/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/chunk26/circular_buffer_bad.line338.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 14:24:07,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 14:24:07,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 14:24:07,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-24 14:24:07,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 14:24:07,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 14:24:07,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 14:24:07,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 14:24:07,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 14:24:07,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 14:24:07,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 14:24:07,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 14:24:07,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 14:24:07,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 14:24:07,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 14:24:07,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 14:24:07,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-24 14:24:07,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 14:24:07,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 14:24:07,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 14:24:07,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 14:24:07,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 14:24:07,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 14:24:07,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 14:24:07,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 14:24:07,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 14:24:07,219 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 14:24:07,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 14:24:07,219 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 14:24:07,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 14:24:07,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 14:24:07,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:24:07,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 14:24:07,221 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 14:24:07,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 14:24:07,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 14:24:07,222 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 14:24:07,222 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 14:24:07,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 14:24:07,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 14:24:07,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 14:24:07,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 14:24:07,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 14:24:07,533 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 14:24:07,542 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 14:24:07,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/circular_buffer_bad.line338.bpl [2022-10-24 14:24:07,544 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/circular_buffer_bad.line338.bpl' [2022-10-24 14:24:07,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 14:24:07,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 14:24:07,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 14:24:07,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 14:24:07,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 14:24:07,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,633 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 14:24:07,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 14:24:07,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 14:24:07,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 14:24:07,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 14:24:07,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 14:24:07,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 14:24:07,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 14:24:07,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 14:24:07,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/1) ... [2022-10-24 14:24:07,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:24:07,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:07,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-24 14:24:07,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-24 14:24:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 14:24:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 14:24:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-10-24 14:24:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-10-24 14:24:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-10-24 14:24:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-10-24 14:24:07,738 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 14:24:07,907 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 14:24:07,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 14:24:08,295 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 14:24:08,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 14:24:08,306 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-24 14:24:08,311 INFO L202 PluginConnector]: Adding new model circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:08 BoogieIcfgContainer [2022-10-24 14:24:08,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 14:24:08,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 14:24:08,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 14:24:08,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 14:24:08,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:24:07" (1/2) ... [2022-10-24 14:24:08,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef0f129 and model type circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:08, skipping insertion in model container [2022-10-24 14:24:08,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:08" (2/2) ... [2022-10-24 14:24:08,323 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.line338.bpl [2022-10-24 14:24:08,328 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 14:24:08,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 14:24:08,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 14:24:08,334 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 14:24:08,436 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-24 14:24:08,483 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:24:08,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:24:08,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:08,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 14:24:08,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-24 14:24:08,518 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:24:08,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 14:24:08,530 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;@2e4e9a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:24:08,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:24:08,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 14:24:08,825 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 14:24:08,827 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-24 14:24:08,831 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:24:08,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:24:08,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:08,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 14:24:08,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-24 14:24:08,838 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:24:08,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 14:24:08,839 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;@2e4e9a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:24:08,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:24:08,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 14:24:08,845 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 14:24:08,851 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-24 14:24:08,855 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:24:08,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:24:08,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:08,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 14:24:08,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-24 14:24:08,869 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:24:08,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 14:24:08,870 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;@2e4e9a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:24:08,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:24:08,871 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-24 14:24:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-24 14:24:08,872 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 14:24:08,872 INFO L307 ceAbstractionStarter]: Result for error