/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -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/goblint-regression/28-race_reach_87-lists_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 20:05:32,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 20:05:32,571 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 [2023-11-29 20:05:32,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 20:05:32,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 20:05:32,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 20:05:32,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 20:05:32,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 20:05:32,595 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 20:05:32,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 20:05:32,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 20:05:32,595 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 20:05:32,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 20:05:32,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 20:05:32,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 20:05:32,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 20:05:32,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 20:05:32,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 20:05:32,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 20:05:32,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 20:05:32,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 20:05:32,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 20:05:32,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 20:05:32,603 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 20:05:32,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 20:05:32,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:05:32,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 20:05:32,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 20:05:32,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 20:05:32,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 20:05:32,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 20:05:32,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 20:05:32,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 20:05:32,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 20:05:32,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 20:05:32,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 20:05:32,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 20:05:32,816 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 20:05:32,816 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 20:05:32,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-11-29 20:05:33,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 20:05:34,060 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 20:05:34,061 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-11-29 20:05:34,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33146d7ed/63f7b8a5c3d6404e860a403c8549ae2b/FLAG3fdd79875 [2023-11-29 20:05:34,088 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33146d7ed/63f7b8a5c3d6404e860a403c8549ae2b [2023-11-29 20:05:34,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 20:05:34,090 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 20:05:34,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 20:05:34,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 20:05:34,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 20:05:34,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e2d314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34, skipping insertion in model container [2023-11-29 20:05:34,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 20:05:34,438 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/28-race_reach_87-lists_racefree.i[47038,47051] [2023-11-29 20:05:34,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:05:34,533 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 20:05:34,559 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/28-race_reach_87-lists_racefree.i[47038,47051] [2023-11-29 20:05:34,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:05:34,607 INFO L206 MainTranslator]: Completed translation [2023-11-29 20:05:34,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34 WrapperNode [2023-11-29 20:05:34,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 20:05:34,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 20:05:34,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 20:05:34,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 20:05:34,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,645 INFO L138 Inliner]: procedures = 279, calls = 68, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 258 [2023-11-29 20:05:34,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 20:05:34,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 20:05:34,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 20:05:34,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 20:05:34,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 20:05:34,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 20:05:34,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 20:05:34,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 20:05:34,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (1/1) ... [2023-11-29 20:05:34,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:05:34,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:05:34,706 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) [2023-11-29 20:05:34,722 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 [2023-11-29 20:05:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 20:05:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 20:05:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-29 20:05:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-29 20:05:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 20:05:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-29 20:05:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 20:05:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 20:05:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 20:05:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 20:05:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 20:05:34,736 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 20:05:34,866 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 20:05:34,868 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 20:05:35,201 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 20:05:35,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 20:05:35,235 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 20:05:35,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:05:35 BoogieIcfgContainer [2023-11-29 20:05:35,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 20:05:35,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 20:05:35,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 20:05:35,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 20:05:35,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:05:34" (1/3) ... [2023-11-29 20:05:35,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9986f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:05:35, skipping insertion in model container [2023-11-29 20:05:35,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:34" (2/3) ... [2023-11-29 20:05:35,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9986f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:05:35, skipping insertion in model container [2023-11-29 20:05:35,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:05:35" (3/3) ... [2023-11-29 20:05:35,241 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2023-11-29 20:05:35,251 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 20:05:35,251 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 20:05:35,251 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 20:05:35,315 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 20:05:35,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 265 transitions, 550 flow [2023-11-29 20:05:35,475 INFO L124 PetriNetUnfolderBase]: 57/493 cut-off events. [2023-11-29 20:05:35,475 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-29 20:05:35,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 493 events. 