/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-more/queue-add-2-nl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 23:07:44,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 23:07:44,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 23:07:44,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 23:07:44,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 23:07:44,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 23:07:44,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 23:07:44,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 23:07:44,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 23:07:44,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 23:07:44,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 23:07:44,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 23:07:44,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 23:07:44,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 23:07:44,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 23:07:44,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 23:07:44,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 23:07:44,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 23:07:44,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 23:07:44,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 23:07:44,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 23:07:44,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 23:07:44,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 23:07:44,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 23:07:44,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 23:07:44,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 23:07:44,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 23:07:44,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 23:07:44,366 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 23:07:44,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 23:07:44,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 23:07:44,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 23:07:44,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 23:07:44,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 23:07:44,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 23:07:44,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 23:07:44,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 23:07:44,396 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 23:07:44,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 23:07:44,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 23:07:44,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 23:07:44,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 23:07:44,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 23:07:44,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 23:07:44,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 23:07:44,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 23:07:44,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 23:07:44,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 23:07:44,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 23:07:44,399 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 23:07:44,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 23:07:44,400 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 23:07:44,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 23:07:44,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 23:07:44,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 23:07:44,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 23:07:44,627 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 23:07:44,630 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 23:07:44,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl [2022-03-16 23:07:44,631 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl' [2022-03-16 23:07:44,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 23:07:44,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 23:07:44,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 23:07:44,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 23:07:44,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 23:07:44,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,677 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 23:07:44,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 23:07:44,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 23:07:44,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 23:07:44,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 23:07:44,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 23:07:44,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 23:07:44,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 23:07:44,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 23:07:44,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/1) ... [2022-03-16 23:07:44,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 23:07:44,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:07:44,749 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 23:07:44,755 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 23:07:44,784 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 23:07:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 23:07:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 23:07:44,784 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 23:07:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 23:07:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 23:07:44,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 23:07:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 23:07:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 23:07:44,786 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 23:07:44,831 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 23:07:44,832 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 23:07:44,928 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 23:07:44,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 23:07:44,941 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 23:07:44,951 INFO L202 PluginConnector]: Adding new model queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:07:44 BoogieIcfgContainer [2022-03-16 23:07:44,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 23:07:44,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 23:07:44,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 23:07:44,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 23:07:44,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:07:44" (1/2) ... [2022-03-16 23:07:44,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57da1ed3 and model type queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:07:44, skipping insertion in model container [2022-03-16 23:07:44,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:07:44" (2/2) ... [2022-03-16 23:07:44,972 INFO L111 eAbstractionObserver]: Analyzing ICFG queue-add-2-nl.wvr.bpl [2022-03-16 23:07:44,976 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 23:07:44,976 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 23:07:44,976 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 23:07:44,976 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 23:07:45,032 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 23:07:45,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 23:07:45,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:07:45,106 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 23:07:45,107 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 23:07:45,144 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 23:07:45,156 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 23:07:45,156 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 23:07:45,741 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 676 transitions and produced 617 states. [2022-03-16 23:07:45,743 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:07:45,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:07:45,751 INFO L85 PathProgramCache]: Analyzing trace with hash 95943249, now seen corresponding path program 1 times [2022-03-16 23:07:45,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:07:45,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799228455] [2022-03-16 23:07:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:07:45,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:07:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:07:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6064 backedges. 0 proven. 5570 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-03-16 23:07:47,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:07:47,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799228455] [2022-03-16 23:07:47,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799228455] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:07:47,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860232285] [2022-03-16 23:07:47,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:07:47,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:07:47,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:07:47,422 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 23:07:47,423 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 23:07:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:07:47,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-16 23:07:47,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:07:48,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:07:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6064 backedges. 