/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line909.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:42:09,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:42:09,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:42:09,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-04 02:42:09,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:42:09,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:42:09,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:42:09,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:42:09,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:42:09,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:42:09,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:42:09,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:42:09,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:42:09,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:42:09,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:42:09,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:42:09,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:42:09,171 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:42:09,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:42:09,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:42:09,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:42:09,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:42:09,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:42:09,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:42:09,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:42:09,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:42:09,175 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:42:09,176 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:42:09,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:42:09,176 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:42:09,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:42:09,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:42:09,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:42:09,409 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:42:09,424 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:42:09,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line909.bpl [2022-10-04 02:42:09,426 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line909.bpl' [2022-10-04 02:42:09,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:42:09,494 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:42:09,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:42:09,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:42:09,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:42:09,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:42:09,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:42:09,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:42:09,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:42:09,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/1) ... [2022-10-04 02:42:09,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:42:09,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:42:09,626 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) [2022-10-04 02:42:09,629 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 [2022-10-04 02:42:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-04 02:42:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-04 02:42:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-04 02:42:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-04 02:42:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:42:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:42:09,656 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 02:42:09,811 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:42:09,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:42:10,325 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:42:10,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:42:10,344 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-04 02:42:10,347 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:42:10 BoogieIcfgContainer [2022-10-04 02:42:10,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:42:10,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:42:10,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:42:10,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:42:10,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:42:09" (1/2) ... [2022-10-04 02:42:10,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42880845 and model type ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:42:10, skipping insertion in model container [2022-10-04 02:42:10,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:42:10" (2/2) ... [2022-10-04 02:42:10,362 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line909.bpl [2022-10-04 02:42:10,370 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:42:10,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:42:10,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:42:10,377 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:42:10,529 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 02:42:10,584 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:42:10,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:42:10,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:42:10,587 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) [2022-10-04 02:42:10,588 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 [2022-10-04 02:42:10,613 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:42:10,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:42:10,629 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;@2811c0fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:42:10,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:42:10,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:42:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:42:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1533622953, now seen corresponding path program 1 times [2022-10-04 02:42:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:42:10,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940384481] [2022-10-04 02:42:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:42:10,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:42:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:42:11,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:42:11,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:42:11,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940384481] [2022-10-04 02:42:11,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940384481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:42:11,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:42:11,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:42:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173863016] [2022-10-04 02:42:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:42:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:42:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:42:11,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:42:11,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:42:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:11,161 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:42:11,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.0) internal successors, (194), 2 states have internal predecessors, (194), 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) [2022-10-04 02:42:11,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:11,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:42:11,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:42:11,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:42:11,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1052543167, now seen corresponding path program 1 times [2022-10-04 02:42:11,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:42:11,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517415634] [2022-10-04 02:42:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:42:11,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:42:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:42:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:42:11,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:42:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517415634] [2022-10-04 02:42:11,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517415634] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:42:11,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:42:11,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-10-04 02:42:11,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243230033] [2022-10-04 02:42:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:42:11,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-04 02:42:11,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:42:11,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-04 02:42:11,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-10-04 02:42:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:11,830 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:42:11,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.25) internal successors, (212), 17 states have internal predecessors, (212), 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) [2022-10-04 