/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.line920.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:43:30,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:43:30,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:43:30,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-04 02:43:30,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:43:30,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:43:30,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:43:30,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:43:30,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:43:30,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:43:30,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:43:30,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:43:30,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:43:30,430 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:43:30,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:43:30,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:43:30,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:43:30,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:43:30,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:43:30,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:43:30,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:43:30,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:43:30,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:43:30,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:43:30,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:43:30,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:43:30,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:43:30,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:43:30,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:43:30,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:43:30,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:43:30,689 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:43:30,691 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:43:30,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line920.bpl [2022-10-04 02:43:30,693 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-1.line920.bpl' [2022-10-04 02:43:30,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:43:30,749 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:43:30,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:43:30,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:43:30,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:43:30,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:43:30,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:43:30,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:43:30,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:43:30,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/1) ... [2022-10-04 02:43:30,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:43:30,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:43:30,873 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 02:43:30,881 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 02:43:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-04 02:43:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-04 02:43:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-04 02:43:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-04 02:43:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:43:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:43:30,907 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 02:43:31,036 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:43:31,037 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:43:31,575 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:43:31,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:43:31,592 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-04 02:43:31,594 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:43:31 BoogieIcfgContainer [2022-10-04 02:43:31,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:43:31,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:43:31,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:43:31,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:43:31,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:43:30" (1/2) ... [2022-10-04 02:43:31,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4436ddc7 and model type ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:43:31, skipping insertion in model container [2022-10-04 02:43:31,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:43:31" (2/2) ... [2022-10-04 02:43:31,602 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-1.line920.bpl [2022-10-04 02:43:31,608 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:43:31,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:43:31,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:43:31,615 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:43:31,758 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 02:43:31,823 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:43:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:43:31,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:43:31,827 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 02:43:31,845 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 02:43:31,871 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:43:31,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:43:31,893 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;@6ec34678, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:43:31,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:43:32,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:43:32,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:43:32,163 INFO L85 PathProgramCache]: Analyzing trace with hash 492685275, now seen corresponding path program 1 times [2022-10-04 02:43:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:43:32,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930104837] [2022-10-04 02:43:32,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:43:32,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:43:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:43:32,575 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 02:43:32,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:43:32,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930104837] [2022-10-04 02:43:32,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930104837] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:43:32,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:43:32,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:43:32,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336000324] [2022-10-04 02:43:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:43:32,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:43:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:43:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:43:32,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:43:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:32,623 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:43:32,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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 02:43:32,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:32,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:43:32,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:43:32,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:43:32,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1574863507, now seen corresponding path program 1 times [2022-10-04 02:43:32,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:43:32,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744540257] [2022-10-04 02:43:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:43:32,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:43:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:43:34,255 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 02:43:34,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:43:34,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744540257] [2022-10-04 