/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/chunk06/safe015_rmo.line734.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-20 09:07:48,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-20 09:07:48,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-20 09:07:48,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-20 09:07:48,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-20 09:07:48,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-20 09:07:48,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-20 09:07:48,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-20 09:07:48,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-20 09:07:48,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-20 09:07:48,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-20 09:07:48,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-20 09:07:48,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-20 09:07:48,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-20 09:07:48,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-20 09:07:48,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-20 09:07:48,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-20 09:07:48,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-20 09:07:48,666 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-20 09:07:48,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-20 09:07:48,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-20 09:07:48,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-20 09:07:48,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-20 09:07:48,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-20 09:07:48,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-20 09:07:48,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-20 09:07:48,672 INFO L138 SettingsManager]: * Use SBE=true [2022-10-20 09:07:48,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-20 09:07:48,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-20 09:07:48,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-20 09:07:48,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-20 09:07:48,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-20 09:07:48,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-20 09:07:48,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-20 09:07:48,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-20 09:07:48,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-20 09:07:48,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-20 09:07:48,674 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-20 09:07:48,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-20 09:07:48,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-20 09:07:48,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-20 09:07:48,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-20 09:07:48,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-20 09:07:48,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 09:07:48,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-20 09:07:48,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-20 09:07:48,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-20 09:07:48,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-20 09:07:48,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-20 09:07:48,679 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-20 09:07:48,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-20 09:07:48,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-20 09:07:48,680 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-20 09:07:48,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-20 09:07:49,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-20 09:07:49,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-20 09:07:49,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-20 09:07:49,055 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-20 09:07:49,056 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-20 09:07:49,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk06/safe015_rmo.line734.bpl [2022-10-20 09:07:49,058 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk06/safe015_rmo.line734.bpl' [2022-10-20 09:07:49,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-20 09:07:49,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-20 09:07:49,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-20 09:07:49,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-20 09:07:49,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-20 09:07:49,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,211 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-20 09:07:49,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-20 09:07:49,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-20 09:07:49,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-20 09:07:49,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-20 09:07:49,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-20 09:07:49,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-20 09:07:49,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-20 09:07:49,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-20 09:07:49,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/1) ... [2022-10-20 09:07:49,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 09:07:49,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 09:07:49,317 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) [2022-10-20 09:07:49,325 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 [2022-10-20 09:07:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-20 09:07:49,365 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-20 09:07:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-20 09:07:49,366 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-20 09:07:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-20 09:07:49,366 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-20 09:07:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-20 09:07:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-20 09:07:49,369 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-20 09:07:49,585 INFO L234 CfgBuilder]: Building ICFG [2022-10-20 09:07:49,587 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-20 09:07:50,581 INFO L275 CfgBuilder]: Performing block encoding [2022-10-20 09:07:50,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-20 09:07:50,616 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-20 09:07:50,619 INFO L202 PluginConnector]: Adding new model safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 09:07:50 BoogieIcfgContainer [2022-10-20 09:07:50,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-20 09:07:50,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-20 09:07:50,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-20 09:07:50,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-20 09:07:50,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 09:07:49" (1/2) ... [2022-10-20 09:07:50,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1629596 and model type safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 09:07:50, skipping insertion in model container [2022-10-20 09:07:50,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe015_rmo.line734.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 09:07:50" (2/2) ... [2022-10-20 09:07:50,630 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_rmo.line734.bpl [2022-10-20 09:07:50,637 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-20 09:07:50,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-20 09:07:50,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-20 09:07:50,646 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-20 09:07:50,835 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-20 09:07:50,895 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:07:50,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 09:07:50,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 09:07:50,898 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) [2022-10-20 09:07:50,899 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 [2022-10-20 09:07:50,934 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 09:07:50,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-20 09:07:50,947 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;@61db0b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:07:50,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 09:07:50,950 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-20 09:07:50,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-20 09:07:50,957 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-20 09:07:50,959 INFO L307 ceAbstractionStarter]: Result for error location P2Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-20 09:07:50,972 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:07:50,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 09:07:50,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 09:07:50,975 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) [2022-10-20 09:07:50,981 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 [2022-10-20 09:07:50,984 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 09:07:50,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-20 09:07:50,986 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;@61db0b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:07:50,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 09:07:51,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-20 09:07:51,548 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-20 09:07:51,548 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-20 09:07:51,562 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:07:51,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 09:07:51,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 09:07:51,565 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) [2022-10-20 09:07:51,566 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 [2022-10-20 09:07:51,569 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 09:07:51,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-20 09:07:51,570 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;@61db0b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:07:51,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 09:08:13,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-20 09:08:13,890 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-20 09:08:13,890 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-20 09:08:13,898 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:08:13,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 09:08:13,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 09:08:13,902 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) [2022-10-20 09:08:13,903 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 [2022-10-20 09:08:13,910 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 09:08:13,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-20 