02:42:11,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:11,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:42:23,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:42:23,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:42:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:42:23,986 INFO L85 PathProgramCache]: Analyzing trace with hash -61668282, now seen corresponding path program 1 times [2022-10-04 02:42:23,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:42:23,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529327791] [2022-10-04 02:42:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:42:23,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:42:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:42:24,119 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:42:24,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:42:24,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529327791] [2022-10-04 02:42:24,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529327791] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:42:24,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:42:24,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 02:42:24,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719739089] [2022-10-04 02:42:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:42:24,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 02:42:24,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:42:24,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 02:42:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 02:42:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:24,124 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:42:24,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-10-04 02:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:42:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:42:34,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 02:42:34,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:42:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:42:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash -575498979, now seen corresponding path program 1 times [2022-10-04 02:42:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:42:34,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558957010] [2022-10-04 02:42:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:42:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:42:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:42:35,108 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:42:35,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:42:35,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558957010] [2022-10-04 02:42:35,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558957010] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:42:35,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978683153] [2022-10-04 02:42:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:42:35,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:42:35,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:42:35,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:42:35,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-04 02:42:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:42:35,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 58 conjunts are in the unsatisfiable core [2022-10-04 02:42:35,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:42:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:42:36,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:42:36,989 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 02:42:36,989 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 22 treesize of output 26 [2022-10-04 02:42:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:42:38,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978683153] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:42:38,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:42:38,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 16] total 49 [2022-10-04 02:42:38,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312212122] [2022-10-04 02:42:38,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:42:38,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-04 02:42:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:42:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-04 02:42:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=2296, Unknown=0, NotChecked=0, Total=2450 [2022-10-04 02:42:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:38,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:42:38,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 17.918367346938776) internal successors, (878), 50 states have internal predecessors, (878), 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) [2022-10-04 02:42:38,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:42:38,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:42:38,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:42:38,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:47:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:47:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:47:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:47:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-10-04 02:47:18,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-04 02:47:18,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-04 02:47:18,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:47:18,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:47:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash -987973786, now seen corresponding path program 1 times [2022-10-04 02:47:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:47:18,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353219849] [2022-10-04 02:47:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:47:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:47:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:47:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:47:19,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:47:19,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353219849] [2022-10-04 02:47:19,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353219849] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:47:19,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869978789] [2022-10-04 02:47:19,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:47:19,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:47:19,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:47:19,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:47:19,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-04 02:47:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:47:19,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-04 02:47:19,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:47:20,849 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-04 02:47:20,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:47:20,948 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 02:47:20,949 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 22 treesize of output 26 [2022-10-04 02:47:21,421 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-04 02:47:21,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869978789] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:47:21,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:47:21,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 11] total 40 [2022-10-04 02:47:21,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387776584] [2022-10-04 02:47:21,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:47:21,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-04 02:47:21,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:47:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-04 02:47:21,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1498, Unknown=0, NotChecked=0, Total=1640 [2022-10-04 02:47:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:47:21,426 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:47:21,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 20.825) internal successors, (833), 41 states have internal predecessors, (833), 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) [2022-10-04 02:47:21,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:47:21,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-04 02:47:21,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:47:21,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-10-04 02:47:21,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-10-04 02:50:53,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-04 02:50:53,212 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:50:53,221 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:50:53,222 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:50:53,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:50:53,393 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-10-04 02:50:53,396 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:50:53,405 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-04 02:50:53,407 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/3) [2022-10-04 02:50:53,409 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-04 02:50:53,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-04 02:50:53,412 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line909.