0 proven. 5516 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-03-16 23:07:49,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:07:49,456 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:07:49,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:07:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6064 backedges. 0 proven. 5516 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-03-16 23:07:49,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860232285] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:07:49,709 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:07:49,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 45 [2022-03-16 23:07:49,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761064694] [2022-03-16 23:07:49,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:07:49,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-16 23:07:49,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:07:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-16 23:07:49,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1959, Unknown=0, NotChecked=0, Total=2070 [2022-03-16 23:07:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:07:49,754 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:07:49,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.0) internal successors, (276), 45 states have internal predecessors, (276), 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 23:07:49,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:07:51,117 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1416 transitions and produced 1275 states. [2022-03-16 23:07:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:07:51,148 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 23:07:51,327 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,SelfDestructingSolverStorable0 [2022-03-16 23:07:51,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:07:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:07:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash -669581353, now seen corresponding path program 2 times [2022-03-16 23:07:51,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:07:51,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207963280] [2022-03-16 23:07:51,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:07:51,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:07:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:07:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 32166 backedges. 0 proven. 30279 refuted. 0 times theorem prover too weak. 1887 trivial. 0 not checked. [2022-03-16 23:07:52,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:07:52,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207963280] [2022-03-16 23:07:52,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207963280] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:07:52,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595804772] [2022-03-16 23:07:52,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 23:07:52,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:07:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:07:52,831 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 23:07:52,833 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 23:07:53,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 23:07:53,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:07:53,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 290 conjunts are in the unsatisfiable core [2022-03-16 23:07:53,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:08:04,003 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:08:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 32166 backedges. 0 proven. 32166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 23:08:04,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:08:05,252 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:08:05,253 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:08:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 32166 backedges. 0 proven. 30183 refuted. 0 times theorem prover too weak. 1983 trivial. 0 not checked. [2022-03-16 23:08:05,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595804772] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:08:05,618 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:08:05,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 145, 33] total 178 [2022-03-16 23:08:05,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928630797] [2022-03-16 23:08:05,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:08:05,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 179 states [2022-03-16 23:08:05,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:08:05,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2022-03-16 23:08:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=31351, Unknown=0, NotChecked=0, Total=31862 [2022-03-16 23:08:05,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:05,632 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:08:05,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 179 states, 179 states have (on average 4.4636871508379885) internal successors, (799), 178 states have internal predecessors, (799), 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 23:08:05,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:05,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:11,010 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2024 transitions and produced 1822 states. [2022-03-16 23:08:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:11,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-16 23:08:11,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:11,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:08:11,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:08:11,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1501168281, now seen corresponding path program 3 times [2022-03-16 23:08:11,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:08:11,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263677155] [2022-03-16 23:08:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:08:11,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:08:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:08:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 67765 backedges. 0 proven. 64960 refuted. 0 times theorem prover too weak. 2805 trivial. 0 not checked. [2022-03-16 23:08:13,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:08:13,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263677155] [2022-03-16 23:08:13,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263677155] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:08:13,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628649943] [2022-03-16 23:08:13,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 23:08:13,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:13,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:08:13,440 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 23:08:13,441 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 23:08:14,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 164 check-sat command(s) [2022-03-16 23:08:14,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:08:14,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1867 conjuncts, 84 conjunts are in the unsatisfiable core [2022-03-16 23:08:14,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:08:17,401 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:08:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 67765 backedges. 0 proven. 64864 refuted. 0 times theorem prover too weak. 2901 trivial. 0 not checked. [2022-03-16 23:08:17,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:08:18,756 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:08:18,757 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:08:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 67765 backedges. 0 proven. 64864 refuted. 0 times theorem prover too weak. 2901 trivial. 0 not checked. [2022-03-16 23:08:19,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628649943] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:08:19,233 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:08:19,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 43, 43] total 86 [2022-03-16 23:08:19,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709843672] [2022-03-16 23:08:19,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:08:19,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-16 23:08:19,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:08:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-16 23:08:19,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=7268, Unknown=0, NotChecked=0, Total=7482 [2022-03-16 23:08:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:19,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:08:19,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 6.114942528735632) internal successors, (532), 86 states have internal predecessors, (532), 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 23:08:19,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:19,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:19,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:22,788 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2596 transitions and produced 2333 states. [2022-03-16 23:08:22,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:22,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:08:22,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 23:08:22,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:22,989 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:08:22,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:08:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1890237713, now seen corresponding path program 4 times [2022-03-16 23:08:22,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:08:22,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047165529] [2022-03-16 23:08:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:08:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:08:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:08:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 112681 backedges. 0 proven. 108994 refuted. 0 times theorem prover too weak. 3687 trivial. 0 not checked. [2022-03-16 23:08:25,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:08:25,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047165529] [2022-03-16 23:08:25,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047165529] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:08:25,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702866997] [2022-03-16 23:08:25,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 23:08:25,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:25,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:08:25,804 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 23:08:25,804 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 23:08:26,190 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 23:08:26,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:08:26,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 104 conjunts are in the unsatisfiable core [2022-03-16 23:08:26,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:08:30,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:08:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 112681 backedges. 0 proven. 108898 refuted. 0 times theorem prover too weak. 3783 trivial. 0 not checked. [2022-03-16 23:08:30,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:08:31,985 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:08:31,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:08:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 112681 backedges. 0 proven. 108898 refuted. 0 times theorem prover too weak. 3783 trivial. 0 not checked. [2022-03-16 23:08:32,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702866997] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:08:32,698 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:08:32,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53, 53] total 106 [2022-03-16 23:08:32,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982085462] [2022-03-16 23:08:32,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:08:32,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-03-16 23:08:32,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:08:32,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-03-16 23:08:32,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=11078, Unknown=0, NotChecked=0, Total=11342 [2022-03-16 23:08:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:32,704 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:08:32,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 6.177570093457944) internal successors, (661), 106 states have internal predecessors, (661), 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 23:08:32,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:32,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:32,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:08:32,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:37,842 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3186 transitions and produced 2862 states. [2022-03-16 23:08:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:08:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:08:37,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 23:08:38,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:38,044 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:08:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:08:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash -333252359, now seen corresponding path program 5 times [2022-03-16 23:08:38,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:08:38,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178350503] [2022-03-16 23:08:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:08:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:08:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:08:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 171276 backedges. 0 proven. 166689 refuted. 0 times theorem prover too weak. 4587 trivial. 0 not checked. [2022-03-16 23:08:41,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:08:41,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178350503] [2022-03-16 23:08:41,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178350503] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:08:41,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152264327] [2022-03-16 23:08:41,920 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 23:08:41,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:41,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:08:41,922 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 23:08:41,923 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 23:08:43,134 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 272 check-sat command(s) [2022-03-16 23:08:43,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:08:43,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 124 conjunts are in the unsatisfiable core [2022-03-16 23:08:43,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:08:48,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:08:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 171276 backedges. 0 proven. 166593 refuted. 0 times theorem prover too weak. 4683 trivial. 0 not checked. [2022-03-16 23:08:48,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:08:50,744 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:08:50,744 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:08:51,776 INFO L134 CoverageAnalysis]: Checked inductivity of 171276 backedges. 0 proven. 166593 refuted. 0 times theorem prover too weak. 4683 trivial. 0 not checked. [2022-03-16 23:08:51,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152264327] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:08:51,777 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:08:51,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 63, 63] total 126 [2022-03-16 23:08:51,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285258496] [2022-03-16 23:08:51,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:08:51,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-03-16 23:08:51,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:08:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-03-16 23:08:51,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=15688, Unknown=0, NotChecked=0, Total=16002 [2022-03-16 23:08:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:51,782 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:08:51,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 127 states have (on average 6.228346456692913) internal successors, (791), 126 states have internal predecessors, (791), 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 23:08:51,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:51,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:51,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:08:51,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:08:51,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:08:58,913 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3776 transitions and produced 3391 states. [2022-03-16 23:08:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:08:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:08:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:08:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:08:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:08:58,934 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 23:08:59,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:08:59,115 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:08:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:08:59,115 INFO L85 PathProgramCache]: Analyzing trace with hash 702493191, now seen corresponding path program 6 times [2022-03-16 23:08:59,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:08:59,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481004711] [2022-03-16 23:08:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:08:59,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:09:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:09:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 242096 backedges. 0 proven. 236609 refuted. 0 times theorem prover too weak. 5487 trivial. 0 not checked. [2022-03-16 23:09:03,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:09:03,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481004711] [2022-03-16 23:09:03,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481004711] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:09:03,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81324016] [2022-03-16 23:09:03,896 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 23:09:03,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:09:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:09:03,900 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 23:09:03,901 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 23:09:05,967 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 317 check-sat command(s) [2022-03-16 23:09:05,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:09:06,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 3519 conjuncts, 144 conjunts are in the unsatisfiable core [2022-03-16 23:09:06,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:09:12,941 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:09:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 242096 backedges. 0 proven. 236513 refuted. 0 times theorem prover too weak. 5583 trivial. 0 not checked. [2022-03-16 23:09:13,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:09:15,419 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:09:15,420 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:09:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 242096 backedges. 0 proven. 236513 refuted. 0 times theorem prover too weak. 5583 trivial. 0 not checked. [2022-03-16 23:09:16,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81324016] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:09:16,954 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:09:16,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 73, 73] total 146 [2022-03-16 23:09:16,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205928787] [2022-03-16 23:09:16,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:09:16,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2022-03-16 23:09:16,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:09:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2022-03-16 23:09:16,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=21098, Unknown=0, NotChecked=0, Total=21462 [2022-03-16 23:09:16,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:09:16,958 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:09:16,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 6.26530612244898) internal successors, (921), 146 states have internal predecessors, (921), 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 23:09:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:09:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:09:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:09:16,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:09:16,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:09:16,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:09:26,808 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4366 transitions and produced 3920 states. [2022-03-16 23:09:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:09:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:09:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:09:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:09:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:09:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:09:26,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 23:09:27,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:09:27,009 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:09:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:09:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2080259103, now seen corresponding path program 7 times [2022-03-16 23:09:27,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:09:27,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137328986] [2022-03-16 23:09:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:09:27,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:09:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:09:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 325141 backedges. 0 proven. 318754 refuted. 0 times theorem prover too weak. 6387 trivial. 0 not checked. [2022-03-16 23:09:33,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:09:33,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137328986] [2022-03-16 23:09:33,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137328986] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:09:33,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675391672] [2022-03-16 23:09:33,473 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 23:09:33,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:09:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:09:33,474 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:09:33,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 23:09:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:09:34,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 4087 conjuncts, 164 conjunts are in the unsatisfiable core [2022-03-16 23:09:34,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:09:42,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:09:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 325141 backedges. 0 proven. 318658 refuted. 0 times theorem prover too weak. 6483 trivial. 0 not checked. [2022-03-16 23:09:43,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:09:45,895 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:09:45,895 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:09:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 325141 backedges. 0 proven. 318658 refuted. 0 times theorem prover too weak. 6483 trivial. 0 not checked. [2022-03-16 23:09:47,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675391672] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:09:47,650 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:09:47,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 83, 83] total 166 [2022-03-16 23:09:47,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378690647] [2022-03-16 23:09:47,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:09:47,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-03-16 23:09:47,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:09:47,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-03-16 23:09:47,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=27308, Unknown=0, NotChecked=0, Total=27722 [2022-03-16 23:09:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:09:47,655 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:09:47,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 6.293413173652695) internal successors, (1051), 166 states have internal predecessors, (1051), 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 23:09:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:09:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:09:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:09:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:09:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:09:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:09:47,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:10:00,732 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4956 transitions and produced 4449 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:10:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:10:00,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 23:10:00,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 23:10:00,934 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:10:00,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:10:00,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1423749857, now seen corresponding path program 8 times [2022-03-16 23:10:00,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:10:00,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512262081] [2022-03-16 23:10:00,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:10:00,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:10:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:10:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 420411 backedges. 0 proven. 413124 refuted. 0 times theorem prover too weak. 7287 trivial. 0 not checked. [2022-03-16 23:10:09,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:10:09,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512262081] [2022-03-16 23:10:09,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512262081] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:10:09,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425500052] [2022-03-16 23:10:09,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 23:10:09,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:10:09,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:10:09,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:10:09,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 23:10:10,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 23:10:10,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:10:10,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 4637 conjuncts, 1010 conjunts are in the unsatisfiable core [2022-03-16 23:10:10,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:11:42,261 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:11:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 420411 backedges. 0 proven. 420411 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 23:11:42,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:11:45,966 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:11:45,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:11:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 420411 backedges. 0 proven. 413028 refuted. 0 times theorem prover too weak. 7383 trivial. 0 not checked. [2022-03-16 23:11:48,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425500052] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:11:48,014 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:11:48,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 505, 93] total 598 [2022-03-16 23:11:48,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122722698] [2022-03-16 23:11:48,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:11:48,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 599 states [2022-03-16 23:11:48,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:11:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 599 interpolants. [2022-03-16 23:11:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=356491, Unknown=0, NotChecked=0, Total=358202 [2022-03-16 23:11:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:11:48,033 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:11:48,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 599 states, 599 states have (on average 4.43906510851419) internal successors, (2659), 598 states have internal predecessors, (2659), 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 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:11:48,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:12:34,216 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5564 transitions and produced 4996 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:12:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:12:34,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-16 23:12:34,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:12:34,418 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:12:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:12:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1161864529, now seen corresponding path program 9 times [2022-03-16 23:12:34,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:12:34,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191542] [2022-03-16 23:12:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:12:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:12:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:12:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 532000 backedges. 0 proven. 523795 refuted. 0 times theorem prover too weak. 8205 trivial. 0 not checked. [2022-03-16 23:12:44,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:12:44,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191542] [2022-03-16 23:12:44,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191542] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:12:44,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564625926] [2022-03-16 23:12:44,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 23:12:44,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:12:44,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:12:44,328 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:12:44,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 23:12:49,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 475 check-sat command(s) [2022-03-16 23:12:49,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:12:49,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 5186 conjuncts, 204 conjunts are in the unsatisfiable core [2022-03-16 23:12:49,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:13:01,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:13:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 532000 backedges. 0 proven. 523699 refuted. 0 times theorem prover too weak. 8301 trivial. 0 not checked. [2022-03-16 23:13:01,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:13:05,706 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:13:05,706 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:13:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 532000 backedges. 0 proven. 523699 refuted. 0 times theorem prover too weak. 8301 trivial. 0 not checked. [2022-03-16 23:13:07,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564625926] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:13:07,966 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:13:07,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 103, 103] total 206 [2022-03-16 23:13:07,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662759258] [2022-03-16 23:13:07,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:13:07,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 207 states [2022-03-16 23:13:07,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:13:07,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 207 interpolants. [2022-03-16 23:13:07,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=42128, Unknown=0, NotChecked=0, Total=42642 [2022-03-16 23:13:07,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:13:07,972 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:13:07,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 207 states, 207 states have (on average 6.338164251207729) internal successors, (1312), 206 states have internal predecessors, (1312), 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 23:13:07,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:13:07,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:13:07,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:13:07,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:13:07,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:13:07,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:13:07,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:13:07,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:13:07,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:13:29,399 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6136 transitions and produced 5507 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:13:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:13:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:13:29,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-16 23:13:29,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 23:13:29,600 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:13:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:13:29,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1091572791, now seen corresponding path program 10 times [2022-03-16 23:13:29,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:13:29,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396359202] [2022-03-16 23:13:29,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:13:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:13:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:13:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 647626 backedges. 0 proven. 638539 refuted. 0 times theorem prover too weak. 9087 trivial. 0 not checked. [2022-03-16 23:13:41,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:13:41,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396359202] [2022-03-16 23:13:41,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396359202] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:13:41,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782567987] [2022-03-16 23:13:41,690 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 23:13:41,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:13:41,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:13:41,694 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:13:41,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 23:13:42,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 23:13:42,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:13:43,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 5737 conjuncts, 224 conjunts are in the unsatisfiable core [2022-03-16 23:13:43,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:13:57,812 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:13:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 647626 backedges. 0 proven. 638443 refuted. 0 times theorem prover too weak. 9183 trivial. 0 not checked. [2022-03-16 23:13:57,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:14:02,167 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:14:02,167 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:14:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 647626 backedges. 0 proven. 638443 refuted. 0 times theorem prover too weak. 9183 trivial. 0 not checked. [2022-03-16 23:14:05,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782567987] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:14:05,364 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:14:05,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 113, 113] total 226 [2022-03-16 23:14:05,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017036458] [2022-03-16 23:14:05,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:14:05,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 227 states [2022-03-16 23:14:05,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:14:05,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 227 interpolants. [2022-03-16 23:14:05,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=50738, Unknown=0, NotChecked=0, Total=51302 [2022-03-16 23:14:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:05,369 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:14:05,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 227 states, 227 states have (on average 6.348017621145375) internal successors, (1441), 226 states have internal predecessors, (1441), 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 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:14:05,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:31,748 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6726 transitions and produced 6036 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:14:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:14:31,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 23:14:31,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 23:14:31,955 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:14:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:14:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1796434511, now seen corresponding path program 11 times [2022-03-16 23:14:31,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:14:31,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764434047] [2022-03-16 23:14:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:14:31,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:14:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:14:47,313 INFO L134 CoverageAnalysis]: Checked inductivity of 779571 backedges. 0 proven. 769584 refuted. 0 times theorem prover too weak. 9987 trivial. 0 not checked. [2022-03-16 23:14:47,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:14:47,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764434047] [2022-03-16 23:14:47,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764434047] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:14:47,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126578641] [2022-03-16 23:14:47,314 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 23:14:47,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:14:47,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:14:47,315 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:14:47,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 23:14:53,385 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 581 check-sat command(s) [2022-03-16 23:14:53,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:14:53,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 6287 conjuncts, 244 conjunts are in the unsatisfiable core [2022-03-16 23:14:53,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:15:11,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:15:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 779571 backedges. 0 proven. 769488 refuted. 0 times theorem prover too weak. 10083 trivial. 0 not checked. [2022-03-16 23:15:11,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:15:15,631 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:15:15,632 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:15:18,678 INFO L134 CoverageAnalysis]: Checked inductivity of 779571 backedges. 0 proven. 769488 refuted. 0 times theorem prover too weak. 10083 trivial. 0 not checked. [2022-03-16 23:15:18,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126578641] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:15:18,678 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:15:18,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 123, 123] total 246 [2022-03-16 23:15:18,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697898721] [2022-03-16 23:15:18,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:15:18,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 247 states [2022-03-16 23:15:18,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:15:18,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 247 interpolants. [2022-03-16 23:15:18,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=614, Invalid=60148, Unknown=0, NotChecked=0, Total=60762 [2022-03-16 23:15:18,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:15:18,686 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:15:18,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 247 states, 247 states have (on average 6.3603238866396765) internal successors, (1571), 246 states have internal predecessors, (1571), 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 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:15:18,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:15:18,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:15:18,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:15:18,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:15:51,508 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7316 transitions and produced 6565 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:15:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:15:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:15:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:15:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:15:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-16 23:15:51,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 23:15:51,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-16 23:15:51,712 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:15:51,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:15:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2081687375, now seen corresponding path program 12 times [2022-03-16 23:15:51,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:15:51,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774164520] [2022-03-16 23:15:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:15:51,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:16:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:16:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 923741 backedges. 0 proven. 912854 refuted. 0 times theorem prover too weak. 10887 trivial. 0 not checked. [2022-03-16 23:16:09,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:16:09,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774164520] [2022-03-16 23:16:09,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774164520] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:16:09,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539436938] [2022-03-16 23:16:09,928 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 23:16:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:16:09,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:16:09,929 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:16:09,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 23:16:18,992 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 625 check-sat command(s) [2022-03-16 23:16:18,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:16:19,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 6809 conjuncts, 264 conjunts are in the unsatisfiable core [2022-03-16 23:16:19,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:16:39,111 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:16:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 923741 backedges. 0 proven. 912758 refuted. 0 times theorem prover too weak. 10983 trivial. 0 not checked. [2022-03-16 23:16:39,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:16:44,709 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:16:44,709 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:16:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 923741 backedges. 0 proven. 912758 refuted. 0 times theorem prover too weak. 10983 trivial. 0 not checked. [2022-03-16 23:16:48,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539436938] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:16:48,849 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:16:48,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [134, 133, 133] total 266 [2022-03-16 23:16:48,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215637313] [2022-03-16 23:16:48,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:16:48,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-03-16 23:16:48,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:16:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-03-16 23:16:48,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=664, Invalid=70358, Unknown=0, NotChecked=0, Total=71022 [2022-03-16 23:16:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:16:48,856 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:16:48,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 267 states, 267 states have (on average 6.370786516853933) internal successors, (1701), 266 states have internal predecessors, (1701), 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 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-16 23:16:48,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:17:27,911 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7906 transitions and produced 7094 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-16 23:17:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-16 23:17:27,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 23:17:28,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-16 23:17:28,113 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:17:28,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:17:28,114 INFO L85 PathProgramCache]: Analyzing trace with hash -551838567, now seen corresponding path program 13 times [2022-03-16 23:17:28,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:17:28,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527379560] [2022-03-16 23:17:28,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:17:28,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:17:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:17:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1080136 backedges. 0 proven. 1068349 refuted. 0 times theorem prover too weak. 11787 trivial. 0 not checked. [2022-03-16 23:17:50,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:17:50,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527379560] [2022-03-16 23:17:50,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527379560] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:17:50,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219456519] [2022-03-16 23:17:50,425 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 23:17:50,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:17:50,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:17:50,426 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 23:17:50,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 23:17:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:17:52,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 7387 conjuncts, 284 conjunts are in the unsatisfiable core [2022-03-16 23:17:52,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:18:15,144 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 23:18:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1080136 backedges. 0 proven. 1068253 refuted. 0 times theorem prover too weak. 11883 trivial. 0 not checked. [2022-03-16 23:18:15,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:18:20,350 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-16 23:18:20,351 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-16 23:18:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1080136 backedges. 0 proven. 1068253 refuted. 0 times theorem prover too weak. 11883 trivial. 0 not checked. [2022-03-16 23:18:25,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219456519] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:18:25,189 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:18:25,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [144, 143, 143] total 286 [2022-03-16 23:18:25,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804015642] [2022-03-16 23:18:25,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:18:25,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 287 states [2022-03-16 23:18:25,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:18:25,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 287 interpolants. [2022-03-16 23:18:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=716, Invalid=81366, Unknown=0, NotChecked=0, Total=82082 [2022-03-16 23:18:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:18:25,197 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:18:25,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 287 states, 287 states have (on average 6.379790940766551) internal successors, (1831), 286 states have internal predecessors, (1831), 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 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2022-03-16 23:18:25,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:19:11,479 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8496 transitions and produced 7623 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-16 23:19:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 23:19:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-16 23:19:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-16 23:19:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-03-16 23:19:11,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-03-16 23:19:11,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:19:11,680 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 23:19:11,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:19:11,681 INFO L85 PathProgramCache]: Analyzing trace with hash -2028099993, now seen corresponding path program 14 times [2022-03-16 23:19:11,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:19:11,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745292734] [2022-03-16 23:19:11,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:19:11,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2022-03-16 23:19:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2022-03-16 23:19:25,238 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 23:19:25,238 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 23:19:25,307 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 23:19:25,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-16 23:19:25,308 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 3536 with TraceHistMax 786,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [745292734] and IpTcStrategyModuleZ3 [315399546]. [2022-03-16 23:19:25,309 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 23:19:25,309 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 23:19:25,314 INFO L732 BasicCegarLoop]: Path program histogram: [14] [2022-03-16 23:19:25,315 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 23:19:25,315 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 23:19:25,317 INFO L202 PluginConnector]: Adding new model queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 11:19:25 BasicIcfg [2022-03-16 23:19:25,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 23:19:25,317 INFO L158 Benchmark]: Toolchain (without parser) took 700662.72ms. Allocated memory was 184.5MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 142.0MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-03-16 23:19:25,318 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 23:19:25,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.39ms. Allocated memory is still 184.5MB. Free memory was 141.9MB in the beginning and 140.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 23:19:25,318 INFO L158 Benchmark]: Boogie Preprocessor took 19.41ms. Allocated memory is still 184.5MB. Free memory was 140.4MB in the beginning and 139.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 23:19:25,318 INFO L158 Benchmark]: RCFGBuilder took 250.79ms. Allocated memory is still 184.5MB. Free memory was 139.4MB in the beginning and 129.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 23:19:25,318 INFO L158 Benchmark]: TraceAbstraction took 700363.88ms. Allocated memory was 184.5MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 129.5MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-03-16 23:19:25,319 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 0.12ms. Allocated memory is still 184.5MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.39ms. Allocated memory is still 184.5MB. Free memory was 141.9MB in the beginning and 140.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.41ms. Allocated memory is still 184.5MB. Free memory was 140.4MB in the beginning and 139.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 250.79ms. Allocated memory is still 184.5MB. Free memory was 139.4MB in the beginning and 129.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 700363.88ms. Allocated memory was 184.5MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 129.5MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.3GB. 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 3536 with TraceHistMax 786,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [745292734] and IpTcStrategyModuleZ3 [315399546]. - 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 PartialOrderCegarLoop was analyzing trace of length 3536 with TraceHistMax 786,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [745292734] and IpTcStrategyModuleZ3 [315399546]. - 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 PartialOrderCegarLoop was analyzing trace of length 3536 with TraceHistMax 786,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [745292734] and IpTcStrategyModuleZ3 [315399546]. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 700.2s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 258.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1121, 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: 1.3s SsaConstructionTime, 78.2s SatisfiabilityAnalysisTime, 344.8s InterpolantComputationTime, 47226 NumberOfCodeBlocks, 47178 NumberOfCodeBlocksAsserted, 2456 NumberOfCheckSat, 70800 ConstructedInterpolants, 0 QuantifiedInterpolants, 563447 SizeOfPredicates, 41 NumberOfNonLiveVariables, 52922 ConjunctsInSsa, 3188 ConjunctsInUnsatCore, 39 InterpolantComputations, 0 PerfectInterpolantSequences, 240768/16022022 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