/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/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:47:07,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:47:07,139 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 14:47:07,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:47:07,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:47:07,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:47:07,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:47:07,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:47:07,157 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:47:07,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:47:07,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:47:07,158 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:47:07,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:47:07,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:47:07,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:47:07,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:47:07,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:47:07,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:47:07,159 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:47:07,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:47:07,160 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:47:07,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:47:07,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:47:07,163 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:47:07,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:47:07,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:47:07,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:47:07,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:47:07,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:47:07,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:47:07,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:47:07,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:47:07,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:47:07,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:47:07,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:47:07,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:47:07,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:47:07,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:47:07,366 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:47:07,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-12-09 14:47:08,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:47:08,588 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:47:08,589 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-12-09 14:47:08,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/546c6df9f/3b691399e23b464983aa737c9c6da2dc/FLAGe1068e6a1 [2023-12-09 14:47:08,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/546c6df9f/3b691399e23b464983aa737c9c6da2dc [2023-12-09 14:47:08,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:47:08,613 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:47:08,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:47:08,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:47:08,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:47:08,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:47:08" (1/1) ... [2023-12-09 14:47:08,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72012cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:08, skipping insertion in model container [2023-12-09 14:47:08,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:47:08" (1/1) ... [2023-12-09 14:47:08,658 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:47:08,947 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/singleton_with-uninit-problems.i[55568,55581] [2023-12-09 14:47:08,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:47:08,984 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:47:09,008 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/singleton_with-uninit-problems.i[55568,55581] [2023-12-09 14:47:09,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:47:09,064 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:47:09,064 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:47:09,069 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:47:09,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09 WrapperNode [2023-12-09 14:47:09,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:47:09,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:47:09,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:47:09,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:47:09,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,114 INFO L138 Inliner]: procedures = 324, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-12-09 14:47:09,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:47:09,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:47:09,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:47:09,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:47:09,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,132 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:47:09,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:47:09,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:47:09,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:47:09,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (1/1) ... [2023-12-09 14:47:09,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:47:09,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:47:09,168 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 14:47:09,170 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 14:47:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:47:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:47:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:47:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:47:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 14:47:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-12-09 14:47:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-12-09 14:47:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 14:47:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 14:47:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 14:47:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 14:47:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 14:47:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 14:47:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:47:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 14:47:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:47:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:47:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:47:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:47:09,197 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 14:47:09,314 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:47:09,316 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:47:09,481 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:47:09,500 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:47:09,500 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:47:09,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:47:09 BoogieIcfgContainer [2023-12-09 14:47:09,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:47:09,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:47:09,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:47:09,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:47:09,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:47:08" (1/3) ... [2023-12-09 14:47:09,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@838367a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:47:09, skipping insertion in model container [2023-12-09 14:47:09,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:47:09" (2/3) ... [2023-12-09 14:47:09,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@838367a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:47:09, skipping insertion in model container [2023-12-09 14:47:09,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:47:09" (3/3) ... [2023-12-09 14:47:09,508 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-12-09 14:47:09,522 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:47:09,522 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:47:09,522 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:47:09,647 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-12-09 14:47:09,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 197 transitions, 491 flow [2023-12-09 14:47:09,733 INFO L124 PetriNetUnfolderBase]: 7/134 cut-off events. [2023-12-09 14:47:09,734 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 14:47:09,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 134 events. 7/134 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 116. Up to 3 conditions per place. [2023-12-09 14:47:09,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 197 transitions, 491 flow [2023-12-09 14:47:09,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 120 transitions, 291 flow [2023-12-09 14:47:09,749 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:47:09,753 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;@75bc6945, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:47:09,753 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-09 14:47:09,788 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:47:09,788 INFO L124 PetriNetUnfolderBase]: 6/119 cut-off events. [2023-12-09 14:47:09,788 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 14:47:09,788 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:47:09,789 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, 1, 1, 1, 1, 1, 1, 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 14:47:09,789 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-09 14:47:09,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:47:09,793 INFO L85 PathProgramCache]: Analyzing trace with hash -532511536, now seen corresponding path program 1 times [2023-12-09 14:47:09,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:47:09,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402799793] [2023-12-09 14:47:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:47:09,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:47:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:47:10,405 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 14:47:10,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:47:10,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402799793] [2023-12-09 14:47:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402799793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:47:10,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:47:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:47:10,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548101425] [2023-12-09 14:47:10,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:47:10,414 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:47:10,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:47:10,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:47:10,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:47:10,448 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 199 [2023-12-09 14:47:10,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 120 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 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 14:47:10,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:47:10,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 199 [2023-12-09 14:47:10,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:47:10,652 INFO L124 PetriNetUnfolderBase]: 67/284 cut-off events. [2023-12-09 14:47:10,652 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-12-09 14:47:10,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 284 events. 67/284 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 796 event pairs, 51 based on Foata normal form. 1/258 useless extension candidates. Maximal degree in co-relation 433. Up to 125 conditions per place. [2023-12-09 14:47:10,658 INFO L140 encePairwiseOnDemand]: 195/199 looper letters, 29 selfloop transitions, 0 changer transitions 4/123 dead transitions. [2023-12-09 14:47:10,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 123 transitions, 363 flow [2023-12-09 14:47:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 14:47:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 14:47:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 774 transitions. [2023-12-09 14:47:10,676 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7778894472361809 [2023-12-09 14:47:10,677 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 774 transitions. [2023-12-09 14:47:10,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 774 transitions. [2023-12-09 14:47:10,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:47:10,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 774 transitions. [2023-12-09 14:47:10,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.8) internal successors, (774), 5 states have internal predecessors, (774), 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 14:47:10,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 199.0) internal successors, (1194), 6 states have internal predecessors, (1194), 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 14:47:10,697 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 199.0) internal successors, (1194), 6 states have internal predecessors, (1194), 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 14:47:10,700 INFO L308 CegarLoopForPetriNet]: 133 programPoint places, 4 predicate places. [2023-12-09 14:47:10,700 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 123 transitions, 363 flow [2023-12-09 14:47:10,701 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 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 14:47:10,701 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:47:10,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:10,702 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:47:10,702 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-09 14:47:10,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:47:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1334061623, now seen corresponding path program 1 times [2023-12-09 14:47:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:47:10,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058510987] [2023-12-09 14:47:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:47:10,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:47:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:47:11,523 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 14:47:11,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:47:11,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058510987] [2023-12-09 14:47:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058510987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:47:11,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:47:11,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:47:11,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913819294] [2023-12-09 14:47:11,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:47:11,525 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:47:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:47:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:47:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:47:11,527 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 199 [2023-12-09 14:47:11,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 123 transitions, 363 flow. Second operand has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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 14:47:11,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:47:11,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 199 [2023-12-09 14:47:11,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:47:11,897 INFO L124 PetriNetUnfolderBase]: 580/1373 cut-off events. [2023-12-09 14:47:11,897 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2023-12-09 14:47:11,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 1373 events. 580/1373 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7162 event pairs, 123 based on Foata normal form. 0/1287 useless extension candidates. Maximal degree in co-relation 3024. Up to 593 conditions per place. [2023-12-09 14:47:11,905 INFO L140 encePairwiseOnDemand]: 188/199 looper letters, 51 selfloop transitions, 7 changer transitions 18/151 dead transitions. [2023-12-09 14:47:11,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 151 transitions, 641 flow [2023-12-09 14:47:11,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 14:47:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 14:47:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2023-12-09 14:47:11,911 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7010050251256281 [2023-12-09 14:47:11,912 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2023-12-09 14:47:11,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2023-12-09 14:47:11,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:47:11,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2023-12-09 14:47:11,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 14:47:11,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 199.0) internal successors, (1393), 7 states have internal predecessors, (1393), 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 14:47:11,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 199.0) internal successors, (1393), 7 states have internal predecessors, (1393), 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 14:47:11,923 INFO L308 CegarLoopForPetriNet]: 133 programPoint places, 9 predicate places. [2023-12-09 14:47:11,923 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 151 transitions, 641 flow [2023-12-09 14:47:11,923 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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 