/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/09-regions_17-arrayloop_nr.line613.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 12:36:24,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 12:36:24,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 12:36:24,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 12:36:24,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 12:36:24,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 12:36:24,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 12:36:24,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 12:36:24,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 12:36:24,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 12:36:24,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 12:36:24,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 12:36:24,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 12:36:24,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 12:36:24,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 12:36:24,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 12:36:24,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 12:36:24,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 12:36:24,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 12:36:24,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 12:36:24,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 12:36:24,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 12:36:24,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 12:36:24,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 12:36:24,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 12:36:24,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 12:36:24,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 12:36:24,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 12:36:24,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 12:36:24,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 12:36:24,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 12:36:24,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 12:36:24,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 12:36:24,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 12:36:24,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 12:36:24,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 12:36:24,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 12:36:24,495 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 12:36:24,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 12:36:24,495 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 12:36:24,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 12:36:24,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 12:36:24,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 12:36:24,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 12:36:24,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 12:36:24,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 12:36:24,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 12:36:24,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 12:36:24,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 12:36:24,499 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 12:36:24,499 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 12:36:24,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 12:36:24,499 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 12:36:24,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 12:36:24,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 12:36:24,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 12:36:24,711 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 12:36:24,711 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 12:36:24,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/09-regions_17-arrayloop_nr.line613.bpl [2022-10-03 12:36:24,713 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/09-regions_17-arrayloop_nr.line613.bpl' [2022-10-03 12:36:24,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 12:36:24,757 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 12:36:24,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 12:36:24,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 12:36:24,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 12:36:24,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 12:36:24,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 12:36:24,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 12:36:24,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 12:36:24,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/1) ... [2022-10-03 12:36:24,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 12:36:24,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:36:24,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-03 12:36:24,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-03 12:36:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-03 12:36:24,896 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-03 12:36:24,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 12:36:24,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 12:36:24,897 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 12:36:25,041 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 12:36:25,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 12:36:25,428 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 12:36:25,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 12:36:25,442 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-03 12:36:25,445 INFO L202 PluginConnector]: Adding new model 09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:36:25 BoogieIcfgContainer [2022-10-03 12:36:25,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 12:36:25,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 12:36:25,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 12:36:25,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 12:36:25,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 12:36:24" (1/2) ... [2022-10-03 12:36:25,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa9e5da and model type 09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:36:25, skipping insertion in model container [2022-10-03 12:36:25,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:36:25" (2/2) ... [2022-10-03 12:36:25,455 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.line613.bpl [2022-10-03 12:36:25,460 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 12:36:25,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 12:36:25,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 12:36:25,468 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 12:36:25,559 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-03 12:36:25,602 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 12:36:25,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 12:36:25,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:36:25,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 12:36:25,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 12:36:25,634 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 12:36:25,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 12:36:25,650 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;@5eb07bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 12:36:25,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 12:36:25,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 12:36:25,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 12:36:25,699 INFO L85 PathProgramCache]: Analyzing trace with hash 76908091, now seen corresponding path program 1 times [2022-10-03 12:36:25,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 12:36:25,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703412817] [2022-10-03 12:36:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:36:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 12:36:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:36:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 12:36:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703412817] [2022-10-03 12:36:25,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703412817] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 12:36:25,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 12:36:25,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 12:36:25,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622587440] [2022-10-03 12:36:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 12:36:25,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 12:36:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 12:36:25,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 12:36:25,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 12:36:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:25,958 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 12:36:25,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 12:36:25,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:25,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 12:36:25,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 12:36:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 12:36:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash 964411772, now seen corresponding path program 1 times [2022-10-03 12:36:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 12:36:25,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840563518] [2022-10-03 12:36:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:36:25,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 12:36:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:36:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 12:36:26,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840563518] [2022-10-03 12:36:26,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840563518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 12:36:26,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 12:36:26,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-03 12:36:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626557520] [2022-10-03 12:36:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 12:36:26,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-03 12:36:26,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 