/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line576.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 21:16:31,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 21:16:31,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 21:16:31,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 21:16:31,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 21:16:31,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 21:16:31,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 21:16:31,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 21:16:31,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 21:16:31,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 21:16:31,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 21:16:31,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 21:16:31,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 21:16:31,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 21:16:31,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 21:16:31,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 21:16:31,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 21:16:31,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 21:16:31,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 21:16:31,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 21:16:31,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 21:16:31,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 21:16:31,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 21:16:31,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 21:16:31,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 21:16:31,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 21:16:31,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 21:16:31,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 21:16:31,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 21:16:31,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-29 21:16:31,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 21:16:31,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 21:16:31,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 21:16:31,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 21:16:31,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 21:16:31,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 21:16:31,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 21:16:31,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 21:16:31,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 21:16:31,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 21:16:31,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 21:16:31,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 21:16:31,392 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 21:16:31,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 21:16:31,393 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 21:16:31,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 21:16:31,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 21:16:31,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 21:16:31,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 21:16:31,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 21:16:31,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 21:16:31,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 21:16:31,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 21:16:31,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:16:31,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 21:16:31,396 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 21:16:31,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 21:16:31,397 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 21:16:31,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 21:16:31,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 21:16:31,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 21:16:31,632 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 21:16:31,633 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 21:16:31,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line576.bpl [2022-09-29 21:16:31,634 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line576.bpl' [2022-09-29 21:16:31,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 21:16:31,685 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 21:16:31,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 21:16:31,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 21:16:31,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 21:16:31,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 21:16:31,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 21:16:31,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 21:16:31,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 21:16:31,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/1) ... [2022-09-29 21:16:31,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:16:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:16:31,815 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) [2022-09-29 21:16:31,831 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 [2022-09-29 21:16:31,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 21:16:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 21:16:31,850 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 21:16:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 21:16:31,850 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-29 21:16:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-29 21:16:31,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 21:16:31,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 21:16:31,852 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 21:16:32,019 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 21:16:32,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 21:16:32,844 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 21:16:32,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 21:16:32,860 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-29 21:16:32,862 INFO L202 PluginConnector]: Adding new model chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:16:32 BoogieIcfgContainer [2022-09-29 21:16:32,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 21:16:32,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 21:16:32,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 21:16:32,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 21:16:32,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:16:31" (1/2) ... [2022-09-29 21:16:32,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54150ea and model type chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 09:16:32, skipping insertion in model container [2022-09-29 21:16:32,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line576.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:16:32" (2/2) ... [2022-09-29 21:16:32,888 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.line576.bpl [2022-09-29 21:16:32,894 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 21:16:32,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 21:16:32,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 21:16:32,901 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 21:16:33,087 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-29 21:16:33,209 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:16:33,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:16:33,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:16:33,247 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) [2022-09-29 21:16:33,249 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 [2022-09-29 21:16:33,282 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:16:33,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:16:33,313 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;@6606e1df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:16:33,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:16:33,316 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-29 21:16:33,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 21:16:33,337 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:16:33,339 INFO L307 ceAbstractionStarter]: Result for error location thread2Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-09-29 21:16:33,350 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:16:33,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:16:33,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:16:33,352 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) [2022-09-29 21:16:33,353 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 [2022-09-29 21:16:33,357 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:16:33,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 21:16:33,358 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;@6606e1df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:16:33,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:16:33,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 21:16:33,441 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:16:33,441 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-09-29 21:16:33,449 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:16:33,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:16:33,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:16:33,499 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) [2022-09-29 21:16:33,500 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 [2022-09-29 21:16:33,509 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:16:33,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 21:16:33,511 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;@6606e1df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:16:33,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:17:03,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 21:17:03,129 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:17:03,130 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-09-29 21:17:03,168 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:17:03,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:17:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:17:03,184 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) [2022-09-29 21:17:03,185 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 [2022-09-29 21:17:03,189 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:17:03,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 21:17:03,190 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;@6606e1df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:17:03,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:17:03,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 21:17:03,397 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 21:17:03,398 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-09-29 21:17:03,405 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:17:03,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:17:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:17:03,435 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) [2022-09-29 21:17:03,439 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 [2022-09-29 21:17:03,444 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:17:03,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:17:03,450 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;@6606e1df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:17:03,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:17:03,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:17:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:17:03,536 INFO L85 PathProgramCache]: Analyzing trace with hash 350993362, now seen corresponding path program 1 times [2022-09-29 21:17:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:17:03,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080108703] [2022-09-29 21:17:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:17:03,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:17:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:17:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:17:04,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:17:04,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080108703] [2022-09-29 21:17:04,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080108703] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:17:04,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:17:04,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 21:17:04,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907939624] [2022-09-29 21:17:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:17:04,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 21:17:04,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:17:04,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 21:17:04,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 21:17:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:17:04,370 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:17:04,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 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) [2022-09-29 21:17:04,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:07,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 21:18:07,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:18:07,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:18:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2036571969, now seen corresponding path program 1 times [2022-09-29 21:18:07,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:18:07,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290789766] [2022-09-29 21:18:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:18:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:18:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:18:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:18:07,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:18:07,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290789766] [2022-09-29 21:18:07,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290789766] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:18:07,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:18:07,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 21:18:07,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373518953] [2022-09-29 21:18:07,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:18:07,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 21:18:07,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:18:07,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 21:18:07,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 21:18:07,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:07,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:18:07,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 