/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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 05:07:07,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 05:07:07,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 05:07:07,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 05:07:07,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 05:07:07,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 05:07:07,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 05:07:07,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 05:07:07,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 05:07:07,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 05:07:07,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 05:07:07,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 05:07:07,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 05:07:07,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 05:07:07,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 05:07:07,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 05:07:07,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 05:07:07,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 05:07:07,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 05:07:07,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 05:07:07,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 05:07:07,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 05:07:07,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 05:07:07,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 05:07:07,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 05:07:07,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 05:07:07,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 05:07:07,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 05:07:07,336 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-02 05:07:07,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 05:07:07,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 05:07:07,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 05:07:07,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 05:07:07,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 05:07:07,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 05:07:07,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 05:07:07,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 05:07:07,363 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 05:07:07,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 05:07:07,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 05:07:07,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 05:07:07,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 05:07:07,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 05:07:07,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 05:07:07,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 05:07:07,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 05:07:07,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 05:07:07,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 05:07:07,367 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 05:07:07,367 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 05:07:07,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 05:07:07,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 05:07:07,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 05:07:07,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 05:07:07,555 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 05:07:07,559 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 05:07:07,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-03-02 05:07:07,561 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-03-02 05:07:07,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 05:07:07,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 05:07:07,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 05:07:07,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 05:07:07,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 05:07:07,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,608 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 05:07:07,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 05:07:07,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 05:07:07,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 05:07:07,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 05:07:07,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 05:07:07,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 05:07:07,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 05:07:07,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 05:07:07,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/1) ... [2022-03-02 05:07:07,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 05:07:07,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:07,662 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) [2022-03-02 05:07:07,677 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 [2022-03-02 05:07:07,705 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 05:07:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 05:07:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 05:07:07,705 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 05:07:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 05:07:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 05:07:07,705 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 05:07:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 05:07:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 05:07:07,705 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 05:07:07,706 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 05:07:07,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 05:07:07,707 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 05:07:07,742 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 05:07:07,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 05:07:07,862 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 05:07:07,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 05:07:07,872 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 05:07:07,873 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 05:07:07 BoogieIcfgContainer [2022-03-02 05:07:07,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 05:07:07,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 05:07:07,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 05:07:07,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 05:07:07,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 05:07:07" (1/2) ... [2022-03-02 05:07:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714b21df and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 05:07:07, skipping insertion in model container [2022-03-02 05:07:07,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 05:07:07" (2/2) ... [2022-03-02 05:07:07,896 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-03-02 05:07:07,899 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 05:07:07,899 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 05:07:07,899 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 05:07:07,900 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 05:07:07,923 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 05:07:07,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 05:07:07,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:07,957 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) [2022-03-02 05:07:07,958 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 [2022-03-02 05:07:07,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 05:07:07,985 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=false, mMcrOverapproximateWrwc=true [2022-03-02 05:07:07,986 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 05:07:08,090 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-02 05:07:08,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:07:08,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:07:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-02 05:07:08,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:07:08,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822535075] [2022-03-02 05:07:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:07:08,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:07:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:07:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 05:07:08,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:07:08,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822535075] [2022-03-02 05:07:08,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822535075] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:07:08,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209775670] [2022-03-02 05:07:08,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:07:08,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:07:08,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:08,369 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) [2022-03-02 05:07:08,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 05:07:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:07:08,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-02 05:07:08,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:07:08,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 05:07:08,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:07:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 05:07:08,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209775670] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:07:08,788 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:07:08,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-02 05:07:08,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102728606] [2022-03-02 05:07:08,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:07:08,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-02 05:07:08,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:07:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-02 05:07:08,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-02 05:07:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:08,824 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:07:08,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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) [2022-03-02 05:07:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:09,274 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-02 05:07:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:09,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 05:07:09,488 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 [2022-03-02 05:07:09,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:07:09,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:07:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-02 05:07:09,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:07:09,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993365232] [2022-03-02 05:07:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:07:09,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:07:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:07:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:09,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:07:09,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993365232] [2022-03-02 05:07:09,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993365232] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:07:09,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137318864] [2022-03-02 05:07:09,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 05:07:09,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:07:09,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:09,588 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) [2022-03-02 05:07:09,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 05:07:09,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 05:07:09,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:07:09,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-02 05:07:09,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:07:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:09,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:07:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:09,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137318864] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:07:09,923 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:07:09,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-02 05:07:09,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110866698] [2022-03-02 05:07:09,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:07:09,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-02 05:07:09,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:07:09,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-02 05:07:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-02 05:07:09,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:09,928 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:07:09,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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) [2022-03-02 05:07:09,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:09,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:10,240 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-02 05:07:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:07:10,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 05:07:10,441 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 [2022-03-02 05:07:10,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:07:10,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:07:10,442 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-02 05:07:10,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:07:10,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522413749] [2022-03-02 05:07:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:07:10,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:07:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:07:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:10,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:07:10,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522413749] [2022-03-02 05:07:10,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522413749] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:07:10,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727717575] [2022-03-02 05:07:10,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 05:07:10,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:07:10,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:10,923 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) [2022-03-02 05:07:10,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 05:07:10,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-02 05:07:10,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:07:10,983 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-02 05:07:10,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:07:11,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:11,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:11,683 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 05:07:11,685 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-03-02 05:07:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:11,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:07:12,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:12,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:12,567 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-02 05:07:12,567 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-03-02 05:07:12,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:12,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:12,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:12,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:12,715 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-03-02 05:07:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:12,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727717575] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:07:12,830 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:07:12,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-02 05:07:12,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416093381] [2022-03-02 05:07:12,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:07:12,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-02 05:07:12,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:07:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-02 05:07:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-02 05:07:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:12,832 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:07:12,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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) [2022-03-02 05:07:12,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:12,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:07:12,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:20,597 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-02 05:07:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:07:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:07:20,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 05:07:20,798 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 [2022-03-02 05:07:20,799 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:07:20,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:07:20,800 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-02 05:07:20,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:07:20,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749380629] [2022-03-02 05:07:20,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:07:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:07:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:07:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:21,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:07:21,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749380629] [2022-03-02 05:07:21,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749380629] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:07:21,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154750928] [2022-03-02 05:07:21,372 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 05:07:21,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:07:21,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:21,374 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) [2022-03-02 05:07:21,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 05:07:21,402 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 05:07:21,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:07:21,404 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-02 05:07:21,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:07:22,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:22,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:22,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:22,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:22,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:22,075 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2022-03-02 05:07:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:22,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:07:22,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:22,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:22,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:23,044 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-02 05:07:23,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 50 treesize of output 313 [2022-03-02 05:07:39,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,038 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:39,092 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 05:07:39,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-03-02 05:07:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:39,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154750928] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:07:39,513 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:07:39,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-02 05:07:39,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391669732] [2022-03-02 05:07:39,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:07:39,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-02 05:07:39,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:07:39,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-02 05:07:39,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-02 05:07:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:39,514 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:07:39,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 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) [2022-03-02 05:07:39,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:39,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:07:39,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:07:39,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:07:48,310 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-02 05:07:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:07:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:07:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:07:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:07:48,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 05:07:48,511 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 [2022-03-02 05:07:48,512 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:07:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:07:48,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-02 05:07:48,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:07:48,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435223407] [2022-03-02 05:07:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:07:48,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:07:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:07:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:49,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:07:49,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435223407] [2022-03-02 05:07:49,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435223407] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:07:49,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691878377] [2022-03-02 05:07:49,043 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 05:07:49,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:07:49,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:07:49,046 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) [2022-03-02 05:07:49,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 05:07:49,081 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-02 05:07:49,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:07:49,083 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-02 05:07:49,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:07:50,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:50,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:50,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:07:50,318 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-02 05:07:50,319 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-03-02 05:07:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:07:50,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:07:51,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:51,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:07:52,053 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 05:07:52,054 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-03-02 05:14:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:13,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691878377] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:14:13,667 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:14:13,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-02 05:14:13,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963175223] [2022-03-02 05:14:13,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:14:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-02 05:14:13,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:14:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-02 05:14:13,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-02 05:14:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:13,671 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:14:13,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 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) [2022-03-02 05:14:13,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:13,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:13,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:13,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:13,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:21,542 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-02 05:14:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-02 05:14:21,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 05:14:21,743 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 [2022-03-02 05:14:21,743 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:14:21,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:14:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-02 05:14:21,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:14:21,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553370821] [2022-03-02 05:14:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:14:21,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:14:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:14:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:21,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:14:21,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553370821] [2022-03-02 05:14:21,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553370821] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:14:21,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008964600] [2022-03-02 05:14:21,921 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 05:14:21,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:14:21,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:14:21,922 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) [2022-03-02 05:14:21,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 05:14:21,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-02 05:14:21,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:14:21,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-02 05:14:21,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:14:22,267 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:22,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:14:22,621 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:22,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008964600] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:14:22,621 