/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk12/ring_1w1r-1.line307.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-21 10:08:52,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-21 10:08:52,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-21 10:08:52,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-21 10:08:52,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-21 10:08:52,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-21 10:08:52,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-21 10:08:52,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-21 10:08:52,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-21 10:08:52,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-21 10:08:52,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-21 10:08:52,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-21 10:08:52,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-21 10:08:52,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-21 10:08:52,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-21 10:08:52,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-21 10:08:52,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-21 10:08:52,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-21 10:08:52,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-21 10:08:52,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-21 10:08:52,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-21 10:08:52,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-21 10:08:52,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-21 10:08:52,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-21 10:08:52,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-21 10:08:52,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-21 10:08:52,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-21 10:08:52,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-21 10:08:52,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-21 10:08:52,212 INFO L138 SettingsManager]: * Use SBE=true [2022-10-21 10:08:52,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-21 10:08:52,212 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-21 10:08:52,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-21 10:08:52,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-21 10:08:52,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-21 10:08:52,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-21 10:08:52,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-21 10:08:52,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 10:08:52,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-21 10:08:52,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-21 10:08:52,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-21 10:08:52,215 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-21 10:08:52,216 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-21 10:08:52,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-21 10:08:52,216 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-21 10:08:52,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-21 10:08:52,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-21 10:08:52,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-21 10:08:52,593 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-21 10:08:52,594 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-21 10:08:52,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk12/ring_1w1r-1.line307.bpl [2022-10-21 10:08:52,595 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk12/ring_1w1r-1.line307.bpl' [2022-10-21 10:08:52,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-21 10:08:52,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-21 10:08:52,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-21 10:08:52,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-21 10:08:52,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-21 10:08:52,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,700 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-21 10:08:52,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-21 10:08:52,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-21 10:08:52,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-21 10:08:52,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-21 10:08:52,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-21 10:08:52,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-21 10:08:52,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-21 10:08:52,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-21 10:08:52,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/1) ... [2022-10-21 10:08:52,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 10:08:52,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 10:08:52,789 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) [2022-10-21 10:08:52,797 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 [2022-10-21 10:08:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-10-21 10:08:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-10-21 10:08:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-21 10:08:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-21 10:08:52,823 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-21 10:08:52,927 INFO L234 CfgBuilder]: Building ICFG [2022-10-21 10:08:52,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-21 10:08:53,349 INFO L275 CfgBuilder]: Performing block encoding [2022-10-21 10:08:53,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-21 10:08:53,364 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-21 10:08:53,366 INFO L202 PluginConnector]: Adding new model ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:08:53 BoogieIcfgContainer [2022-10-21 10:08:53,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-21 10:08:53,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-21 10:08:53,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-21 10:08:53,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-21 10:08:53,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 10:08:52" (1/2) ... [2022-10-21 10:08:53,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de8ece and model type ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:08:53, skipping insertion in model container [2022-10-21 10:08:53,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:08:53" (2/2) ... [2022-10-21 10:08:53,372 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.line307.bpl [2022-10-21 10:08:53,378 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-21 10:08:53,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-21 10:08:53,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-21 10:08:53,385 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-21 10:08:53,494 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-21 10:08:53,548 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-21 10:08:53,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 10:08:53,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 10:08:53,550 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) [2022-10-21 10:08:53,570 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 [2022-10-21 10:08:53,607 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 10:08:53,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_nowait_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-21 10:08:53,623 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;@5c903ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 10:08:53,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 10:08:53,625 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-21 10:08:53,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location reader_nowait_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-21 10:08:53,637 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 10:08:53,639 INFO L307 ceAbstractionStarter]: Result for error location reader_nowait_fnErr0ASSERT_VIOLATIONASSERT was SAFE (1/3) [2022-10-21 10:08:53,646 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-21 10:08:53,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 10:08:53,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 10:08:53,655 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) [2022-10-21 10:08:53,665 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 [2022-10-21 10:08:53,670 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 10:08:53,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-21 10:08:53,672 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;@5c903ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 10:08:53,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 10:08:53,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-21 10:08:53,709 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 10:08:53,709 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/3) [2022-10-21 10:08:53,713 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-21 10:08:53,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 