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) [2022-09-29 21:18:07,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:07,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:42,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:18:42,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 21:18:42,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:18:42,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:18:42,180 INFO L85 PathProgramCache]: Analyzing trace with hash 223971479, now seen corresponding path program 1 times [2022-09-29 21:18:42,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:18:42,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221395330] [2022-09-29 21:18:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:18:42,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:18:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:18:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:18:42,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:18:42,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221395330] [2022-09-29 21:18:42,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221395330] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:18:42,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829088161] [2022-09-29 21:18:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:18:42,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:18:42,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:18:42,431 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:18:42,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-29 21:18:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:18:42,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-29 21:18:42,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:18:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:18:42,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:18:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:18:43,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829088161] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:18:43,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:18:43,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-09-29 21:18:43,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965250392] [2022-09-29 21:18:43,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:18:43,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-29 21:18:43,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:18:43,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-29 21:18:43,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-09-29 21:18:43,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:43,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:18:43,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 31.133333333333333) internal successors, (467), 15 states have internal predecessors, (467), 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) [2022-09-29 21:18:43,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:18:43,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:18:43,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:19:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:19:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:19:25,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:19:25,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-29 21:19:25,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:19:25,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:19:25,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:19:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash 852788247, now seen corresponding path program 2 times [2022-09-29 21:19:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:19:25,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948098090] [2022-09-29 21:19:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:19:25,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:19:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:19:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-09-29 21:19:26,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:19:26,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948098090] [2022-09-29 21:19:26,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948098090] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:19:26,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511924194] [2022-09-29 21:19:26,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 21:19:26,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:19:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:19:26,316 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:19:26,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-29 21:19:26,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 21:19:26,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 21:19:26,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 35 conjunts are in the unsatisfiable core [2022-09-29 21:19:26,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:19:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-09-29 21:19:27,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 21:19:27,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511924194] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:19:27,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 21:19:27,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2022-09-29 21:19:27,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547946225] [2022-09-29 21:19:27,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:19:27,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-29 21:19:27,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:19:27,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-29 21:19:27,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-09-29 21:19:27,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:19:27,019 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:19:27,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 36.90909090909091) internal successors, (406), 12 states have internal predecessors, (406), 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) [2022-09-29 21:19:27,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:19:27,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:19:27,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:19:27,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:20:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:20:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:20:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:20:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-29 21:20:33,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-29 21:20:33,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:20:33,608 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:20:33,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:20:33,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1288093253, now seen corresponding path program 1 times [2022-09-29 21:20:33,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:20:33,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090424993] [2022-09-29 21:20:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:20:33,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:20:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:20:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-09-29 21:20:33,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:20:33,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090424993] [2022-09-29 21:20:33,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090424993] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:20:33,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989866739] [2022-09-29 21:20:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:20:33,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:20:33,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:20:33,826 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 21:20:33,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-29 21:20:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:20:34,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-29 21:20:34,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:20:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-09-29 21:20:34,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:20:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-09-29 21:20:34,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989866739] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:20:34,678 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:20:34,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-09-29 21:20:34,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502037939] [2022-09-29 21:20:34,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:20:34,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-29 21:20:34,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:20:34,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-29 21:20:34,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-09-29 21:20:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:20:34,682 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:20:34,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 25.90909090909091) internal successors, (570), 22 states have internal predecessors, (570), 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) [2022-09-29 21:20:34,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:20:34,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:20:34,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:20:34,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-29 21:20:34,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:21:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:21:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:21:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:21:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-29 21:21:46,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:21:46,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-29 21:21:46,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:21:46,803 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:21:46,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:21:46,804 INFO L85 PathProgramCache]: Analyzing trace with hash -922096325, now seen corresponding path program 2 times [2022-09-29 21:21:46,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:21:46,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543697574] [2022-09-29 21:21:46,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:21:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:21:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:21:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-09-29 21:21:47,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:21:47,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543697574] [2022-09-29 21:21:47,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543697574] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:21:47,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:21:47,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-29 21:21:47,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143568181] [2022-09-29 21:21:47,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:21:47,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 21:21:47,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:21:47,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 21:21:47,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-29 21:21:47,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:21:47,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:21:47,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.14285714285714) internal successors, (519), 7 states have internal predecessors, (519), 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) [2022-09-29 21:21:47,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:21:47,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:21:47,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:21:47,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-29 21:21:47,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:21:47,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:22:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:22:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:22:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:22:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-29 21:22:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:22:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 21:22:54,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-29 21:22:54,627 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONASSERT === [thread2Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:22:54,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:22:54,629 INFO L85 PathProgramCache]: Analyzing trace with hash -678582797, now seen corresponding path program 1 times [2022-09-29 21:22:54,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:22:54,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703474670] [2022-09-29 21:22:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:22:54,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:22:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:22:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-09-29 21:22:54,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:22:54,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703474670] [2022-09-29 21:22:54,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703474670] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:22:54,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:22:54,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 21:22:54,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144367860] [2022-09-29 21:22:54,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:22:54,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 21:22:54,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:22:54,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 21:22:54,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 21:22:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:22:54,833 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:22:54,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 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) [2022-09-29 21:22:54,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:22:54,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 21:22:54,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 21:22:54,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-09-29 21:22:54,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 21:22:54,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 21:22:54,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.