:00,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:55:00,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-10 11:55:00,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:00,057 INFO L85 PathProgramCache]: Analyzing trace with hash -997972980, now seen corresponding path program 1 times [2023-11-10 11:55:00,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727504999] [2023-11-10 11:55:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:00,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:55:00,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:00,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727504999] [2023-11-10 11:55:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727504999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:55:00,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:55:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011448221] [2023-11-10 11:55:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:00,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:55:00,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:55:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:55:00,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2023-11-10 11:55:00,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 38 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:00,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2023-11-10 11:55:00,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:00,190 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-10 11:55:00,190 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-10 11:55:00,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 36 events. 0/36 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-10 11:55:00,191 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-11-10 11:55:00,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 36 transitions, 104 flow [2023-11-10 11:55:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:55:00,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:55:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 203 transitions. [2023-11-10 11:55:00,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6548387096774193 [2023-11-10 11:55:00,193 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 203 transitions. [2023-11-10 11:55:00,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 203 transitions. [2023-11-10 11:55:00,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:00,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 203 transitions. [2023-11-10 11:55:00,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 62.0) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,195 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 62.0) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,195 INFO L175 Difference]: Start difference. First operand has 53 places, 38 transitions, 94 flow. Second operand 5 states and 203 transitions. [2023-11-10 11:55:00,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 36 transitions, 104 flow [2023-11-10 11:55:00,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 36 transitions, 92 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-10 11:55:00,197 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2023-11-10 11:55:00,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2023-11-10 11:55:00,198 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2023-11-10 11:55:00,198 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2023-11-10 11:55:00,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:55:00,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-10 11:55:00,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-10 11:55:00,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-10 11:55:00,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:55:00,201 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-10 11:55:00,205 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:55:00,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:55:00,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:55:00 BasicIcfg [2023-11-10 11:55:00,213 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:55:00,214 INFO L158 Benchmark]: Toolchain (without parser) took 2069.47ms. Allocated memory is still 244.3MB. Free memory was 196.5MB in the beginning and 143.5MB in the end (delta: 52.9MB). Peak memory consumption was 53.3MB. Max. memory is 8.0GB. [2023-11-10 11:55:00,214 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 194.0MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:55:00,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.50ms. Allocated memory is still 244.3MB. Free memory was 196.0MB in the beginning and 177.4MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-10 11:55:00,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.85ms. Allocated memory is still 244.3MB. Free memory was 177.4MB in the beginning and 175.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:55:00,218 INFO L158 Benchmark]: Boogie Preprocessor took 30.25ms. Allocated memory is still 244.3MB. Free memory was 175.5MB in the beginning and 174.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 11:55:00,218 INFO L158 Benchmark]: RCFGBuilder took 336.17ms. Allocated memory is still 244.3MB. Free memory was 174.0MB in the beginning and 161.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-10 11:55:00,219 INFO L158 Benchmark]: TraceAbstraction took 1234.20ms. Allocated memory is still 244.3MB. Free memory was 161.2MB in the beginning and 143.5MB in the end (delta: 17.7MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. [2023-11-10 11:55:00,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 194.0MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 410.50ms. Allocated memory is still 244.3MB. Free memory was 196.0MB in the beginning and 177.4MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.85ms. Allocated memory is still 244.3MB. Free memory was 177.4MB in the beginning and 175.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.25ms. Allocated memory is still 244.3MB. Free memory was 175.5MB in the beginning and 174.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 336.17ms. Allocated memory is still 244.3MB. Free memory was 174.0MB in the beginning and 161.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1234.20ms. Allocated memory is still 244.3MB. Free memory was 161.2MB in the beginning and 143.5MB in the end (delta: 17.7MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 69 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 27 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=1, InterpolantAutomatonStates: 18, 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, 0.5s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:55:00,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...