57/493 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1956 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2023-11-29 20:05:35,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 265 transitions, 550 flow [2023-11-29 20:05:35,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 265 transitions, 550 flow [2023-11-29 20:05:35,506 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 20:05:35,512 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;@b066bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 20:05:35,512 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 20:05:35,532 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 20:05:35,532 INFO L124 PetriNetUnfolderBase]: 9/117 cut-off events. [2023-11-29 20:05:35,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 20:05:35,533 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:05:35,533 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:05:35,534 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 20:05:35,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:05:35,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2122682884, now seen corresponding path program 1 times [2023-11-29 20:05:35,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:05:35,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589324067] [2023-11-29 20:05:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:05:35,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:05:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:05:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:35,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:05:35,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589324067] [2023-11-29 20:05:35,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589324067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:05:35,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:05:35,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 20:05:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527971131] [2023-11-29 20:05:35,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:05:35,849 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 20:05:35,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:05:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 20:05:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 20:05:35,876 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 265 [2023-11-29 20:05:35,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 265 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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) [2023-11-29 20:05:35,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:05:35,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 265 [2023-11-29 20:05:35,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:05:36,148 INFO L124 PetriNetUnfolderBase]: 171/1470 cut-off events. [2023-11-29 20:05:36,148 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-11-29 20:05:36,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 1470 events. 171/1470 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10128 event pairs, 110 based on Foata normal form. 297/1679 useless extension candidates. Maximal degree in co-relation 1019. Up to 263 conditions per place. [2023-11-29 20:05:36,157 INFO L140 encePairwiseOnDemand]: 243/265 looper letters, 29 selfloop transitions, 2 changer transitions 2/250 dead transitions. [2023-11-29 20:05:36,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 250 transitions, 586 flow [2023-11-29 20:05:36,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 20:05:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 20:05:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2023-11-29 20:05:36,171 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8867924528301887 [2023-11-29 20:05:36,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2023-11-29 20:05:36,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2023-11-29 20:05:36,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:05:36,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2023-11-29 20:05:36,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-11-29 20:05:36,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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) [2023-11-29 20:05:36,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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) [2023-11-29 20:05:36,188 INFO L307 CegarLoopForPetriNet]: 243 programPoint places, 1 predicate places. [2023-11-29 20:05:36,188 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 250 transitions, 586 flow [2023-11-29 20:05:36,188 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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) [2023-11-29 20:05:36,189 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:05:36,189 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:05:36,189 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 20:05:36,190 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 20:05:36,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:05:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash -501603975, now seen corresponding path program 1 times [2023-11-29 20:05:36,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:05:36,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185662136] [2023-11-29 20:05:36,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:05:36,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:05:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:05:36,374 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:36,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:05:36,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185662136] [2023-11-29 20:05:36,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185662136] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 20:05:36,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992025425] [2023-11-29 20:05:36,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:05:36,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:05:36,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:05:36,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 20:05:36,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 20:05:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:05:36,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 20:05:36,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:05:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:36,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:05:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992025425] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:05:36,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 20:05:36,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 20:05:36,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488713910] [2023-11-29 20:05:36,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 20:05:36,586 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 20:05:36,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:05:36,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 20:05:36,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 20:05:36,589 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 265 [2023-11-29 20:05:36,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 250 transitions, 586 flow. Second operand has 10 states, 10 states have (on average 218.5) internal successors, (2185), 10 states have internal predecessors, (2185), 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) [2023-11-29 20:05:36,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:05:36,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 265 [2023-11-29 20:05:36,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:05:36,880 INFO L124 PetriNetUnfolderBase]: 171/1488 cut-off events. [2023-11-29 20:05:36,880 INFO L125 PetriNetUnfolderBase]: For 273/287 co-relation queries the response was YES. [2023-11-29 20:05:36,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 1488 events. 