10:08:53,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 10:08:53,721 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) [2022-10-21 10:08:53,722 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 [2022-10-21 10:08:53,726 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 10:08:53,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_nowait_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-21 10:08:53,727 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;@5c903ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 10:08:53,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 10:08:53,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash 860125928, now seen corresponding path program 1 times [2022-10-21 10:08:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:53,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974582953] [2022-10-21 10:08:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:53,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:54,095 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974582953] [2022-10-21 10:08:54,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974582953] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 10:08:54,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 10:08:54,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-21 10:08:54,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146601739] [2022-10-21 10:08:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 10:08:54,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-21 10:08:54,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:54,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-21 10:08:54,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-21 10:08:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,133 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:54,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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) [2022-10-21 10:08:54,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-21 10:08:54,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:54,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:54,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1206413873, now seen corresponding path program 1 times [2022-10-21 10:08:54,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:54,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120856728] [2022-10-21 10:08:54,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:54,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:54,531 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:54,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120856728] [2022-10-21 10:08:54,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120856728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 10:08:54,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 10:08:54,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-21 10:08:54,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314432120] [2022-10-21 10:08:54,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 10:08:54,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-21 10:08:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:54,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-21 10:08:54,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-21 10:08:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:54,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2022-10-21 10:08:54,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-21 10:08:54,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1966774377, now seen corresponding path program 1 times [2022-10-21 10:08:54,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:54,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599232749] [2022-10-21 10:08:54,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:54,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:54,764 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:54,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599232749] [2022-10-21 10:08:54,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599232749] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:54,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:54,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2022-10-21 10:08:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933427152] [2022-10-21 10:08:54,765 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:54,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 10:08:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:54,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 10:08:54,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-21 10:08:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:54,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2022-10-21 10:08:54,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:54,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:54,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:54,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-21 10:08:54,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:54,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash -327090703, now seen corresponding path program 2 times [2022-10-21 10:08:54,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:54,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297390679] [2022-10-21 10:08:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:55,098 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:55,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297390679] [2022-10-21 10:08:55,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297390679] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:55,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:55,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-21 10:08:55,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001308835] [2022-10-21 10:08:55,099 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:55,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-21 10:08:55,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:55,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-21 10:08:55,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-21 10:08:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,105 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:55,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 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) [2022-10-21 10:08:55,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:55,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:55,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:55,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:55,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:55,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-21 10:08:55,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash -209605673, now seen corresponding path program 3 times [2022-10-21 10:08:55,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:55,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110460658] [2022-10-21 10:08:55,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:55,537 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:55,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110460658] [2022-10-21 10:08:55,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110460658] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:55,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:55,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2022-10-21 10:08:55,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052203374] [2022-10-21 10:08:55,538 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:55,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-21 10:08:55,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:55,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-21 10:08:55,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-10-21 10:08:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,540 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:55,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 19.6) internal successors, (294), 15 states have internal predecessors, (294), 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) [2022-10-21 10:08:55,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:55,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:55,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:55,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:55,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-21 10:08:55,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:55,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:55,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1439097265, now seen corresponding path program 4 times [2022-10-21 10:08:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:55,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259620096] [2022-10-21 10:08:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:56,167 