14:47:11,923 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:47:11,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:11,925 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:47:11,925 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-12-09 14:47:11,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:47:11,929 INFO L85 PathProgramCache]: Analyzing trace with hash 104337453, now seen corresponding path program 2 times [2023-12-09 14:47:11,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:47:11,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177250833] [2023-12-09 14:47:11,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:47:11,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:47:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:47:12,261 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 14:47:12,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:47:12,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177250833] [2023-12-09 14:47:12,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177250833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:47:12,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:47:12,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:47:12,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42654992] [2023-12-09 14:47:12,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:47:12,262 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:47:12,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:47:12,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:47:12,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:47:12,264 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 199 [2023-12-09 14:47:12,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 151 transitions, 641 flow. Second operand has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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 14:47:12,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:47:12,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 199 [2023-12-09 14:47:12,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:47:12,625 INFO L124 PetriNetUnfolderBase]: 684/1605 cut-off events. [2023-12-09 14:47:12,625 INFO L125 PetriNetUnfolderBase]: For 790/1012 co-relation queries the response was YES. [2023-12-09 14:47:12,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4730 conditions, 1605 events. 684/1605 cut-off events. For 790/1012 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8813 event pairs, 84 based on Foata normal form. 11/1524 useless extension candidates. Maximal degree in co-relation 4615. Up to 814 conditions per place. [2023-12-09 14:47:12,635 INFO L140 encePairwiseOnDemand]: 187/199 looper letters, 0 selfloop transitions, 0 changer transitions 169/169 dead transitions. [2023-12-09 14:47:12,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 169 transitions, 957 flow [2023-12-09 14:47:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:47:12,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:47:12,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1651 transitions. [2023-12-09 14:47:12,638 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6381909547738693 [2023-12-09 14:47:12,638 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1651 transitions. [2023-12-09 14:47:12,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1651 transitions. [2023-12-09 14:47:12,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:47:12,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1651 transitions. [2023-12-09 14:47:12,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 127.0) internal successors, (1651), 13 states have internal predecessors, (1651), 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 14:47:12,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 199.0) internal successors, (2786), 14 states have internal predecessors, (2786), 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 14:47:12,647 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 199.0) internal successors, (2786), 14 states have internal predecessors, (2786), 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 14:47:12,648 INFO L308 CegarLoopForPetriNet]: 133 programPoint places, 19 predicate places. [2023-12-09 14:47:12,649 INFO L500 AbstractCegarLoop]: Abstraction has has 152 places, 169 transitions, 957 flow [2023-12-09 14:47:12,649 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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 14:47:12,697 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/singleton_with-uninit-problems.i_BEv2_AllErrorsAtOnce [2023-12-09 14:47:12,727 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-12-09 14:47:12,728 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2023-12-09 14:47:12,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2023-12-09 14:47:12,732 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-12-09 14:47:12,732 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-12-09 14:47:12,732 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2023-12-09 14:47:12,733 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-12-09 14:47:12,733 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-12-09 14:47:12,733 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-12-09 14:47:12,733 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-12-09 14:47:12,734 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-12-09 14:47:12,734 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-09 14:47:12,734 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:47:12,735 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-09 14:47:12,739 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:47:12,739 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:47:12,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:47:12 BasicIcfg [2023-12-09 14:47:12,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:47:12,752 INFO L158 Benchmark]: Toolchain (without parser) took 4137.23ms. Allocated memory was 203.4MB in the beginning and 350.2MB in the end (delta: 146.8MB). Free memory was 140.5MB in the beginning and 291.9MB in the end (delta: -151.4MB). Peak memory consumption was 184.5MB. Max. memory is 8.0GB. [2023-12-09 14:47:12,753 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory was 152.5MB in the beginning and 152.3MB in the end (delta: 122.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:47:12,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.58ms. Allocated memory is still 203.4MB. Free memory was 140.1MB in the beginning and 106.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-09 14:47:12,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 203.4MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:47:12,754 INFO L158 Benchmark]: Boogie Preprocessor took 20.76ms. Allocated memory is still 203.4MB. Free memory was 104.1MB in the beginning and 102.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:47:12,754 INFO L158 Benchmark]: RCFGBuilder took 365.33ms. Allocated memory was 203.4MB in the beginning and 350.2MB in the end (delta: 146.8MB). Free memory was 102.3MB in the beginning and 303.0MB in the end (delta: -200.7MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2023-12-09 14:47:12,758 INFO L158 Benchmark]: TraceAbstraction took 3246.67ms. Allocated memory is still 350.2MB. Free memory was 301.9MB in the beginning and 291.9MB in the end (delta: 10.1MB). Peak memory consumption was 198.3MB. Max. memory is 8.0GB. [2023-12-09 14:47:12,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 203.4MB. Free memory was 152.5MB in the beginning and 152.3MB in the end (delta: 122.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 456.58ms. Allocated memory is still 203.4MB. Free memory was 140.1MB in the beginning and 106.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 203.4MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.76ms. Allocated memory is still 203.4MB. Free memory was 104.1MB in the beginning and 102.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 365.33ms. Allocated memory was 203.4MB in the beginning and 350.2MB in the end (delta: 146.8MB). Free memory was 102.3MB in the beginning and 303.0MB in the end (delta: -200.7MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3246.67ms. Allocated memory is still 350.2MB. Free memory was 301.9MB in the beginning and 291.9MB in the end (delta: 10.1MB). Peak memory consumption was 198.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1123]: 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 11 procedures, 226 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 132 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 560 IncrementalHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 47 mSDtfsCounter, 560 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=957occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 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 14:47:12,774 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...