02:43:34,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744540257] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:43:34,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:43:34,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-10-04 02:43:34,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632000807] [2022-10-04 02:43:34,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:43:34,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-04 02:43:34,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:43:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-04 02:43:34,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2022-10-04 02:43:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:34,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:43:34,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 5.972972972972973) internal successors, (221), 38 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) [2022-10-04 02:43:34,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:34,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:43:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-10-04 02:43:38,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:43:38,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:43:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:43:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1204771528, now seen corresponding path program 1 times [2022-10-04 02:43:38,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:43:38,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885015057] [2022-10-04 02:43:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:43:38,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:43:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:43:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:43:40,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:43:40,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885015057] [2022-10-04 02:43:40,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885015057] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:43:40,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232395250] [2022-10-04 02:43:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:43:40,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:43:40,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:43:40,831 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 02:43:40,832 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 02:43:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:43:41,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 131 conjunts are in the unsatisfiable core [2022-10-04 02:43:41,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:43:41,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-10-04 02:43:41,135 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-04 02:43:41,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 02:43:41,199 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-10-04 02:43:41,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-10-04 02:43:41,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-04 02:43:41,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:43:41,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-04 02:43:41,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 16 [2022-10-04 02:43:42,172 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 14 treesize of output 16 [2022-10-04 02:43:43,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:43:43,342 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-04 02:43:43,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 28 [2022-10-04 02:43:43,590 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 33 treesize of output 15 [2022-10-04 02:43:43,865 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 13 treesize of output 9 [2022-10-04 02:43:44,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:43:44,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-10-04 02:43:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:43:44,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:43:45,129 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 48 treesize of output 42 [2022-10-04 02:43:45,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:43:45,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:44:06,506 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_88 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20)) 4) 4) 0)))) (and (or .cse0 (<= 0 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4))) (or (< 7 |c_ULTIMATE.start_main_~#r~3#1.offset|) (forall ((v_ArrVal_90 Int) (v_ArrVal_88 (Array Int Int)) (|v_ULTIMATE.start_write~int_#ptr#1.offset_23| Int)) (let ((.cse2 (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|)) (.cse3 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (or (let ((.cse1 (select (store .cse2 |v_ULTIMATE.start_write~int_#ptr#1.offset_23| v_ArrVal_90) .cse3))) (< (* 16 (div (+ (- 2) (* (- 1) .cse1)) 4)) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 9 (* .cse1 4)))) (not (<= 0 |v_ULTIMATE.start_write~int_#ptr#1.offset_23|)) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse2 .cse3) 4) 4) |v_ULTIMATE.start_write~int_#ptr#1.offset_23|))))) (or .cse0 (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 19) (select |c_#length| |c_ULTIMATE.start_main_~#r~3#1.base|))))) is different from false [2022-10-04 02:44:06,547 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_88 (Array Int Int))) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20)) 4) 4) 0)))) (and (or (<= 0 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 4)) .cse0) (or (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 19) (select |c_#length| |c_ULTIMATE.start_main_~#r~3#1.base|)) .cse0) (or (forall ((v_ArrVal_90 Int) (v_ArrVal_88 (Array Int Int)) (|v_ULTIMATE.start_write~int_#ptr#1.offset_23| Int)) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#writer~0#1.base| v_ArrVal_88) |c_ULTIMATE.start_main_~#r~3#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 20))) (or (not (<= 0 |v_ULTIMATE.start_write~int_#ptr#1.offset_23|)) (< (+ |c_ULTIMATE.start_main_~#r~3#1.offset| (* (select .cse1 .cse2) 4) 4) |v_ULTIMATE.start_write~int_#ptr#1.offset_23|) (let ((.cse3 (select (store .cse1 |v_ULTIMATE.start_write~int_#ptr#1.offset_23| v_ArrVal_90) .cse2))) (< (* 16 (div (+ (- 2) (* (- 1) .cse3)) 4)) (+ |c_ULTIMATE.start_main_~#r~3#1.offset| 9 (* .cse3 4))))))) (< 7 |c_ULTIMATE.start_main_~#r~3#1.offset|)))) is different from false [2022-10-04 02:44:09,266 INFO L356 Elim1Store]: treesize reduction 45, result has 63.7 percent of original size [2022-10-04 02:44:09,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 261 treesize of output 292 [2022-10-04 02:44:09,736 INFO L356 Elim1Store]: treesize reduction 106, result has 18.5 percent of original size [2022-10-04 02:44:09,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 16277769 treesize of output 16253208 [2022-10-04 02:45:05,927 WARN L233 SmtUtils]: Spent 56.16s on a formula simplification. DAG size of input: 8445 DAG size of output: 8444 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:45:06,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19398766 treesize of output 17825902 [2022-10-04 02:45:42,319 WARN L233 SmtUtils]: Spent 35.93s on a formula simplification that was a NOOP. DAG size: 8452 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:45:42,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19398766 treesize of output 18612334 [2022-10-04 02:46:21,335 WARN L233 SmtUtils]: Spent 38.65s on a formula simplification that was a NOOP. DAG size: 8450 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:47:00,990 WARN L233 SmtUtils]: Spent 38.47s on a formula simplification that was a NOOP. DAG size: 8428 (called from [L 166] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate) [2022-10-04 02:47:39,824 WARN L233 SmtUtils]: Spent 38.82s on a formula simplification that was a NOOP. DAG size: 8421 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:48:19,213 WARN L233 SmtUtils]: Spent 39.37s on a formula simplification that was a NOOP. DAG size: 8421 (called from [L 171] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate) [2022-10-04 02:48:59,304 WARN L233 SmtUtils]: Spent 39.79s on a formula simplification that was a NOOP. DAG size: 8450 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:49:02,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18612358 treesize of output 18612354 [2022-10-04 02:49:39,966 WARN L233 SmtUtils]: Spent 37.86s on a formula simplification that was a NOOP. DAG size: 8449 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:49:42,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18612354 treesize of output 18612346 [2022-10-04 02:50:19,416 WARN L233 SmtUtils]: Spent 36.85s on a formula simplification that was a NOOP. DAG size: 8448 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:54:33,330 WARN L233 SmtUtils]: Spent 1.99m on a formula simplification. DAG size of input: 4206 DAG size of output: 4206 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:55:17,908 WARN L233 SmtUtils]: Spent 32.05s on a formula simplification. DAG size of input: 2297 DAG size of output: 2297 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:56:03,673 WARN L233 SmtUtils]: Spent 39.59s on a formula simplification. DAG size of input: 2295 DAG size of output: 2295 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:56:21,741 WARN L233 SmtUtils]: Spent 11.94s on a formula simplification. DAG size of input: 1636 DAG size of output: 1636 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:56:39,139 WARN L233 SmtUtils]: Spent 12.47s on a formula simplification. DAG size of input: 1634 DAG size of output: 1634 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:56:54,614 WARN L233 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 1632 DAG size of output: 1632 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:57:08,341 WARN L233 SmtUtils]: Spent 10.89s on a formula simplification. DAG size of input: 1630 DAG size of output: 1630 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:57:23,542 WARN L233 SmtUtils]: Spent 12.58s on a formula simplification. DAG size of input: 1628 DAG size of output: 1628 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:57:40,171 WARN L233 SmtUtils]: Spent 11.46s on a formula simplification. DAG size of input: 1626 DAG size of output: 1626 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-10-04 02:57:55,177 WARN L233 SmtUtils]: Spent 12.31s on a formula simplification. DAG size of input: 1626 DAG size of output: 1626 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2022-10-04 02:58:04,386 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-10-04 02:58:04,389 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:58:04,404 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 02:58:04,404 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-04 02:58:04,404 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 02:58:04,413 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 02:58:04,605 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,SelfDestructingSolverStorable2 [2022-10-04 02:58:04,606 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 298 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-10-04 02:58:04,610 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-04 02:58:04,611 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/3) [2022-10-04 02:58:04,612 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-04 02:58:04,613 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-04 02:58:04,615 INFO L202 PluginConnector]: Adding new model ring_2w1r-1.line920.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 02:58:04 BasicIcfg [2022-10-04 02:58:04,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-04 02:58:04,615 INFO L158 Benchmark]: Toolchain (without parser) took 873866.63ms. Allocated memory was 211.8MB in the beginning and 823.1MB in the end (delta: 611.3MB). Free memory was 171.7MB in the beginning and 403.5MB in the end (delta: -231.8MB). Peak memory consumption was 517.8MB. Max. memory is 8.0GB. [2022-10-04 02:58:04,617 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 211.8MB. Free memory was 175.5MB in the beginning and 175.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-04 02:58:04,617 INFO L158 Benchmark]: Boogie Preprocessor took 72.84ms. Allocated memory is still 211.8MB. Free memory was 171.6MB in the beginning and 168.2MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-04 02:58:04,617 INFO L158 Benchmark]: RCFGBuilder took 757.57ms. Allocated memory is still 211.8MB. Free memory was 168.0MB in the beginning and 167.4MB in the end (delta: 624.9kB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. [2022-10-04 02:58:04,617 INFO L158 Benchmark]: TraceAbstraction took 873017.62ms. Allocated memory was 211.8MB in the beginning and 823.1MB in the end (delta: 611.3MB). Free memory was 166.8MB in the beginning and 403.5MB in the end (delta: -236.7MB). Peak memory consumption was 512.9MB. Max. memory is 8.0GB. [2022-10-04 02:58:04,621 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 211.8MB. Free memory was 175.5MB in the beginning and 175.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 72.84ms. Allocated memory is still 211.8MB. Free memory was 171.6MB in the beginning and 168.2MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 757.57ms. Allocated memory is still 211.8MB. Free memory was 168.0MB in the beginning and 167.4MB in the end (delta: 624.9kB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. * TraceAbstraction took 873017.62ms. Allocated memory was 211.8MB in the beginning and 823.1MB in the end (delta: 611.3MB). Free memory was 166.8MB in the beginning and 403.5MB in the end (delta: -236.7MB). Peak memory consumption was 512.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 142, positive: 138, positive conditional: 138, 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: 765, positive: 752, positive conditional: 752, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 752, positive: 752, positive conditional: 0, positive unconditional: 752, 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: 265, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 752, positive: 487, positive conditional: 0, positive unconditional: 487, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, 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: 193, positive: 190, positive conditional: 190, 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: 765, positive: 752, positive conditional: 752, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 752, positive: 752, positive conditional: 0, positive unconditional: 752, 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: 265, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 752, positive: 487, positive conditional: 0, positive unconditional: 487, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, 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: 430, positive: 424, positive conditional: 424, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 765, positive: 752, positive conditional: 752, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 752, positive: 752, positive conditional: 0, positive unconditional: 752, 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: 265, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 752, positive: 487, positive conditional: 0, positive unconditional: 487, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 265, Positive cache size: 265, Positive conditional cache size: 0, Positive unconditional cache size: 265, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 13, Statistics for Abstraction: - TimeoutResultAtElement [Line: 920]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 298 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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: 872.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 5.0s, 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: 44, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 422 ConstructedInterpolants, 0 QuantifiedInterpolants, 2609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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