171/1488 cut-off events. For 273/287 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9990 event pairs, 110 based on Foata normal form. 0/1400 useless extension candidates. Maximal degree in co-relation 1178. Up to 269 conditions per place. [2023-11-29 20:05:36,886 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 31 selfloop transitions, 9 changer transitions 2/258 dead transitions. [2023-11-29 20:05:36,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 258 transitions, 698 flow [2023-11-29 20:05:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 20:05:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 20:05:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1988 transitions. [2023-11-29 20:05:36,889 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8335429769392033 [2023-11-29 20:05:36,889 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1988 transitions. [2023-11-29 20:05:36,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1988 transitions. [2023-11-29 20:05:36,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:05:36,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1988 transitions. [2023-11-29 20:05:36,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 220.88888888888889) internal successors, (1988), 9 states have internal predecessors, (1988), 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) [2023-11-29 20:05:36,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 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) [2023-11-29 20:05:36,897 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 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) [2023-11-29 20:05:36,898 INFO L307 CegarLoopForPetriNet]: 243 programPoint places, 9 predicate places. [2023-11-29 20:05:36,898 INFO L500 AbstractCegarLoop]: Abstraction has has 252 places, 258 transitions, 698 flow [2023-11-29 20:05:36,899 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 218.5) internal successors, (2185), 10 states have internal predecessors, (2185), 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) [2023-11-29 20:05:36,899 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:05:36,899 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:05:36,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 20:05:37,124 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:05:37,125 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 20:05:37,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:05:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2005181027, now seen corresponding path program 2 times [2023-11-29 20:05:37,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:05:37,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095242260] [2023-11-29 20:05:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:05:37,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:05:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:05:37,390 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:37,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:05:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095242260] [2023-11-29 20:05:37,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095242260] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 20:05:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480810595] [2023-11-29 20:05:37,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 20:05:37,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:05:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:05:37,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 20:05:37,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 20:05:37,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 20:05:37,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:05:37,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 20:05:37,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:05:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:37,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:05:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:37,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480810595] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:05:37,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 20:05:37,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 20:05:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595771460] [2023-11-29 20:05:37,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 20:05:37,668 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 20:05:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:05:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 20:05:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 20:05:37,672 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 265 [2023-11-29 20:05:37,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 258 transitions, 698 flow. Second operand has 18 states, 18 states have (on average 218.72222222222223) internal successors, (3937), 18 states have internal predecessors, (3937), 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) [2023-11-29 20:05:37,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:05:37,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 265 [2023-11-29 20:05:37,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:05:38,086 INFO L124 PetriNetUnfolderBase]: 171/1552 cut-off events. [2023-11-29 20:05:38,086 INFO L125 PetriNetUnfolderBase]: For 570/598 co-relation queries the response was YES. [2023-11-29 20:05:38,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1552 events. 171/1552 cut-off events. For 570/598 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9991 event pairs, 110 based on Foata normal form. 0/1464 useless extension candidates. Maximal degree in co-relation 1337. Up to 289 conditions per place. [2023-11-29 20:05:38,093 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 43 selfloop transitions, 21 changer transitions 2/282 dead transitions. [2023-11-29 20:05:38,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 282 transitions, 966 flow [2023-11-29 20:05:38,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 20:05:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 20:05:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4606 transitions. [2023-11-29 20:05:38,100 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8276729559748428 [2023-11-29 20:05:38,100 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4606 transitions. [2023-11-29 20:05:38,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4606 transitions. [2023-11-29 20:05:38,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:05:38,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4606 transitions. [2023-11-29 20:05:38,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 219.33333333333334) internal successors, (4606), 21 states have internal predecessors, (4606), 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) [2023-11-29 20:05:38,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 265.0) internal successors, (5830), 22 states have internal predecessors, (5830), 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) [2023-11-29 20:05:38,116 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 265.0) internal successors, (5830), 22 states have internal predecessors, (5830), 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) [2023-11-29 20:05:38,117 INFO L307 CegarLoopForPetriNet]: 243 programPoint places, 29 predicate places. [2023-11-29 20:05:38,117 INFO L500 AbstractCegarLoop]: Abstraction has has 272 places, 282 transitions, 966 flow [2023-11-29 20:05:38,118 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 218.72222222222223) internal successors, (3937), 18 states have internal predecessors, (3937), 