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:56,167 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:56,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259620096] [2022-10-21 10:08:56,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259620096] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:56,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:56,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2022-10-21 10:08:56,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466772075] [2022-10-21 10:08:56,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:56,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-21 10:08:56,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:56,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-21 10:08:56,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-10-21 10:08:56,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:56,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:56,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.263157894736842) internal successors, (347), 19 states have internal predecessors, (347), 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) [2022-10-21 10:08:56,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:56,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:56,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:56,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:56,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:56,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:56,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-21 10:08:56,454 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:56,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:56,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1094885399, now seen corresponding path program 5 times [2022-10-21 10:08:56,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:56,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424863837] [2022-10-21 10:08:56,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:56,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 0 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:56,808 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:56,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424863837] [2022-10-21 10:08:56,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424863837] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:56,809 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:56,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-10-21 10:08:56,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573876981] [2022-10-21 10:08:56,809 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:56,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-21 10:08:56,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:56,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-21 10:08:56,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2022-10-21 10:08:56,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:56,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:56,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 17.391304347826086) internal successors, (400), 23 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:56,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:08:57,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-21 10:08:57,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:57,150 INFO L85 PathProgramCache]: Analyzing trace with hash -610921103, now seen corresponding path program 6 times [2022-10-21 10:08:57,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:57,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889783041] [2022-10-21 10:08:57,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:57,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:57,541 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:57,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889783041] [2022-10-21 10:08:57,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889783041] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:57,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:57,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-10-21 10:08:57,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308276206] [2022-10-21 10:08:57,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:57,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-21 10:08:57,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:57,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-21 10:08:57,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2022-10-21 10:08:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:57,544 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:57,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 18.12) internal successors, (453), 25 states have internal predecessors, (453), 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) [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:08:57,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:08:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-21 10:08:57,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-21 10:08:57,966 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:57,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1303135319, now seen corresponding path program 7 times [2022-10-21 10:08:57,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:57,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493788859] [2022-10-21 10:08:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:57,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 10:08:58,406 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:58,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493788859] [2022-10-21 10:08:58,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493788859] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-21 10:08:58,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-21 10:08:58,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-10-21 10:08:58,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599820954] [2022-10-21 10:08:58,407 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-21 10:08:58,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-21 10:08:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:58,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-21 10:08:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2022-10-21 10:08:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:58,408 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:58,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 17.448275862068964) internal successors, (506), 29 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) [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-21 10:08:58,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-21 10:08:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-21 10:08:59,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-21 10:08:59,215 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONASSERT === [reader_nowait_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-21 10:08:59,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 10:08:59,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1657444657, now seen corresponding path program 8 times [2022-10-21 10:08:59,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 10:08:59,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844447875] [2022-10-21 10:08:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 10:08:59,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 10:08:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 10:08:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1492 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked. [2022-10-21 10:08:59,598 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 10:08:59,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844447875] [2022-10-21 10:08:59,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844447875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 10:08:59,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 10:08:59,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-21 10:08:59,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076937153] [2022-10-21 10:08:59,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 10:08:59,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-21 10:08:59,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 10:08:59,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-21 10:08:59,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-10-21 10:08:59,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:59,600 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 10:08:59,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 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) [2022-10-21 10:08:59,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:08:59,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:08:59,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:08:59,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:08:59,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:08:59,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:08:59,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:08:59,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-10-21 10:08:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-21 10:08:59,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:09:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 10:09:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-21 10:09:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-21 10:09:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 10:09:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-21 10:09:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-21 10:09:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-21 10:09:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-21 10:09:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-21 10:09:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-21 10:09:01,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location reader_nowait_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-21 10:09:01,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-21 10:09:01,658 INFO L444 BasicCegarLoop]: Path program histogram: [8, 1, 1] [2022-10-21 10:09:01,658 INFO L307 ceAbstractionStarter]: Result for error location reader_nowait_fnErr0ASSERT_VIOLATIONASSERT was SAFE (3/3) [2022-10-21 10:09:01,660 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-21 10:09:01,660 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-21 10:09:01,663 INFO L202 PluginConnector]: Adding new model ring_1w1r-1.line307.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:09:01 BasicIcfg [2022-10-21 10:09:01,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-21 10:09:01,664 INFO L158 Benchmark]: Toolchain (without parser) took 9006.98ms. Allocated memory was 190.8MB in the beginning and 548.4MB in the end (delta: 357.6MB). Free memory was 168.3MB in the beginning and 372.1MB in the end (delta: -203.9MB). Peak memory consumption was 357.6MB. Max. memory is 8.0GB. [2022-10-21 10:09:01,664 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.38ms. Allocated memory is still 190.8MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-21 10:09:01,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.91ms. Allocated memory is still 190.8MB. Free memory was 168.1MB in the beginning and 166.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-21 10:09:01,664 INFO L158 Benchmark]: Boogie Preprocessor took 47.33ms. Allocated memory is still 190.8MB. Free memory was 166.5MB in the beginning and 164.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-21 10:09:01,665 INFO L158 Benchmark]: RCFGBuilder took 614.74ms. Allocated memory is still 190.8MB. Free memory was 164.5MB in the beginning and 141.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-10-21 10:09:01,665 INFO L158 Benchmark]: TraceAbstraction took 8296.10ms. Allocated memory was 190.8MB in the beginning and 548.4MB in the end (delta: 357.6MB). Free memory was 140.4MB in the beginning and 372.1MB in the end (delta: -231.8MB). Peak memory consumption was 329.3MB. Max. memory is 8.0GB. [2022-10-21 10:09:01,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.38ms. Allocated memory is still 190.8MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.91ms. Allocated memory is still 190.8MB. Free memory was 168.1MB in the beginning and 166.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.33ms. Allocated memory is still 190.8MB. Free memory was 166.5MB in the beginning and 164.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 614.74ms. Allocated memory is still 190.8MB. Free memory was 164.5MB in the beginning and 141.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 8296.10ms. Allocated memory was 190.8MB in the beginning and 548.4MB in the end (delta: 357.6MB). Free memory was 140.4MB in the beginning and 372.1MB in the end (delta: -231.8MB). Peak memory consumption was 329.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 31, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 125, positive: 116, positive conditional: 116, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 13, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 280, positive: 262, positive conditional: 262, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 262, Positive conditional cache size: 0, Positive unconditional cache size: 262, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 31, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 435, positive: 408, positive conditional: 408, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 262, Positive conditional cache size: 0, Positive unconditional cache size: 262, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 58, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 590, positive: 554, positive conditional: 554, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 262, Positive conditional cache size: 0, Positive unconditional cache size: 262, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 94, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1026, positive: 970, positive conditional: 970, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 451, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 150, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1462, positive: 1386, positive conditional: 1386, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 451, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 226, Statistics for Abstraction: - StatisticsResult: Independence relation #8 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1898, positive: 1802, positive conditional: 1802, positive unconditional: 0, negative: 96, negative conditional: 96, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 451, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 322, Statistics for Abstraction: - StatisticsResult: Independence relation #9 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2334, positive: 2218, positive conditional: 2218, positive unconditional: 0, negative: 116, negative conditional: 116, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 451, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 438, Statistics for Abstraction: - StatisticsResult: Independence relation #10 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2770, positive: 2634, positive conditional: 2634, positive unconditional: 0, negative: 136, negative conditional: 136, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 451, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 574, Statistics for Abstraction: - StatisticsResult: Independence relation #11 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 56940, positive: 53812, positive conditional: 53812, positive unconditional: 0, negative: 3128, negative conditional: 3128, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 67891, positive: 64189, positive conditional: 64189, positive unconditional: 0, negative: 3702, negative conditional: 3702, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64344, positive: 64189, positive conditional: 0, positive unconditional: 64189, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7450, positive: 7433, positive conditional: 0, positive unconditional: 7433, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64344, positive: 56756, positive conditional: 0, positive unconditional: 56756, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 7450, unknown conditional: 0, unknown unconditional: 7450] , Statistics on independence cache: Total cache size (in pairs): 7450, Positive cache size: 7433, Positive conditional cache size: 0, Positive unconditional cache size: 7433, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Independence queries for same thread: 3547, Statistics for Abstraction: - PositiveResult [Line: 307]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: reader_nowait_fnErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 3 procedures, 409 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: reader_nowait_fnErr0ASSERT_VIOLATIONASSERT with 2 thread instances CFG has 3 procedures, 409 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 4.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 154, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 3259 NumberOfCodeBlocks, 3259 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3249 ConstructedInterpolants, 0 QuantifiedInterpolants, 10991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 1492/4488 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 3 procedures, 409 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-21 10:09:01,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2022-10-21 10:09:01,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2022-10-21 10:09:02,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-10-21 10:09:02,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...