/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line860.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 16:23:48,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 16:23:48,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 16:23:48,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 16:23:48,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 16:23:48,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 16:23:48,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 16:23:48,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 16:23:48,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 16:23:48,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 16:23:48,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 16:23:48,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 16:23:48,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 16:23:48,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 16:23:48,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 16:23:48,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 16:23:48,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 16:23:48,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 16:23:48,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 16:23:48,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 16:23:48,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 16:23:48,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 16:23:48,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 16:23:48,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 16:23:48,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 16:23:48,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 16:23:48,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 16:23:48,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 16:23:48,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 16:23:48,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 16:23:48,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 16:23:48,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 16:23:48,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 16:23:48,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 16:23:48,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 16:23:48,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 16:23:48,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 16:23:48,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 16:23:48,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 16:23:48,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 16:23:48,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 16:23:48,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-24 16:23:48,661 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 16:23:48,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 16:23:48,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 16:23:48,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 16:23:48,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 16:23:48,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 16:23:48,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 16:23:48,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 16:23:48,665 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 16:23:48,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 16:23:48,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 16:23:48,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 16:23:48,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 16:23:48,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 16:23:48,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 16:23:48,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 16:23:48,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 16:23:48,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 16:23:48,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 16:23:48,668 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 16:23:48,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 16:23:48,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 16:23:48,669 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 16:23:48,669 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 16:23:48,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 16:23:48,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 16:23:48,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 16:23:48,987 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 16:23:48,988 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 16:23:48,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line860.bpl [2022-10-24 16:23:48,990 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line860.bpl' [2022-10-24 16:23:49,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 16:23:49,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 16:23:49,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 16:23:49,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 16:23:49,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 16:23:49,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,130 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 16:23:49,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 16:23:49,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 16:23:49,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 16:23:49,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 16:23:49,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 16:23:49,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 16:23:49,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 16:23:49,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 16:23:49,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/1) ... [2022-10-24 16:23:49,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 16:23:49,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 16:23:49,246 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) [2022-10-24 16:23:49,255 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 [2022-10-24 16:23:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-24 16:23:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-24 16:23:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-24 16:23:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-24 16:23:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 16:23:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 16:23:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-24 16:23:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-24 16:23:49,285 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 16:23:49,388 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 16:23:49,389 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 16:23:50,237 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 16:23:50,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 16:23:50,252 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-24 16:23:50,254 INFO L202 PluginConnector]: Adding new model chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:23:50 BoogieIcfgContainer [2022-10-24 16:23:50,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 16:23:50,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 16:23:50,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 16:23:50,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 16:23:50,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 04:23:49" (1/2) ... [2022-10-24 16:23:50,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623212c2 and model type chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:23:50, skipping insertion in model container [2022-10-24 16:23:50,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-subst.wvr.line860.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:23:50" (2/2) ... [2022-10-24 16:23:50,260 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.line860.bpl [2022-10-24 16:23:50,266 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 16:23:50,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 16:23:50,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 16:23:50,273 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 16:23:50,425 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-24 16:23:50,473 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:23:50,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 16:23:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 16:23:50,476 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) [2022-10-24 16:23:50,482 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 [2022-10-24 16:23:50,506 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 16:23:50,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 16:23:50,517 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;@6c41454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:23:50,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 16:23:50,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 16:23:50,578 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 16:23:50,580 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/5) [2022-10-24 16:23:50,591 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:23:50,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 16:23:50,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 16:23:50,593 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) [2022-10-24 16:23:50,594 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 [2022-10-24 16:23:50,597 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 16:23:50,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 16:23:50,598 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;@6c41454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:23:50,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 16:24:21,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 16:24:21,266 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 16:24:21,267 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-24 16:24:21,277 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:24:21,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 16:24:21,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 16:24:21,279 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) [2022-10-24 16:24:21,348 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 [2022-10-24 16:24:21,365 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 16:24:21,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 16:24:21,368 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;@6c41454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:24:21,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 16:24:21,518 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 16:24:21,519 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 16:24:21,520 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-24 16:24:21,526 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:24:21,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 16:24:21,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 16:24:21,529 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) [2022-10-24 16:24:21,529 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 [2022-10-24 16:24:21,532 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 16:24:21,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread3Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 16:24:21,533 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;@6c41454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:24:21,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 16:24:21,533 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-24 16:24:21,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-24 16:24:21,534 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 16:24:21,534 INFO L307 ceAbstractionStarter]: Result for error location thread3Err0ASSERT_VIOLATIONASSERT was SAFE (4/5) [2022-10-24 16:24:21,541 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:24:21,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 16:24:21,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 16:24:21,565 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) [2022-10-24 16:24:21,579 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 [2022-10-24 16:24:21,584 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 16:24:21,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread3Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 16:24:21,585 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;@6c41454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 16:24:21,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 16:24:21,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:24:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:24:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1733696410, now seen corresponding path program 1 times [2022-10-24 16:24:21,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:24:21,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181918665] [2022-10-24 16:24:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:24:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:24:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:24:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 16:24:22,537 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:24:22,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181918665] [2022-10-24 16:24:22,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181918665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 16:24:22,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 16:24:22,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 16:24:22,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99990570] [2022-10-24 16:24:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 16:24:22,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 16:24:22,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:24:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 16:24:22,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 16:24:22,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:24:22,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:24:22,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 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) [2022-10-24 16:24:22,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:25:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:25:32,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 16:25:32,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:25:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:25:32,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1164103383, now seen corresponding path program 1 times [2022-10-24 16:25:32,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:25:32,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972386773] [2022-10-24 16:25:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:25:32,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:25:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:25:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 16:25:32,589 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:25:32,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972386773] [2022-10-24 16:25:32,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972386773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 16:25:32,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 16:25:32,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-24 16:25:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185134556] [2022-10-24 16:25:32,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 16:25:32,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 16:25:32,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:25:32,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 16:25:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-24 16:25:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:25:32,594 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:25:32,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 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) [2022-10-24 16:25:32,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:25:32,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:26:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:26:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:26:13,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 16:26:13,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:26:13,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:26:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1589421057, now seen corresponding path program 1 times [2022-10-24 16:26:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:26:13,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528137317] [2022-10-24 16:26:13,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:26:13,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:26:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:26:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-24 16:26:14,152 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:26:14,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528137317] [2022-10-24 16:26:14,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528137317] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 16:26:14,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 16:26:14,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-10-24 16:26:14,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762453935] [2022-10-24 16:26:14,154 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 16:26:14,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 16:26:14,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:26:14,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 16:26:14,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-24 16:26:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:26:14,155 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:26:14,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 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) [2022-10-24 16:26:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:26:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:26:14,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:27:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:27:03,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 16:27:03,861 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:27:03,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:27:03,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1428215145, now seen corresponding path program 2 times [2022-10-24 16:27:03,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:27:03,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898743312] [2022-10-24 16:27:03,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:27:03,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:27:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:27:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-24 16:27:04,053 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:27:04,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898743312] [2022-10-24 16:27:04,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898743312] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 16:27:04,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 16:27:04,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2022-10-24 16:27:04,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215207029] [2022-10-24 16:27:04,054 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 16:27:04,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-24 16:27:04,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:27:04,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-24 16:27:04,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-24 16:27:04,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:04,055 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:27:04,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.0) internal successors, (387), 9 states have internal predecessors, (387), 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) [2022-10-24 16:27:04,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:04,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:27:04,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:27:04,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:27:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:27:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:27:49,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 16:27:49,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:27:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:27:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash 542413505, now seen corresponding path program 3 times [2022-10-24 16:27:49,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:27:49,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065615824] [2022-10-24 16:27:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:27:49,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:27:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:27:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-24 16:27:49,780 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:27:49,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065615824] [2022-10-24 16:27:49,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065615824] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 16:27:49,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 16:27:49,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-24 16:27:49,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475097119] [2022-10-24 16:27:49,780 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 16:27:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-24 16:27:49,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:27:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-24 16:27:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-24 16:27:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:49,783 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:27:49,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 36.36363636363637) internal successors, (400), 11 states have internal predecessors, (400), 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) [2022-10-24 16:27:49,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:27:49,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:27:49,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:27:49,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:27:49,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:28:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:28:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:28:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:28:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:28:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 16:28:41,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 16:28:41,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:28:41,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:28:41,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1029978537, now seen corresponding path program 4 times [2022-10-24 16:28:41,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:28:41,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804816502] [2022-10-24 16:28:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:28:41,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:28:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:28:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-24 16:28:41,881 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:28:41,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804816502] [2022-10-24 16:28:41,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804816502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 16:28:41,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 16:28:41,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-10-24 16:28:41,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674653130] [2022-10-24 16:28:41,882 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 16:28:41,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-24 16:28:41,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:28:41,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-24 16:28:41,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-24 16:28:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:28:41,883 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:28:41,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 31.76923076923077) internal successors, (413), 13 states have internal predecessors, (413), 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) [2022-10-24 16:28:41,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:28:41,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:28:41,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:28:41,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:28:41,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 16:28:41,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:29:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:29:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:29:27,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:29:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:29:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 16:29:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-24 16:29:27,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-24 16:29:27,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:29:27,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:29:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1958002303, now seen corresponding path program 5 times [2022-10-24 16:29:27,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:29:27,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763583571] [2022-10-24 16:29:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:29:27,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:29:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:29:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-24 16:29:28,033 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:29:28,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763583571] [2022-10-24 16:29:28,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763583571] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 16:29:28,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 16:29:28,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-24 16:29:28,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970930368] [2022-10-24 16:29:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 16:29:28,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-24 16:29:28,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:29:28,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-24 16:29:28,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-24 16:29:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:29:28,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:29:28,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.166666666666668) internal successors, (374), 13 states have internal predecessors, (374), 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) [2022-10-24 16:29:28,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:29:28,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:29:28,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:29:28,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:29:28,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 16:29:28,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-24 16:29:28,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:30:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:30:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:30:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:30:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:30:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 16:30:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-24 16:30:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-24 16:30:51,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-24 16:30:51,800 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 16:30:51,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 16:30:51,800 INFO L85 PathProgramCache]: Analyzing trace with hash 710779509, now seen corresponding path program 1 times [2022-10-24 16:30:51,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 16:30:51,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86503173] [2022-10-24 16:30:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 16:30:51,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 16:30:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 16:30:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-24 16:30:51,985 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 16:30:51,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86503173] [2022-10-24 16:30:51,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86503173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 16:30:51,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 16:30:51,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-24 16:30:51,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988517096] [2022-10-24 16:30:51,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 16:30:51,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 16:30:51,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 16:30:51,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 16:30:51,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-24 16:30:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:30:51,987 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 16:30:51,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-24 16:30:51,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.