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 02:50:53 BasicIcfg [2022-10-04 02:50:53,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-04 02:50:53,413 INFO L158 Benchmark]: Toolchain (without parser) took 523918.88ms. Allocated memory was 185.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 136.0MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. [2022-10-04 02:50:53,414 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 185.6MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-04 02:50:53,414 INFO L158 Benchmark]: Boogie Preprocessor took 92.03ms. Allocated memory is still 185.6MB. Free memory was 136.0MB in the beginning and 132.1MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-10-04 02:50:53,414 INFO L158 Benchmark]: RCFGBuilder took 752.47ms. Allocated memory is still 185.6MB. Free memory was 132.1MB in the beginning and 129.3MB in the end (delta: 2.7MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. [2022-10-04 02:50:53,415 INFO L158 Benchmark]: TraceAbstraction took 523061.16ms. Allocated memory was 185.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 128.7MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. [2022-10-04 02:50:53,416 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 0.18ms. Allocated memory is still 185.6MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 92.03ms. Allocated memory is still 185.6MB. Free memory was 136.0MB in the beginning and 132.1MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 752.47ms. Allocated memory is still 185.6MB. Free memory was 132.1MB in the beginning and 129.3MB in the end (delta: 2.7MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. * TraceAbstraction took 523061.16ms. Allocated memory was 185.6MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 128.7MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 115, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15151761, positive: 14724976, positive conditional: 14724976, positive unconditional: 0, negative: 426785, negative conditional: 426785, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14769797, positive: 14724976, positive conditional: 0, positive unconditional: 14724976, negative: 44821, negative conditional: 0, negative unconditional: 44821, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41486, positive: 41338, positive conditional: 0, positive unconditional: 41338, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14769797, positive: 14683638, positive conditional: 0, positive unconditional: 14683638, negative: 44673, negative conditional: 0, negative unconditional: 44673, unknown: 41486, unknown conditional: 0, unknown unconditional: 41486] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 4, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 166, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15151761, positive: 14724976, positive conditional: 14724976, positive unconditional: 0, negative: 426785, negative conditional: 426785, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14769797, positive: 14724976, positive conditional: 0, positive unconditional: 14724976, negative: 44821, negative conditional: 0, negative unconditional: 44821, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41486, positive: 41338, positive conditional: 0, positive unconditional: 41338, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14769797, positive: 14683638, positive conditional: 0, positive unconditional: 14683638, negative: 44673, negative conditional: 0, negative unconditional: 44673, unknown: 41486, unknown conditional: 0, unknown unconditional: 41486] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 7, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 519005, positive: 505066, positive conditional: 505066, positive unconditional: 0, negative: 13939, negative conditional: 13939, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15151761, positive: 14724976, positive conditional: 14724976, positive unconditional: 0, negative: 426785, negative conditional: 426785, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14769797, positive: 14724976, positive conditional: 0, positive unconditional: 14724976, negative: 44821, negative conditional: 0, negative unconditional: 44821, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41486, positive: 41338, positive conditional: 0, positive unconditional: 41338, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14769797, positive: 14683638, positive conditional: 0, positive unconditional: 14683638, negative: 44673, negative conditional: 0, negative unconditional: 44673, unknown: 41486, unknown conditional: 0, unknown unconditional: 41486] , Statistics on independence cache: Total cache size (in pairs): 20742, Positive cache size: 20675, Positive conditional cache size: 0, Positive unconditional cache size: 20675, Negative cache size: 67, Negative conditional cache size: 0, Negative unconditional cache size: 67, Independence queries for same thread: 12779, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 875437, positive: 851619, positive conditional: 851619, positive unconditional: 0, negative: 23818, negative conditional: 23818, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15151761, positive: 14724976, positive conditional: 14724976, positive unconditional: 0, negative: 426785, negative conditional: 426785, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14769797, positive: 14724976, positive conditional: 0, positive unconditional: 14724976, negative: 44821, negative conditional: 0, negative unconditional: 44821, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41486, positive: 41338, positive conditional: 0, positive unconditional: 41338, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14769797, positive: 14683638, positive conditional: 0, positive unconditional: 14683638, negative: 44673, negative conditional: 0, negative unconditional: 44673, unknown: 41486, unknown conditional: 0, unknown unconditional: 41486] , Statistics on independence cache: Total cache size (in pairs): 21286, Positive cache size: 21219, Positive conditional cache size: 0, Positive unconditional cache size: 21219, Negative cache size: 67, Negative conditional cache size: 0, Negative unconditional cache size: 67, Independence queries for same thread: 34814, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 7310693, positive: 7102536, positive conditional: 7102536, positive unconditional: 0, negative: 208157, negative conditional: 208157, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15151761, positive: 14724976, positive conditional: 14724976, positive unconditional: 0, negative: 426785, negative conditional: 426785, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14769797, positive: 14724976, positive conditional: 0, positive unconditional: 14724976, negative: 44821, negative conditional: 0, negative unconditional: 44821, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41486, positive: 41338, positive conditional: 0, positive unconditional: 41338, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14769797, positive: 14683638, positive conditional: 0, positive unconditional: 14683638, negative: 44673, negative conditional: 0, negative unconditional: 44673, unknown: 41486, unknown conditional: 0, unknown unconditional: 41486] , Statistics on independence cache: Total cache size (in pairs): 41486, Positive cache size: 41338, Positive conditional cache size: 0, Positive unconditional cache size: 41338, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Independence queries for same thread: 220184, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 6446345, positive: 6265481, positive conditional: 6265481, positive unconditional: 0, negative: 180864, negative conditional: 180864, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15151761, positive: 14724976, positive conditional: 14724976, positive unconditional: 0, negative: 426785, negative conditional: 426785, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14769797, positive: 14724976, positive conditional: 0, positive unconditional: 14724976, negative: 44821, negative conditional: 0, negative unconditional: 44821, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41486, positive: 41338, positive conditional: 0, positive unconditional: 41338, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14769797, positive: 14683638, positive conditional: 0, positive unconditional: 14683638, negative: 44673, negative conditional: 0, negative unconditional: 44673, unknown: 41486, unknown conditional: 0, unknown unconditional: 41486] , Statistics on independence cache: Total cache size (in pairs): 41486, Positive cache size: 41338, Positive conditional cache size: 0, Positive unconditional cache size: 41338, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Independence queries for same thread: 381964, Statistics for Abstraction: - TimeoutResultAtElement [Line: 909]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 5 procedures, 850 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 522.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 515.1s, 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: 137, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 2241 NumberOfCodeBlocks, 2241 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2971 ConstructedInterpolants, 0 QuantifiedInterpolants, 14583 SizeOfPredicates, 59 NumberOfNonLiveVariables, 1728 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 95/273 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown