/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:29:53,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:29:53,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:29:53,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-16 22:29:53,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:29:53,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:29:53,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:29:53,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:29:53,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:29:53,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:29:53,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:29:53,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:29:53,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:29:53,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:29:53,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:29:53,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:29:53,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:29:53,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:29:53,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:29:53,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:29:53,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:29:53,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:29:53,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:29:53,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:29:53,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:29:53,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:29:53,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:29:53,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:29:53,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:29:53,396 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:29:53,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:29:53,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:29:53,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:29:53,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:29:53,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:29:53,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:29:53,399 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:29:53,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:29:53,399 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:29:53,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:29:53,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:29:53,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:29:53,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:29:53,592 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:29:53,594 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:29:53,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-array-sum.wvr.bpl [2022-03-16 22:29:53,595 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-array-sum.wvr.bpl' [2022-03-16 22:29:53,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:29:53,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:29:53,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:29:53,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:29:53,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:29:53,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,643 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:29:53,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:29:53,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:29:53,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:29:53,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:29:53,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:29:53,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:29:53,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:29:53,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:29:53,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/1) ... [2022-03-16 22:29:53,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:29:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:29:53,693 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) [2022-03-16 22:29:53,699 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 [2022-03-16 22:29:53,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:29:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:29:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:29:53,722 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:29:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:29:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:29:53,722 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:29:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:29:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:29:53,722 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 22:29:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 22:29:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 22:29:53,723 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:29:53,756 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:29:53,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:29:53,837 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:29:53,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:29:53,864 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:29:53,866 INFO L202 PluginConnector]: Adding new model simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:29:53 BoogieIcfgContainer [2022-03-16 22:29:53,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:29:53,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:29:53,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:29:53,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:29:53,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:29:53" (1/2) ... [2022-03-16 22:29:53,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3988053b and model type simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:29:53, skipping insertion in model container [2022-03-16 22:29:53,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:29:53" (2/2) ... [2022-03-16 22:29:53,891 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-array-sum.wvr.bpl [2022-03-16 22:29:53,895 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:29:53,895 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:29:53,895 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:29:53,895 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:29:53,934 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 22:29:53,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:29:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:29:53,978 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) [2022-03-16 22:29:53,978 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 [2022-03-16 22:29:54,008 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:29:54,013 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 22:29:54,013 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 22:29:54,230 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 470 transitions and produced 432 states. [2022-03-16 22:29:54,231 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:29:54,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:29:54,238 INFO L85 PathProgramCache]: Analyzing trace with hash -433122634, now seen corresponding path program 1 times [2022-03-16 22:29:54,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:29:54,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535937289] [2022-03-16 22:29:54,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:54,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:29:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1626 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 1562 trivial. 0 not checked. [2022-03-16 22:29:54,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:29:54,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535937289] [2022-03-16 22:29:54,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535937289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 22:29:54,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 22:29:54,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 22:29:54,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146904636] [2022-03-16 22:29:54,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 22:29:54,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 22:29:54,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:29:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 22:29:54,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 22:29:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:54,557 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:29:54,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-03-16 22:29:54,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:54,710 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 464 transitions and produced 427 states. [2022-03-16 22:29:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:54,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 22:29:54,711 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:29:54,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:29:54,713 INFO L85 PathProgramCache]: Analyzing trace with hash -574185357, now seen corresponding path program 2 times [2022-03-16 22:29:54,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:29:54,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120208700] [2022-03-16 22:29:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:54,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:29:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-03-16 22:29:54,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:29:54,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120208700] [2022-03-16 22:29:54,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120208700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 22:29:54,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 22:29:54,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 22:29:54,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565634292] [2022-03-16 22:29:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 22:29:54,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 22:29:54,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:29:54,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 22:29:54,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 22:29:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:54,869 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:29:54,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-03-16 22:29:54,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:54,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:54,994 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 464 transitions and produced 427 states. [2022-03-16 22:29:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:54,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 22:29:54,996 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:29:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:29:54,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1800610759, now seen corresponding path program 1 times [2022-03-16 22:29:54,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:29:54,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906255185] [2022-03-16 22:29:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:29:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:55,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 678 proven. 858 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 22:29:55,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:29:55,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906255185] [2022-03-16 22:29:55,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906255185] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:29:55,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266121706] [2022-03-16 22:29:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:55,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:29:55,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:29:55,888 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) [2022-03-16 22:29:55,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:29:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:55,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-16 22:29:55,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:29:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 1150 proven. 4 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2022-03-16 22:29:56,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:29:57,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 1150 proven. 4 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2022-03-16 22:29:57,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266121706] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:29:57,301 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:29:57,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 19, 19] total 75 [2022-03-16 22:29:57,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77343107] [2022-03-16 22:29:57,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:29:57,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-03-16 22:29:57,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:29:57,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-03-16 22:29:57,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=966, Invalid=4734, Unknown=0, NotChecked=0, Total=5700 [2022-03-16 22:29:57,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:57,309 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:29:57,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.789473684210526) internal successors, (212), 75 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:29:57,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:57,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:57,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:59,143 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 901 transitions and produced 823 states. [2022-03-16 22:29:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:59,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:29:59,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-16 22:29:59,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 22:29:59,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-16 22:29:59,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:29:59,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:29:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2130202098, now seen corresponding path program 3 times [2022-03-16 22:29:59,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:29:59,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494534321] [2022-03-16 22:29:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:59,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:29:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5754 backedges. 2615 proven. 559 refuted. 0 times theorem prover too weak. 2580 trivial. 0 not checked. [2022-03-16 22:29:59,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:29:59,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494534321] [2022-03-16 22:29:59,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494534321] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:29:59,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529314511] [2022-03-16 22:29:59,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:29:59,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:29:59,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:29:59,643 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) [2022-03-16 22:29:59,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:29:59,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2022-03-16 22:29:59,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:29:59,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-16 22:29:59,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:30:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5754 backedges. 1220 proven. 52 refuted. 0 times theorem prover too weak. 4482 trivial. 0 not checked. [2022-03-16 22:30:00,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:30:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 5754 backedges. 1220 proven. 52 refuted. 0 times theorem prover too weak. 4482 trivial. 0 not checked. [2022-03-16 22:30:00,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529314511] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:30:00,275 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:30:00,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 15] total 26 [2022-03-16 22:30:00,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069219613] [2022-03-16 22:30:00,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:30:00,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-16 22:30:00,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:30:00,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-16 22:30:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-03-16 22:30:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:30:00,278 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:30:00,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.8846153846153846) internal successors, (101), 26 states have internal predecessors, (101), 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) [2022-03-16 22:30:00,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:00,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:00,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-03-16 22:30:00,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:30:00,870 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 945 transitions and produced 862 states. [2022-03-16 22:30:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-16 22:30:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:30:00,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:30:01,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:30:01,107 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:30:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:30:01,108 INFO L85 PathProgramCache]: Analyzing trace with hash -679664208, now seen corresponding path program 4 times [2022-03-16 22:30:01,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:30:01,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187100201] [2022-03-16 22:30:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:30:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:30:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:30:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5979 backedges. 408 proven. 3951 refuted. 0 times theorem prover too weak. 1620 trivial. 0 not checked. [2022-03-16 22:30:01,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:30:01,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187100201] [2022-03-16 22:30:01,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187100201] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:30:01,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078154725] [2022-03-16 22:30:01,592 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:30:01,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:30:01,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:30:01,593 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) [2022-03-16 22:30:01,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:30:01,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:30:01,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:30:01,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-16 22:30:01,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:30:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5979 backedges. 2249 proven. 289 refuted. 0 times theorem prover too weak. 3441 trivial. 0 not checked. [2022-03-16 22:30:02,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:30:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5979 backedges. 2249 proven. 289 refuted. 0 times theorem prover too weak. 3441 trivial. 0 not checked. [2022-03-16 22:30:03,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078154725] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:30:03,239 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:30:03,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 73 [2022-03-16 22:30:03,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539643426] [2022-03-16 22:30:03,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:30:03,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-03-16 22:30:03,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:30:03,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-03-16 22:30:03,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=659, Invalid=4743, Unknown=0, NotChecked=0, Total=5402 [2022-03-16 22:30:03,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:30:03,242 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:30:03,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.5405405405405403) internal successors, (188), 73 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 22:30:03,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:03,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:03,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-03-16 22:30:03,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:30:03,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:30:07,228 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2975 transitions and produced 2522 states. [2022-03-16 22:30:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:30:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:30:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:30:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-03-16 22:30:07,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 22:30:07,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:30:07,444 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:30:07,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:30:07,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2109984360, now seen corresponding path program 5 times [2022-03-16 22:30:07,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:30:07,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81207480] [2022-03-16 22:30:07,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:30:07,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:30:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:30:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 48341 backedges. 10476 proven. 833 refuted. 0 times theorem prover too weak. 37032 trivial. 0 not checked. [2022-03-16 22:30:08,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:30:08,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81207480] [2022-03-16 22:30:08,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81207480] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:30:08,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133193096] [2022-03-16 22:30:08,404 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:30:08,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:30:08,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:30:08,409 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) [2022-03-16 22:30:08,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:30:58,805 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 115 check-sat command(s) [2022-03-16 22:30:58,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:30:58,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 97 conjunts are in the unsatisfiable core [2022-03-16 22:30:58,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:31:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 48341 backedges. 24905 proven. 184 refuted. 0 times theorem prover too weak. 23252 trivial. 0 not checked. [2022-03-16 22:31:01,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:31:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 48341 backedges. 24905 proven. 184 refuted. 0 times theorem prover too weak. 23252 trivial. 0 not checked. [2022-03-16 22:31:04,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133193096] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:31:04,194 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:31:04,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 71, 71] total 156 [2022-03-16 22:31:04,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440550394] [2022-03-16 22:31:04,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:31:04,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 156 states [2022-03-16 22:31:04,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:31:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2022-03-16 22:31:04,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9301, Invalid=14879, Unknown=0, NotChecked=0, Total=24180 [2022-03-16 22:31:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:31:04,202 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:31:04,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 156 states, 156 states have (on average 2.717948717948718) internal successors, (424), 156 states have internal predecessors, (424), 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) [2022-03-16 22:31:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:31:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:31:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:31:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:31:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2022-03-16 22:31:04,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:31:15,335 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6234 transitions and produced 4815 states. [2022-03-16 22:31:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:31:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:31:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:31:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:31:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-03-16 22:31:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-03-16 22:31:15,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 22:31:15,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:31:15,555 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:31:15,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:31:15,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1964087921, now seen corresponding path program 2 times [2022-03-16 22:31:15,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:31:15,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284647692] [2022-03-16 22:31:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:31:15,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:31:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:31:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 189553 backedges. 137331 proven. 44815 refuted. 0 times theorem prover too weak. 7407 trivial. 0 not checked. [2022-03-16 22:31:51,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:31:51,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284647692] [2022-03-16 22:31:51,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284647692] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:31:51,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882519755] [2022-03-16 22:31:51,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:31:51,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:31:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:31:51,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:31:51,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 22:31:52,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:31:52,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:31:52,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 4153 conjuncts, 582 conjunts are in the unsatisfiable core [2022-03-16 22:31:52,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:31:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 189553 backedges. 138044 proven. 44102 refuted. 0 times theorem prover too weak. 7407 trivial. 0 not checked. [2022-03-16 22:31:54,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:32:27,048 INFO L134 CoverageAnalysis]: Checked inductivity of 189553 backedges. 138044 proven. 44102 refuted. 0 times theorem prover too weak. 7407 trivial. 