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) [2023-11-29 20:05:38,118 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:05:38,118 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:05:38,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 20:05:38,323 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 20:05:38,324 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 20:05:38,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:05:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash -594596809, now seen corresponding path program 3 times [2023-11-29 20:05:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:05:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760832871] [2023-11-29 20:05:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:05:38,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:05:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:05:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 343 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:05:38,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:05:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760832871] [2023-11-29 20:05:38,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760832871] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 20:05:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424021988] [2023-11-29 20:05:38,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 20:05:38,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:05:38,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:05:38,851 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 20:05:38,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2023-11-29 20:20:23,819 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 20:20:23,846 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 20:20:24,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-29 20:20:25,047 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2023-11-29 20:20:25,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2023-11-29 20:20:25,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:20:25,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 20:20:25,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 20:20:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593441121] [2023-11-29 20:20:25,081 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 20:20:25,081 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 20:20:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:20:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 20:20:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-29 20:20:25,085 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 265 [2023-11-29 20:20:25,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 282 transitions, 966 flow. Second operand has 17 states, 17 states have (on average 218.76470588235293) internal successors, (3719), 17 states have internal predecessors, (3719), 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) [2023-11-29 20:20:25,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:20:25,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 265 [2023-11-29 20:20:25,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:20:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 20:20:25,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-29 20:20:25,089 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 20:20:25,089 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 216/265 universal loopers) in iteration 4,while PetriNetUnfolder was constructing finite prefix that currently has 8 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2023-11-29 20:20:25,090 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-29 20:20:25,091 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 20:20:25,091 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-29 20:20:25,091 INFO L457 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-29 20:20:25,094 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 20:20:25,094 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 20:20:25,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:20:25 BasicIcfg [2023-11-29 20:20:25,103 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 20:20:25,105 INFO L158 Benchmark]: Toolchain (without parser) took 891013.10ms. Allocated memory was 604.0MB in the beginning and 771.8MB in the end (delta: 167.8MB). Free memory was 554.0MB in the beginning and 445.6MB in the end (delta: 108.4MB). Peak memory consumption was 278.8MB. Max. memory is 16.0GB. [2023-11-29 20:20:25,105 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 352.3MB. Free memory was 297.4MB in the beginning and 297.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 20:20:25,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.93ms. Allocated memory is still 604.0MB. Free memory was 553.7MB in the beginning and 517.8MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2023-11-29 20:20:25,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.70ms. Allocated memory is still 604.0MB. Free memory was 517.5MB in the beginning and 514.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:20:25,106 INFO L158 Benchmark]: Boogie Preprocessor took 26.83ms. Allocated memory is still 604.0MB. Free memory was 514.4MB in the beginning and 511.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:20:25,106 INFO L158 Benchmark]: RCFGBuilder took 563.51ms. Allocated memory is still 604.0MB. Free memory was 511.9MB in the beginning and 544.8MB in the end (delta: -32.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.0GB. [2023-11-29 20:20:25,106 INFO L158 Benchmark]: TraceAbstraction took 889865.39ms. Allocated memory was 604.0MB in the beginning and 771.8MB in the end (delta: 167.8MB). Free memory was 543.7MB in the beginning and 445.6MB in the end (delta: 98.1MB). Peak memory consumption was 265.9MB. Max. memory is 16.0GB. [2023-11-29 20:20:25,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 352.3MB. Free memory was 297.4MB in the beginning and 297.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 514.93ms. Allocated memory is still 604.0MB. Free memory was 553.7MB in the beginning and 517.8MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.70ms. Allocated memory is still 604.0MB. Free memory was 517.5MB in the beginning and 514.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.83ms. Allocated memory is still 604.0MB. Free memory was 514.4MB in the beginning and 511.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 563.51ms. Allocated memory is still 604.0MB. Free memory was 511.9MB in the beginning and 544.8MB in the end (delta: -32.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.0GB. * TraceAbstraction took 889865.39ms. Allocated memory was 604.0MB in the beginning and 771.8MB in the end (delta: 167.8MB). Free memory was 543.7MB in the beginning and 445.6MB in the end (delta: 98.1MB). Peak memory consumption was 265.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1051]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 216/265 universal loopers) in iteration 4,while PetriNetUnfolder was constructing finite prefix that currently has 8 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 216/265 universal loopers) in iteration 4,while PetriNetUnfolder was constructing finite prefix that currently has 8 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 216/265 universal loopers) in iteration 4,while PetriNetUnfolder was constructing finite prefix that currently has 8 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 377 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 889.7s, OverallIterations: 4, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 18 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 366 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=966occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 680 ConstructedInterpolants, 0 QuantifiedInterpolants, 1304 SizeOfPredicates, 8 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 40/539 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown