/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line152.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 13:54:22,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 13:54:22,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 13:54:22,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 13:54:22,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 13:54:22,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 13:54:22,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 13:54:22,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 13:54:22,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 13:54:22,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 13:54:22,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 13:54:22,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 13:54:22,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 13:54:22,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 13:54:22,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 13:54:22,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 13:54:22,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 13:54:22,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 13:54:22,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 13:54:22,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 13:54:22,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 13:54:22,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 13:54:22,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 13:54:22,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 13:54:22,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 13:54:22,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 13:54:22,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 13:54:22,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 13:54:22,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 13:54:22,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 13:54:22,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 13:54:22,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 13:54:22,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 13:54:22,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 13:54:22,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 13:54:22,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 13:54:22,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 13:54:22,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 13:54:22,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 13:54:22,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 13:54:22,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 13:54:22,786 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 13:54:22,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 13:54:22,787 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 13:54:22,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 13:54:23,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 13:54:23,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 13:54:23,012 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 13:54:23,012 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 13:54:23,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line152.bpl [2022-10-03 13:54:23,014 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line152.bpl' [2022-10-03 13:54:23,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 13:54:23,077 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 13:54:23,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 13:54:23,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 13:54:23,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 13:54:23,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 13:54:23,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 13:54:23,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 13:54:23,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 13:54:23,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/1) ... [2022-10-03 13:54:23,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 13:54:23,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:54:23,246 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) [2022-10-03 13:54:23,279 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 [2022-10-03 13:54:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-03 13:54:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-03 13:54:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-03 13:54:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-03 13:54:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-03 13:54:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-03 13:54:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 13:54:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 13:54:23,313 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 13:54:23,455 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 13:54:23,457 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 13:54:24,315 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 13:54:24,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 13:54:24,329 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-03 13:54:24,332 INFO L202 PluginConnector]: Adding new model chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:54:24 BoogieIcfgContainer [2022-10-03 13:54:24,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 13:54:24,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 13:54:24,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 13:54:24,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 13:54:24,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:54:23" (1/2) ... [2022-10-03 13:54:24,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3ca1a3 and model type chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:54:24, skipping insertion in model container [2022-10-03 13:54:24,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line152.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:54:24" (2/2) ... [2022-10-03 13:54:24,340 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.line152.bpl [2022-10-03 13:54:24,345 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 13:54:24,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 13:54:24,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 13:54:24,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 13:54:24,513 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-03 13:54:24,554 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:54:24,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:54:24,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:54:24,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:54:24,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 13:54:24,609 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:54:24,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 13:54:24,620 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@520ceee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:54:24,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:54:24,622 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-03 13:54:24,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 13:54:24,627 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:54:24,629 INFO L307 ceAbstractionStarter]: Result for error location thread1Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-03 13:54:24,639 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:54:24,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:54:24,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:54:24,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:54:24,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-03 13:54:24,645 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:54:24,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 13:54:24,647 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@520ceee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:54:24,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:54:24,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 13:54:24,742 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:54:24,742 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-03 13:54:24,750 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:54:24,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:54:24,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:54:24,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:54:24,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-03 13:54:24,882 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:54:24,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 13:54:24,883 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@520ceee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:54:24,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:54:54,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 13:54:54,067 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:54:54,068 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-03 13:54:54,079 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:54:54,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:54:54,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:54:54,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:54:54,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-03 13:54:54,098 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:54:54,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 13:54:54,099 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@520ceee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:54:54,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:54:54,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 13:54:54,332 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:54:54,333 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-03 13:54:54,354 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:54:54,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:54:54,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:54:54,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:54:54,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-03 13:54:54,567 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:54:54,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 13:54:54,568 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@520ceee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:54:54,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:54:54,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:54:54,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:54:54,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1775862792, now seen corresponding path program 1 times [2022-10-03 13:54:54,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:54:54,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276562727] [2022-10-03 13:54:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:54:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:54:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:54:55,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 13:54:55,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:54:55,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276562727] [2022-10-03 13:54:55,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276562727] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:54:55,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:54:55,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 13:54:55,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047818256] [2022-10-03 13:54:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:54:55,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 13:54:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:54:55,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 13:54:55,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 13:54:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:54:55,188 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:54:55,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 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) [2022-10-03 13:54:55,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:55:56,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:55:56,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 13:55:56,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:55:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:55:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1164617195, now seen corresponding path program 1 times [2022-10-03 13:55:56,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:55:56,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063439324] [2022-10-03 13:55:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:55:56,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:55:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:55:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 13:55:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:55:56,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063439324] [2022-10-03 13:55:56,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063439324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:55:56,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:55:56,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 13:55:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993980364] [2022-10-03 13:55:56,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:55:56,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 13:55:56,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:55:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 13:55:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 13:55:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:55:56,611 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:55:56,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 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) [2022-10-03 13:55:56,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:55:56,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:56:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:56:30,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:56:30,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 13:56:30,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:56:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:56:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash 343832697, now seen corresponding path program 1 times [2022-10-03 13:56:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:56:30,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312729761] [2022-10-03 13:56:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:56:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:56:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:56:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 13:56:30,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:56:30,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312729761] [2022-10-03 13:56:30,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312729761] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:56:30,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31866788] [2022-10-03 13:56:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:56:30,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:56:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:56:30,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:56:30,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-03 13:56:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:56:30,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-03 13:56:30,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:56:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 13:56:30,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:56:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 13:56:31,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31866788] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:56:31,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:56:31,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-03 13:56:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985081378] [2022-10-03 13:56:31,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:56:31,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-03 13:56:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:56:31,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-03 13:56:31,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-03 13:56:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:56:31,010 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:56:31,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 26.2) internal successors, (393), 15 states have internal predecessors, (393), 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) [2022-10-03 13:56:31,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:56:31,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:56:31,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:57:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:57:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:57:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:57:13,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-03 13:57:13,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:57:13,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:57:13,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:57:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash -2071494279, now seen corresponding path program 2 times [2022-10-03 13:57:13,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:57:13,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934430988] [2022-10-03 13:57:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:57:13,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:57:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:57:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-03 13:57:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:57:13,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934430988] [2022-10-03 13:57:13,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934430988] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:57:13,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932969292] [2022-10-03 13:57:13,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 13:57:13,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:57:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:57:13,976 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:57:13,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-03 13:57:14,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 13:57:14,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:57:14,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-03 13:57:14,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:57:14,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 13:57:14,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 13:57:14,624 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 13:57:14,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-03 13:57:14,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-03 13:57:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-03 13:57:15,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:57:15,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932969292] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:57:15,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:57:15,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 25 [2022-10-03 13:57:15,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642631345] [2022-10-03 13:57:15,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:57:15,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-03 13:57:15,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:57:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-03 13:57:15,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-10-03 13:57:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:57:15,271 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:57:15,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 19.529411764705884) internal successors, (332), 18 states have internal predecessors, (332), 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) [2022-10-03 13:57:15,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:57:15,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:57:15,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:57:15,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:58:16,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:58:16,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:58:16,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:58:16,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-03 13:58:16,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-03 13:58:16,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:58:16,537 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:58:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:58:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash 620934886, now seen corresponding path program 1 times [2022-10-03 13:58:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:58:16,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141940735] [2022-10-03 13:58:16,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:58:16,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:58:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:58:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-03 13:58:17,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:58:17,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141940735] [2022-10-03 13:58:17,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141940735] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:58:17,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014857070] [2022-10-03 13:58:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:58:17,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:58:17,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:58:17,013 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:58:17,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-03 13:58:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:58:17,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-03 13:58:17,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:58:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-03 13:58:17,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:58:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-03 13:58:17,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014857070] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:58:17,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:58:17,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-10-03 13:58:17,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616235026] [2022-10-03 13:58:17,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:58:17,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-03 13:58:17,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:58:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-03 13:58:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-10-03 13:58:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:58:17,506 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:58:17,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 25.318181818181817) internal successors, (557), 22 states have internal predecessors, (557), 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) [2022-10-03 13:58:17,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:58:17,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:58:17,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:58:17,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-03 13:58:17,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:59:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:59:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:59:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:59:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-03 13:59:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:59:23,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-03 13:59:23,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:59:23,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:59:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:59:23,956 INFO L85 PathProgramCache]: Analyzing trace with hash 893923302, now seen corresponding path program 2 times [2022-10-03 13:59:23,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:59:23,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754409710] [2022-10-03 13:59:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:59:23,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:59:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:59:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-03 13:59:24,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:59:24,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754409710] [2022-10-03 13:59:24,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754409710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:59:24,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:59:24,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-03 13:59:24,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585832110] [2022-10-03 13:59:24,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:59:24,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-03 13:59:24,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:59:24,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-03 13:59:24,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-03 13:59:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:59:24,173 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:59:24,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.28571428571429) internal successors, (464), 7 states have internal predecessors, (464), 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) [2022-10-03 13:59:24,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:59:24,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:59:24,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:59:24,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-03 13:59:24,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:59:24,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:00:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:00:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:00:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:00:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-03 14:00:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:00:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 14:00:32,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-03 14:00:32,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:00:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:00:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash 812695561, now seen corresponding path program 1 times [2022-10-03 14:00:32,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:00:32,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494892713] [2022-10-03 14:00:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:00:32,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:00:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:00:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-03 14:00:32,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:00:32,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494892713] [2022-10-03 14:00:32,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494892713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:00:32,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:00:32,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 14:00:32,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307229183] [2022-10-03 14:00:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:00:32,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 14:00:32,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:00:32,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 14:00:32,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 14:00:32,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:00:32,240 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:00:32,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 14:00:32,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.