/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.line279.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 14:01:20,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 14:01:20,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 14:01:20,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 14:01:20,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 14:01:20,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 14:01:20,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 14:01:20,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 14:01:20,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 14:01:20,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 14:01:20,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 14:01:20,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 14:01:20,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 14:01:20,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 14:01:20,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 14:01:20,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 14:01:20,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 14:01:20,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 14:01:20,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 14:01:20,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 14:01:20,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 14:01:20,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 14:01:20,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 14:01:20,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 14:01:20,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-03 14:01:20,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-03 14:01:20,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-03 14:01:20,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-03 14:01:20,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-03 14:01:20,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-10-03 14:01:20,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 14:01:20,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 14:01:20,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 14:01:20,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 14:01:20,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 14:01:20,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 14:01:20,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 14:01:20,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 14:01:20,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 14:01:20,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 14:01:20,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 14:01:20,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 14:01:20,565 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 14:01:20,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 14:01:20,566 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 14:01:20,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 14:01:20,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 14:01:20,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 14:01:20,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 14:01:20,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 14:01:20,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 14:01:20,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 14:01:20,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:01:20,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 14:01:20,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 14:01:20,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 14:01:20,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 14:01:20,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 14:01:20,569 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 14:01:20,569 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 14:01:20,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 14:01:20,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 14:01:20,570 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 14:01:20,570 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 14:01:20,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 14:01:20,570 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 14:01:20,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 14:01:20,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 14:01:20,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 14:01:20,823 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 14:01:20,824 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 14:01:20,825 INFO L432 ainManager$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.line279.bpl [2022-10-03 14:01:20,825 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-trans.wvr.line279.bpl' [2022-10-03 14:01:20,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 14:01:20,895 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 14:01:20,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 14:01:20,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 14:01:20,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 14:01:20,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 14:01:20,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 14:01:20,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 14:01:20,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 14:01:20,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/1) ... [2022-10-03 14:01:20,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:01:20,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:01:21,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-03 14:01:21,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-03 14:01:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-03 14:01:21,096 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-03 14:01:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-03 14:01:21,107 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-03 14:01:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-03 14:01:21,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-03 14:01:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 14:01:21,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 14:01:21,109 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 14:01:21,339 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 14:01:21,340 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 14:01:22,306 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 14:01:22,326 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 14:01:22,326 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-03 14:01:22,329 INFO L202 PluginConnector]: Adding new model chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:01:22 BoogieIcfgContainer [2022-10-03 14:01:22,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 14:01:22,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 14:01:22,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 14:01:22,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 14:01:22,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:01:20" (1/2) ... [2022-10-03 14:01:22,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc861e4 and model type chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:01:22, skipping insertion in model container [2022-10-03 14:01:22,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-trans.wvr.line279.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:01:22" (2/2) ... [2022-10-03 14:01:22,343 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.line279.bpl [2022-10-03 14:01:22,351 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 14:01:22,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 14:01:22,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 14:01:22,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 14:01:22,482 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-03 14:01:22,527 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:01:22,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:01:22,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:01:22,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:01:22,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 14:01:22,632 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:01:22,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 14:01:22,643 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;@1f324216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:01:22,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:01:22,673 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-03 14:01:22,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 14:01:22,687 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 14:01:22,694 INFO L307 ceAbstractionStarter]: Result for error location thread1Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-03 14:01:22,727 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:01:22,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:01:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:01:22,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:01:22,752 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:01:22,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 14:01:22,753 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;@1f324216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:01:22,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:01:22,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-03 14:01:22,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 14:01:22,886 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 14:01:22,886 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-03 14:01:22,895 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:01:22,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:01:22,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:01:22,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:01:22,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-03 14:01:22,963 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:01:22,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 14:01:22,964 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;@1f324216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:01:22,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:01:54,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 14:01:54,802 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 14:01:54,803 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-03 14:01:54,811 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:01:54,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:01:54,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:01:54,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:01:54,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-03 14:01:54,821 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:01:54,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 14:01:54,822 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;@1f324216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:01:54,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:01:55,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 14:01:55,521 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 14:01:55,523 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-03 14:01:55,537 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:01:55,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:01:55,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:01:55,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:01:55,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-03 14:01:55,582 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:01:55,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 14:01:55,583 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;@1f324216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:01:55,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:01:55,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:01:55,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:01:55,679 INFO L85 PathProgramCache]: Analyzing trace with hash -456200663, now seen corresponding path program 1 times [2022-10-03 14:01:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:01:55,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763625590] [2022-10-03 14:01:55,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:01:55,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:01:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:01:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:01:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:01:56,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763625590] [2022-10-03 14:01:56,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763625590] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:01:56,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:01:56,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 14:01:56,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395745473] [2022-10-03 14:01:56,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:01:56,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 14:01:56,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:01:56,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 14:01:56,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 14:01:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:01:56,294 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:01:56,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 198.0) internal successors, (396), 2 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:01:56,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:04,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 14:03:04,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:03:04,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:03:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash 232432344, now seen corresponding path program 1 times [2022-10-03 14:03:04,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:03:04,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089854918] [2022-10-03 14:03:04,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:03:04,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:03:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:03:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:03:05,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:03:05,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089854918] [2022-10-03 14:03:05,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089854918] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:03:05,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:03:05,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 14:03:05,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519400616] [2022-10-03 14:03:05,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:03:05,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 14:03:05,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:03:05,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 14:03:05,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 14:03:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:05,005 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:03:05,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:03:05,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:05,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:03:43,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 14:03:43,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:03:43,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:03:43,327 INFO L85 PathProgramCache]: Analyzing trace with hash -298593520, now seen corresponding path program 1 times [2022-10-03 14:03:43,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:03:43,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493866262] [2022-10-03 14:03:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:03:43,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:03:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:03:43,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 14:03:43,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:03:43,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493866262] [2022-10-03 14:03:43,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493866262] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:03:43,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721196235] [2022-10-03 14:03:43,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:03:43,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:03:43,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:03:43,703 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:03:43,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-03 14:03:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:03:43,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-03 14:03:44,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:03:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 14:03:44,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:03:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 14:03:44,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721196235] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 14:03:44,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 14:03:44,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-03 14:03:44,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19475320] [2022-10-03 14:03:44,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 14:03:44,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-03 14:03:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:03:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-03 14:03:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-03 14:03:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:44,630 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:03:44,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 32.53333333333333) internal successors, (488), 15 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:03:44,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:03:44,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:03:44,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:04:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:04:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:04:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:04:29,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-03 14:04:29,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:04:29,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:04:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:04:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1056293680, now seen corresponding path program 2 times [2022-10-03 14:04:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:04:29,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581742323] [2022-10-03 14:04:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:04:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:04:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:04:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-03 14:04:30,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:04:30,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581742323] [2022-10-03 14:04:30,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581742323] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:04:30,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862267208] [2022-10-03 14:04:30,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 14:04:30,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:04:30,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:04:30,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:04:30,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-03 14:04:30,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 14:04:30,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 14:04:30,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-03 14:04:30,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:04:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-03 14:04:31,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 14:04:31,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862267208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:04:31,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 14:04:31,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2022-10-03 14:04:31,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120605607] [2022-10-03 14:04:31,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:04:31,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-03 14:04:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:04:31,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-03 14:04:31,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-10-03 14:04:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:04:31,505 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:04:31,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 38.81818181818182) internal successors, (427), 12 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:04:31,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:04:31,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:04:31,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:04:31,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:05:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:05:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:05:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:05:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:05:41,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-03 14:05:42,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:05:42,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:05:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:05:42,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1441897940, now seen corresponding path program 1 times [2022-10-03 14:05:42,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:05:42,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932730520] [2022-10-03 14:05:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:05:42,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:05:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:05:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-03 14:05:42,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:05:42,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932730520] [2022-10-03 14:05:42,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932730520] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:05:42,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572113073] [2022-10-03 14:05:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:05:42,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:05:42,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:05:42,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:05:42,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-03 14:05:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:05:42,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-03 14:05:42,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:05:42,926 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-03 14:05:42,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:05:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-03 14:05:43,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572113073] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 14:05:43,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 14:05:43,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-10-03 14:05:43,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369447544] [2022-10-03 14:05:43,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 14:05:43,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-03 14:05:43,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:05:43,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-03 14:05:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-10-03 14:05:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:05:43,401 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:05:43,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 25.318181818181817) internal successors, (557), 22 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:05:43,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:05:43,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:05:43,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:05:43,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:05:43,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:07:00,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:07:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:07:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:07:00,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:07:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:07:00,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-03 14:07:00,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:07:00,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:07:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:07:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash 916105108, now seen corresponding path program 2 times [2022-10-03 14:07:00,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:07:00,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994151278] [2022-10-03 14:07:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:07:00,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:07:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:07:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-10-03 14:07:00,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:07:00,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994151278] [2022-10-03 14:07:00,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994151278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:07:00,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:07:00,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-03 14:07:00,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115464653] [2022-10-03 14:07:00,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:07:00,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-03 14:07:00,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:07:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-03 14:07:00,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-03 14:07:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:07:00,477 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:07:00,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:07:00,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:07:00,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:07:00,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:07:00,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:07:00,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:07:00,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:08:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:08:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:08:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:08:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:08:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:08:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 14:08:11,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-03 14:08:11,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:08:11,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:08:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1601468308, now seen corresponding path program 1 times [2022-10-03 14:08:11,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:08:11,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109153315] [2022-10-03 14:08:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:08:11,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:08:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:08:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-10-03 14:08:11,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:08:11,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109153315] [2022-10-03 14:08:11,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109153315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:08:11,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:08:11,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 14:08:11,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059314279] [2022-10-03 14:08:11,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:08:11,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 14:08:11,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:08:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 14:08:11,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 14:08:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:08:11,996 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:08:11,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 14:08:11,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:09:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:09:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 14:09:26,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 14:09:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 14:09:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 14:09:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 14:09:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 14:09:26,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-03 14:09:26,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:09:26,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:09:26,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1701275564, now seen corresponding path program 1 times [2022-10-03 14:09:26,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:09:26,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236844580] [2022-10-03 14:09:26,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:09:26,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:09:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:09:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-03 14:09:27,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:09:27,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236844580] [2022-10-03 14:09:27,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236844580] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:09:27,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2404586] [2022-10-03 14:09:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:09:27,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:09:27,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:09:27,162 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:09:27,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process