12:36:26,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-03 12:36:26,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-03 12:36:26,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 12:36:26,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 12:36:26,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:36:26,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 12:36:26,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 12:36:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 12:36:26,096 INFO L85 PathProgramCache]: Analyzing trace with hash 316019036, now seen corresponding path program 1 times [2022-10-03 12:36:26,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 12:36:26,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111464090] [2022-10-03 12:36:26,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:36:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 12:36:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:36:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:26,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 12:36:26,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111464090] [2022-10-03 12:36:26,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111464090] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 12:36:26,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328789289] [2022-10-03 12:36:26,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:36:26,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:36:26,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:36:26,217 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) [2022-10-03 12:36:26,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 12:36:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:36:26,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-03 12:36:26,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 12:36:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:26,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 12:36:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:26,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328789289] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 12:36:26,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 12:36:26,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-03 12:36:26,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479578138] [2022-10-03 12:36:26,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 12:36:26,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-03 12:36:26,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 12:36:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-03 12:36:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-03 12:36:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,576 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 12:36:26,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.7) internal successors, (227), 10 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 12:36:26,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:36:26,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:36:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:36:26,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-03 12:36:26,888 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 [2022-10-03 12:36:26,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 12:36:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 12:36:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash -847813284, now seen corresponding path program 2 times [2022-10-03 12:36:26,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 12:36:26,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604013728] [2022-10-03 12:36:26,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:36:26,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 12:36:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:36:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 12:36:27,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604013728] [2022-10-03 12:36:27,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604013728] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 12:36:27,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087123794] [2022-10-03 12:36:27,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 12:36:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:36:27,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:36:27,117 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) [2022-10-03 12:36:27,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-03 12:36:27,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-03 12:36:27,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 12:36:27,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-03 12:36:27,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 12:36:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:27,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 12:36:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:27,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087123794] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 12:36:27,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 12:36:27,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-03 12:36:27,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331557894] [2022-10-03 12:36:27,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 12:36:27,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-03 12:36:27,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 12:36:27,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-03 12:36:27,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-03 12:36:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:27,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 12:36:27,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 24.38888888888889) internal successors, (439), 18 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 12:36:27,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:27,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:36:27,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:36:27,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:36:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:36:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:36:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-03 12:36:27,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-03 12:36:27,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:36:28,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 12:36:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 12:36:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash 492768604, now seen corresponding path program 3 times [2022-10-03 12:36:28,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 12:36:28,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35527394] [2022-10-03 12:36:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:36:28,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 12:36:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:36:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:36:28,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 12:36:28,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35527394] [2022-10-03 12:36:28,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35527394] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 12:36:28,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891164989] [2022-10-03 12:36:28,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-03 12:36:28,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:36:28,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:36:28,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 12:36:28,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-03 12:37:12,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-03 12:37:12,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 12:37:12,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-03 12:37:12,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 12:37:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:37:12,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 12:37:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 12:37:13,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891164989] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 12:37:13,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 12:37:13,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-10-03 12:37:13,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646643610] [2022-10-03 12:37:13,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 12:37:13,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-03 12:37:13,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 12:37:13,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-03 12:37:13,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-10-03 12:37:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:13,208 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 12:37:13,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 26.0) internal successors, (598), 23 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 12:37:13,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:13,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:37:13,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:37:13,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-03 12:37:13,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:37:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:37:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-03 12:37:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 12:37:13,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-03 12:37:13,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:37:13,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 12:37:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 12:37:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash 109092220, now seen corresponding path program 4 times [2022-10-03 12:37:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 12:37:13,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443634534] [2022-10-03 12:37:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 12:37:13,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 12:37:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 12:37:14,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 3 proven. 767 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2022-10-03 12:37:14,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 12:37:14,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443634534] [2022-10-03 12:37:14,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443634534] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 12:37:14,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843809634] [2022-10-03 12:37:14,634 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-03 12:37:14,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:37:14,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:37:14,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 12:37:14,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-03 12:37:14,959 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-03 12:37:14,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 12:37:14,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-03 12:37:14,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 12:37:14,993 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 [2022-10-03 12:37:15,050 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 12:37:15,050 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 [2022-10-03 12:37:15,207 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 12:37:15,207 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 [2022-10-03 12:37:15,328 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 12:37:15,329 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 18 [2022-10-03 12:37:15,486 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 12:37:15,486 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 18 [2022-10-03 12:37:15,611 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 12:37:15,612 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 [2022-10-03 12:37:15,740 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 12:37:15,740 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 18 [2022-10-03 12:37:15,895 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 12:37:15,895 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 18 [2022-10-03 12:37:16,083 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 12:37:16,084 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 18 [2022-10-03 12:37:16,206 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 12:37:16,207 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 18 [2022-10-03 12:37:16,266 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 12:37:16,267 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 [2022-10-03 12:37:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 15 proven. 840 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-10-03 12:37:16,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 12:37:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 18 proven. 864 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2022-10-03 12:37:19,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843809634] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 12:37:19,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 12:37:19,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 14] total 26 [2022-10-03 12:37:19,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776936860] [2022-10-03 12:37:19,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 12:37:19,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-03 12:37:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 12:37:19,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-03 12:37:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2022-10-03 12:37:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:19,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 12:37:19,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 10.692307692307692) internal successors, (278), 27 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 12:37:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:37:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:37:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-03 12:37:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-10-03 12:37:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:19,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 12:37:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 12:37:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:37:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-03 12:37:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 12:37:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 12:37:19,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 12:37:19,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-03 12:37:19,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 12:37:19,585 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-10-03 12:37:19,586 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was SAFE (1/2) [2022-10-03 12:37:19,590 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 12:37:19,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 12:37:19,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 12:37:19,591 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 12:37:19,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2022-10-03 12:37:19,594 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 12:37:19,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 12:37:19,595 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;@5eb07bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 12:37:19,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 12:37:19,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 12:37:19,609 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 12:37:19,610 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/2) [2022-10-03 12:37:19,610 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-03 12:37:19,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-03 12:37:19,612 INFO L202 PluginConnector]: Adding new model 09-regions_17-arrayloop_nr.line613.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 12:37:19 BasicIcfg [2022-10-03 12:37:19,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-03 12:37:19,613 INFO L158 Benchmark]: Toolchain (without parser) took 54856.03ms. Allocated memory was 183.5MB in the beginning and 257.9MB in the end (delta: 74.4MB). Free memory was 142.9MB in the beginning and 150.3MB in the end (delta: -7.3MB). Peak memory consumption was 67.3MB. Max. memory is 8.0GB. [2022-10-03 12:37:19,613 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-03 12:37:19,613 INFO L158 Benchmark]: Boogie Preprocessor took 62.89ms. Allocated memory is still 183.5MB. Free memory was 142.9MB in the beginning and 139.6MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-03 12:37:19,613 INFO L158 Benchmark]: RCFGBuilder took 623.60ms. Allocated memory is still 183.5MB. Free memory was 139.5MB in the beginning and 148.0MB in the end (delta: -8.5MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2022-10-03 12:37:19,614 INFO L158 Benchmark]: TraceAbstraction took 54166.00ms. Allocated memory was 183.5MB in the beginning and 257.9MB in the end (delta: 74.4MB). Free memory was 147.5MB in the beginning and 150.3MB in the end (delta: -2.8MB). Peak memory consumption was 71.6MB. Max. memory is 8.0GB. [2022-10-03 12:37:19,614 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 0.10ms. Allocated memory is still 183.5MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 62.89ms. Allocated memory is still 183.5MB. Free memory was 142.9MB in the beginning and 139.6MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 623.60ms. Allocated memory is still 183.5MB. Free memory was 139.5MB in the beginning and 148.0MB in the end (delta: -8.5MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. * TraceAbstraction took 54166.00ms. Allocated memory was 183.5MB in the beginning and 257.9MB in the end (delta: 74.4MB). Free memory was 147.5MB in the beginning and 150.3MB in the end (delta: -2.8MB). Peak memory consumption was 71.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, 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: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 3, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, 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: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 6, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, 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: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 12, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 24, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 24, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 48, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 33, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 81, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 33, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 114, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 114, negative conditional: 114, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 114, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 3, Statistics for Abstraction: - PositiveResult [Line: 613]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 3 procedures, 473 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 54.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.7s, 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: 74, 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, 44.7s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2886 NumberOfCodeBlocks, 2872 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4249 ConstructedInterpolants, 442 QuantifiedInterpolants, 24081 SizeOfPredicates, 83 NumberOfNonLiveVariables, 3694 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 4714/11034 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 3 procedures, 473 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-03 12:37:19,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Forceful destruction successful, exit code 0 [2022-10-03 12:37:19,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-10-03 12:37:20,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...