location t2Err0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-24 14:24:08,875 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:24:08,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:24:08,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:08,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 14:24:08,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-24 14:24:08,882 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:24:08,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 14:24:08,883 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;@2e4e9a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:24:08,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:24:08,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:24:08,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:24:08,955 INFO L85 PathProgramCache]: Analyzing trace with hash 343655029, now seen corresponding path program 1 times [2022-10-24 14:24:08,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:24:08,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424869211] [2022-10-24 14:24:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:24:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:24:09,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 14:24:09,350 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:24:09,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424869211] [2022-10-24 14:24:09,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424869211] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:24:09,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:24:09,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-24 14:24:09,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651666944] [2022-10-24 14:24:09,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:24:09,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-24 14:24:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:24:09,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-24 14:24:09,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-24 14:24:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:09,384 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:24:09,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 14:24:09,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:09,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:09,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 14:24:09,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:24:09,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:24:09,619 INFO L85 PathProgramCache]: Analyzing trace with hash -956893917, now seen corresponding path program 1 times [2022-10-24 14:24:09,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:24:09,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671670525] [2022-10-24 14:24:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:24:09,690 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-24 14:24:09,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707598652] [2022-10-24 14:24:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:09,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:09,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:09,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-24 14:24:09,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-24 14:24:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:24:09,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-24 14:24:09,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-24 14:24:10,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-24 14:24:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 14:24:10,207 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:24:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671670525] [2022-10-24 14:24:10,207 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-24 14:24:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707598652] [2022-10-24 14:24:10,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707598652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:24:10,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:24:10,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-24 14:24:10,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016739660] [2022-10-24 14:24:10,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:24:10,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 14:24:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:24:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 14:24:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-24 14:24:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:10,210 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:24:10,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 14:24:10,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:10,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:10,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-24 14:24:10,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:10,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:24:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:24:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1520267446, now seen corresponding path program 1 times [2022-10-24 14:24:10,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:24:10,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146978117] [2022-10-24 14:24:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:10,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:24:10,910 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-24 14:24:10,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116235132] [2022-10-24 14:24:10,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:10,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:10,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:10,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-24 14:24:10,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-24 14:24:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:24:11,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-24 14:24:11,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-24 14:24:11,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-24 14:24:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-24 14:24:11,233 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:24:11,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146978117] [2022-10-24 14:24:11,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-24 14:24:11,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116235132] [2022-10-24 14:24:11,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116235132] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:24:11,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:24:11,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-24 14:24:11,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228775300] [2022-10-24 14:24:11,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:24:11,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 14:24:11,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:24:11,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 14:24:11,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-24 14:24:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:11,235 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:24:11,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 14:24:11,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:11,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:11,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:11,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:11,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:11,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:11,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-24 14:24:11,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:11,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:24:11,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:24:11,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1462434533, now seen corresponding path program 2 times [2022-10-24 14:24:11,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:24:11,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103279269] [2022-10-24 14:24:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:24:11,785 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-24 14:24:11,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832219486] [2022-10-24 14:24:11,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-24 14:24:11,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:11,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:11,787 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-24 14:24:11,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-24 14:24:11,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-24 14:24:11,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-24 