09:08:13,911 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;@61db0b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:08:13,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 09:08:13,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-20 09:08:13,915 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-20 09:08:13,915 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-20 09:08:13,923 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:08:13,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 09:08:13,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 09:08:13,925 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) [2022-10-20 09:08:13,927 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 [2022-10-20 09:08:13,930 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 09:08:13,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-20 09:08:13,930 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;@61db0b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 09:08:13,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 09:08:13,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-20 09:08:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 09:08:13,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1726466526, now seen corresponding path program 1 times [2022-10-20 09:08:13,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 09:08:13,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278826667] [2022-10-20 09:08:13,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 09:08:13,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 09:08:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 09:08:15,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 09:08:15,115 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 09:08:15,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278826667] [2022-10-20 09:08:15,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278826667] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 09:08:15,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 09:08:15,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 09:08:15,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756701395] [2022-10-20 09:08:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 09:08:15,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 09:08:15,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 09:08:15,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 09:08:15,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-20 09:08:15,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:15,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 09:08:15,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 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) [2022-10-20 09:08:15,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:15,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:15,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-20 09:08:15,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-20 09:08:15,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 09:08:15,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1362113855, now seen corresponding path program 1 times [2022-10-20 09:08:15,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 09:08:15,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399985047] [2022-10-20 09:08:15,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 09:08:15,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 09:08:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 09:08:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 09:08:15,594 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 09:08:15,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399985047] [2022-10-20 09:08:15,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399985047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 09:08:15,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 09:08:15,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 09:08:15,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436005523] [2022-10-20 09:08:15,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 09:08:15,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 09:08:15,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 09:08:15,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 09:08:15,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 09:08:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:15,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 09:08:15,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-20 09:08:15,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:15,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:15,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 09:08:15,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-20 09:08:15,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-20 09:08:15,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 09:08:15,636 INFO L85 PathProgramCache]: Analyzing trace with hash -51450207, now seen corresponding path program 1 times [2022-10-20 09:08:15,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 09:08:15,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867530847] [2022-10-20 09:08:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 09:08:15,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 09:08:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 09:08:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 09:08:15,863 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 09:08:15,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867530847] [2022-10-20 09:08:15,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867530847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 09:08:15,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 09:08:15,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 09:08:15,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031110731] [2022-10-20 09:08:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 09:08:15,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 09:08:15,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 09:08:15,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 09:08:15,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-20 09:08:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:15,867 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 09:08:15,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-20 09:08:15,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:15,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 09:08:15,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 09:08:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:15,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-20 09:08:15,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-20 09:08:15,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 09:08:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash -272558087, now seen corresponding path program 1 times [2022-10-20 09:08:15,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 09:08:15,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215377763] [2022-10-20 09:08:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 09:08:15,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 09:08:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 09:08:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 09:08:16,187 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 09:08:16,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215377763] [2022-10-20 09:08:16,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215377763] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 09:08:16,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 09:08:16,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-20 09:08:16,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202395154] [2022-10-20 09:08:16,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 09:08:16,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-20 09:08:16,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 09:08:16,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-20 09:08:16,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-20 09:08:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:16,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 09:08:16,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 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) [2022-10-20 09:08:16,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:16,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 09:08:16,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:16,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 09:08:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:16,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 09:08:16,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-20 09:08:16,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-20 09:08:16,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 09:08:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash 737632185, now seen corresponding path program 1 times [2022-10-20 09:08:16,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 09:08:16,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623245123] [2022-10-20 09:08:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 09:08:16,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 09:08:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 09:08:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 09:08:16,894 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 09:08:16,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623245123] [2022-10-20 09:08:16,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623245123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 09:08:16,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 09:08:16,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-20 09:08:16,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908320418] [2022-10-20 09:08:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 09:08:16,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-20 09:08:16,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 09:08:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-20 09:08:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-20 09:08:16,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 09:08:16,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 09:08:16,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 42.22222222222222) internal successors, (380), 10 states have internal predecessors, (380), 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) [2022-10-20 09:08:16,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:16,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 09:08:16,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 09:08:16,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 09:08:16,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.