0 not checked. [2022-03-16 22:32:27,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882519755] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:32:27,048 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:32:27,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [420, 420, 420] total 691 [2022-03-16 22:32:27,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936521153] [2022-03-16 22:32:27,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:32:27,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 692 states [2022-03-16 22:32:27,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:32:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 692 interpolants. [2022-03-16 22:32:27,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124409, Invalid=353763, Unknown=0, NotChecked=0, Total=478172 [2022-03-16 22:32:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:32:27,103 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:32:27,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 692 states, 692 states have (on average 2.6098265895953756) internal successors, (1806), 691 states have internal predecessors, (1806), 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) [2022-03-16 22:32:27,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:32:27,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:32:27,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:32:27,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:32:27,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2022-03-16 22:32:27,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2022-03-16 22:32:27,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:38:13,512 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8459 transitions and produced 6278 states. [2022-03-16 22:38:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:38:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:38:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:38:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:38:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-03-16 22:38:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-03-16 22:38:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 828 states. [2022-03-16 22:38:13,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-16 22:38:13,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:38:13,736 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:38:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:38:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash -883207019, now seen corresponding path program 3 times [2022-03-16 22:38:13,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:38:13,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002494529] [2022-03-16 22:38:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:38:13,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:38:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:38:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 362877 backedges. 75625 proven. 113648 refuted. 0 times theorem prover too weak. 173604 trivial. 0 not checked. [2022-03-16 22:38:42,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:38:42,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002494529] [2022-03-16 22:38:42,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002494529] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:38:42,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80697047] [2022-03-16 22:38:42,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:38:42,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:38:42,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:38:42,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:38:42,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 22:40:29,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 174 check-sat command(s) [2022-03-16 22:40:29,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:40:30,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 2799 conjuncts, 173 conjunts are in the unsatisfiable core [2022-03-16 22:40:30,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:40:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 362877 backedges. 84238 proven. 10454 refuted. 0 times theorem prover too weak. 268185 trivial. 0 not checked. [2022-03-16 22:40:47,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:40:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 362877 backedges. 84238 proven. 10454 refuted. 0 times theorem prover too weak. 268185 trivial. 0 not checked. [2022-03-16 22:40:50,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80697047] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:40:50,204 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:40:50,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [367, 146, 146] total 517 [2022-03-16 22:40:50,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519294673] [2022-03-16 22:40:50,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:40:50,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 517 states [2022-03-16 22:40:50,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:40:50,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 517 interpolants. [2022-03-16 22:40:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54724, Invalid=212048, Unknown=0, NotChecked=0, Total=266772 [2022-03-16 22:40:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:40:50,226 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:40:50,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 517 states, 517 states have (on average 2.607350096711799) internal successors, (1348), 517 states have internal predecessors, (1348), 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) [2022-03-16 22:40:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:40:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 22:40:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:40:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-16 22:40:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2022-03-16 22:40:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2022-03-16 22:40:50,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 828 states. [2022-03-16 22:40:50,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 22:44:09,902 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 [2022-03-16 22:44:09,903 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 [2022-03-16 22:44:09,904 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 22:44:09,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 22:44:10,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:44:10,123 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-03-16 22:44:10,125 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 22:44:10,125 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 22:44:10,125 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 22:44:10,125 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 22:44:10,129 INFO L732 BasicCegarLoop]: Path program histogram: [5, 3] [2022-03-16 22:44:10,131 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:44:10,131 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:44:10,142 INFO L202 PluginConnector]: Adding new model simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:44:10 BasicIcfg [2022-03-16 22:44:10,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:44:10,143 INFO L158 Benchmark]: Toolchain (without parser) took 856522.39ms. Allocated memory was 213.9MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 174.2MB in the beginning and 418.2MB in the end (delta: -244.0MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-16 22:44:10,143 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:44:10,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.54ms. Allocated memory is still 213.9MB. Free memory was 174.0MB in the beginning and 172.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:44:10,144 INFO L158 Benchmark]: Boogie Preprocessor took 10.70ms. Allocated memory is still 213.9MB. Free memory was 172.6MB in the beginning and 171.6MB in the end (delta: 990.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:44:10,144 INFO L158 Benchmark]: RCFGBuilder took 209.32ms. Allocated memory is still 213.9MB. Free memory was 171.5MB in the beginning and 162.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 22:44:10,144 INFO L158 Benchmark]: TraceAbstraction took 856275.92ms. Allocated memory was 213.9MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 161.6MB in the beginning and 418.2MB in the end (delta: -256.6MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-16 22:44:10,145 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 213.9MB. Free memory is still 175.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.54ms. Allocated memory is still 213.9MB. Free memory was 174.0MB in the beginning and 172.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.70ms. Allocated memory is still 213.9MB. Free memory was 172.6MB in the beginning and 171.6MB in the end (delta: 990.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 209.32ms. Allocated memory is still 213.9MB. Free memory was 171.5MB in the beginning and 162.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 856275.92ms. Allocated memory was 213.9MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 161.6MB in the beginning and 418.2MB in the end (delta: -256.6MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 856.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 564.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2231, 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: 0.4s SsaConstructionTime, 163.5s SatisfiabilityAnalysisTime, 125.8s InterpolantComputationTime, 9530 NumberOfCodeBlocks, 8334 NumberOfCodeBlocksAsserted, 319 NumberOfCheckSat, 14145 ConstructedInterpolants, 0 QuantifiedInterpolants, 45063 SizeOfPredicates, 17 NumberOfNonLiveVariables, 10220 ConjunctsInSsa, 932 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 1570548/1845382 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