14:24:11,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-24 14:24:11,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-24 14:24:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-24 14:24:12,599 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:24:12,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103279269] [2022-10-24 14:24:12,600 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-24 14:24:12,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832219486] [2022-10-24 14:24:12,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832219486] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:24:12,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:24:12,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-24 14:24:12,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789485087] [2022-10-24 14:24:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:24:12,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-24 14:24:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:24:12,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-24 14:24:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-24 14:24:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:12,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:24:12,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 24.555555555555557) internal successors, (221), 10 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 14:24:12,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:12,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:12,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:12,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-24 14:24:13,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-24 14:24:13,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:13,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:24:13,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:24:13,328 INFO L85 PathProgramCache]: Analyzing trace with hash -102176440, now seen corresponding path program 1 times [2022-10-24 14:24:13,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:24:13,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063517974] [2022-10-24 14:24:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:13,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:24:13,357 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-24 14:24:13,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852977789] [2022-10-24 14:24:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:13,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:13,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:13,359 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-24 14:24:13,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-24 14:24:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:24:13,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 63 conjunts are in the unsatisfiable core [2022-10-24 14:24:13,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-24 14:24:13,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-10-24 14:24:13,762 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-24 14:24:13,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-24 14:24:13,868 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-24 14:24:13,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-24 14:24:14,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-10-24 14:24:14,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-10-24 14:24:14,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-10-24 14:24:14,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-10-24 14:24:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 76 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 14:24:15,075 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:24:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063517974] [2022-10-24 14:24:15,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-24 14:24:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852977789] [2022-10-24 14:24:15,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852977789] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:24:15,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:24:15,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-10-24 14:24:15,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765392887] [2022-10-24 14:24:15,076 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:24:15,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-24 14:24:15,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:24:15,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-24 14:24:15,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2022-10-24 14:24:15,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:15,078 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:24:15,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 9.0) internal successors, (315), 35 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 14:24:15,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:15,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:15,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:15,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-24 14:24:15,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-24 14:24:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-24 14:24:16,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-24 14:24:16,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:16,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:24:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:24:16,380 INFO L85 PathProgramCache]: Analyzing trace with hash 309633605, now seen corresponding path program 2 times [2022-10-24 14:24:16,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:24:16,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558859643] [2022-10-24 14:24:16,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:24:16,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:24:16,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-24 14:24:16,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362203756] [2022-10-24 14:24:16,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-24 14:24:16,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:16,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:24:16,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-24 14:24:16,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-24 14:24:16,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-24 14:24:16,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-24 14:24:16,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-24 14:24:16,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-24 14:24:17,185 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-10-24 14:24:17,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-10-24 14:24:17,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-24 14:24:17,431 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-10-24 14:24:17,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-10-24 14:24:17,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-24 14:24:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-24 14:24:19,016 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:24:19,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558859643] [2022-10-24 14:24:19,016 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-24 14:24:19,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362203756] [2022-10-24 14:24:19,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362203756] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:24:19,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:24:19,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-10-24 14:24:19,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106607082] [2022-10-24 14:24:19,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:24:19,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-24 14:24:19,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:24:19,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-24 14:24:19,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2022-10-24 14:24:19,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:19,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:24:19,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 9.961538461538462) internal successors, (259), 27 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-24 14:24:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-24 14:24:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-10-24 14:24:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:24:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:24:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-24 14:24:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:24:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-24 14:24:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-10-24 14:24:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-24 14:24:32,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-24 14:24:32,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-24 14:24:32,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-24 14:24:32,637 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2022-10-24 14:24:32,637 INFO L307 ceAbstractionStarter]: Result for error location t2Err0ASSERT_VIOLATIONASSERT was SAFE (4/4) [2022-10-24 14:24:32,639 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-24 14:24:32,639 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-24 14:24:32,642 INFO L202 PluginConnector]: Adding new model circular_buffer_bad.line338.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:24:32 BasicIcfg [2022-10-24 14:24:32,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-24 14:24:32,643 INFO L158 Benchmark]: Toolchain (without parser) took 25057.88ms. Allocated memory was 175.1MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 151.8MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-10-24 14:24:32,643 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 175.1MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-24 14:24:32,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.16ms. Allocated memory is still 175.1MB. Free memory was 151.7MB in the beginning and 150.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-24 14:24:32,643 INFO L158 Benchmark]: Boogie Preprocessor took 39.94ms. Allocated memory is still 175.1MB. Free memory was 150.0MB in the beginning and 148.1MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-24 14:24:32,643 INFO L158 Benchmark]: RCFGBuilder took 635.81ms. Allocated memory is still 175.1MB. Free memory was 148.1MB in the beginning and 146.4MB in the end (delta: 1.6MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-10-24 14:24:32,644 INFO L158 Benchmark]: TraceAbstraction took 24326.15ms. Allocated memory was 175.1MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 145.6MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-10-24 14:24:32,644 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 0.14ms. Allocated memory is still 175.1MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.16ms. Allocated memory is still 175.1MB. Free memory was 151.7MB in the beginning and 150.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.94ms. Allocated memory is still 175.1MB. Free memory was 150.0MB in the beginning and 148.1MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 635.81ms. Allocated memory is still 175.1MB. Free memory was 148.1MB in the beginning and 146.4MB in the end (delta: 1.6MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * TraceAbstraction took 24326.15ms. Allocated memory was 175.1MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 145.6MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 772, positive: 692, positive conditional: 692, positive unconditional: 0, negative: 80, negative conditional: 80, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 772, positive: 692, positive conditional: 692, positive unconditional: 0, negative: 80, negative conditional: 80, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 694, positive: 692, positive conditional: 0, positive unconditional: 692, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 689, positive: 687, positive conditional: 0, positive unconditional: 687, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 694, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 689, unknown conditional: 0, unknown unconditional: 689] , Statistics on independence cache: Total cache size (in pairs): 689, Positive cache size: 687, Positive conditional cache size: 0, Positive unconditional cache size: 687, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 78, 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: 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: 106, positive: 101, positive conditional: 101, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 5, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 7116, positive: 6698, positive conditional: 6698, positive unconditional: 0, negative: 418, negative conditional: 418, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 941, Positive cache size: 937, Positive conditional cache size: 0, Positive unconditional cache size: 937, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Independence queries for same thread: 414, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 23292, positive: 22016, positive conditional: 22016, positive unconditional: 0, negative: 1276, negative conditional: 1276, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 1909, Positive cache size: 1900, Positive conditional cache size: 0, Positive unconditional cache size: 1900, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Independence queries for same thread: 1640, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 25182, positive: 23691, positive conditional: 23691, positive unconditional: 0, negative: 1491, negative conditional: 1491, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 1924, Positive cache size: 1914, Positive conditional cache size: 0, Positive unconditional cache size: 1914, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Independence queries for same thread: 3079, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 34576, positive: 32670, positive conditional: 32670, positive unconditional: 0, negative: 1906, negative conditional: 1906, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 2242, Positive cache size: 2230, Positive conditional cache size: 0, Positive unconditional cache size: 2230, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Independence queries for same thread: 4921, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 12471, positive: 11681, positive conditional: 11681, positive unconditional: 0, negative: 790, negative conditional: 790, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 2851, Positive cache size: 2838, Positive conditional cache size: 0, Positive unconditional cache size: 2838, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Independence queries for same thread: 5662, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 991902, positive: 927286, positive conditional: 927286, positive unconditional: 0, negative: 64616, negative conditional: 64616, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1094645, positive: 1024143, positive conditional: 1024143, positive unconditional: 0, negative: 70502, negative conditional: 70502, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1029720, positive: 1024143, positive conditional: 0, positive unconditional: 1024143, negative: 5577, negative conditional: 0, negative unconditional: 5577, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6343, positive: 6319, positive conditional: 0, positive unconditional: 6319, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029720, positive: 1017824, positive conditional: 0, positive unconditional: 1017824, negative: 5553, negative conditional: 0, negative unconditional: 5553, unknown: 6343, unknown conditional: 0, unknown unconditional: 6343] , Statistics on independence cache: Total cache size (in pairs): 6343, Positive cache size: 6319, Positive conditional cache size: 0, Positive unconditional cache size: 6319, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Independence queries for same thread: 64925, Statistics for Abstraction: - PositiveResult [Line: 338]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 388 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.3s, 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 thread instance sufficiency: ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 388 locations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: t2Err0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 5 procedures, 388 locations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: t2Err0ASSERT_VIOLATIONASSERT with 2 thread instances CFG has 5 procedures, 388 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 16.0s, 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: 125, 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, 0.6s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1531 NumberOfCodeBlocks, 1368 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1525 ConstructedInterpolants, 33 QuantifiedInterpolants, 13148 SizeOfPredicates, 83 NumberOfNonLiveVariables, 2814 ConjunctsInSsa, 174 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 270/294 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-24 14:24:32,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Ended with exit code 0 [2022-10-24 14:24:32,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2022-10-24 14:24:33,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2022-10-24 14:24:33,284 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 [2022-10-24 14:24:33,492 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...