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:14:22,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-02 05:14:22,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538016336] [2022-03-02 05:14:22,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:14:22,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-02 05:14:22,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:14:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-02 05:14:22,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-02 05:14:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:22,623 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:14:22,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 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) [2022-03-02 05:14:22,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:22,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:22,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:22,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:22,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-02 05:14:22,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:23,959 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-02 05:14:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-02 05:14:23,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-02 05:14:23,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-02 05:14:24,173 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 [2022-03-02 05:14:24,174 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:14:24,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:14:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-02 05:14:24,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:14:24,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193761181] [2022-03-02 05:14:24,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:14:24,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:14:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:14:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:24,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:14:24,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193761181] [2022-03-02 05:14:24,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193761181] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:14:24,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601851209] [2022-03-02 05:14:24,391 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 05:14:24,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:14:24,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:14:24,392 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) [2022-03-02 05:14:24,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 05:14:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:14:24,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-02 05:14:24,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:14:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 05:14:24,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:14:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 05:14:25,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601851209] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:14:25,090 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:14:25,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-02 05:14:25,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719399582] [2022-03-02 05:14:25,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:14:25,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-02 05:14:25,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:14:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-02 05:14:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-02 05:14:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:25,092 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:14:25,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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) [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-02 05:14:25,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:28,929 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-02 05:14:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-02 05:14:28,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-02 05:14:29,146 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 [2022-03-02 05:14:29,147 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:14:29,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:14:29,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-02 05:14:29,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:14:29,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079890934] [2022-03-02 05:14:29,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:14:29,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:14:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:14:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:29,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:14:29,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079890934] [2022-03-02 05:14:29,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079890934] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:14:29,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526461499] [2022-03-02 05:14:29,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 05:14:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:14:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:14:29,397 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) [2022-03-02 05:14:29,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 05:14:29,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 05:14:29,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:14:29,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-02 05:14:29,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:14:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 05:14:29,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:14:30,158 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 05:14:30,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526461499] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:14:30,159 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:14:30,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-02 05:14:30,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392814101] [2022-03-02 05:14:30,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:14:30,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-02 05:14:30,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:14:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-02 05:14:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-02 05:14:30,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:30,161 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:14:30,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 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) [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-02 05:14:30,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:31,011 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-02 05:14:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 05:14:31,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 05:14:31,212 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 [2022-03-02 05:14:31,212 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:14:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:14:31,212 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-02 05:14:31,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:14:31,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580123450] [2022-03-02 05:14:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:14:31,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:14:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:14:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:31,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:14:31,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580123450] [2022-03-02 05:14:31,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580123450] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:14:31,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190109119] [2022-03-02 05:14:31,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 05:14:31,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:14:31,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:14:31,439 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) [2022-03-02 05:14:31,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 05:14:31,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-02 05:14:31,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:14:31,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-02 05:14:31,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:14:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:31,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:14:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:32,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190109119] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 05:14:32,172 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 05:14:32,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-02 05:14:32,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696226049] [2022-03-02 05:14:32,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 05:14:32,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-02 05:14:32,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 05:14:32,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-02 05:14:32,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-02 05:14:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:32,175 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 05:14:32,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 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) [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 05:14:32,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 05:14:32,833 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-02 05:14:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 05:14:32,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-02 05:14:32,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 05:14:33,034 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 [2022-03-02 05:14:33,035 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 05:14:33,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 05:14:33,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-02 05:14:33,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 05:14:33,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141919128] [2022-03-02 05:14:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 05:14:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 05:14:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 05:14:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:34,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 05:14:34,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141919128] [2022-03-02 05:14:34,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141919128] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 05:14:34,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653634890] [2022-03-02 05:14:34,054 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 05:14:34,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 05:14:34,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 05:14:34,055 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) [2022-03-02 05:14:34,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 05:14:34,093 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 05:14:34,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 05:14:34,094 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-02 05:14:34,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 05:14:35,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:35,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 05:14:35,865 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-03-02 05:14:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 05:14:35,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 05:14:37,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:37,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 05:14:42,396 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-02 05:14:42,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-03-02 05:21:29,077 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 [2022-03-02 05:21:29,087 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 [2022-03-02 05:21:29,077 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 05:21:29,128 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 05:21:29,129 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 05:21:29,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-03-02 05:21:29,347 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 [2022-03-02 05:21:29,347 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. [2022-03-02 05:21:29,372 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 05:21:29,372 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 05:21:29,373 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 05:21:29,377 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-02 05:21:29,382 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 05:21:29,382 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 05:21:29,385 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 05:21:29 BasicIcfg [2022-03-02 05:21:29,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 05:21:29,386 INFO L158 Benchmark]: Toolchain (without parser) took 861801.01ms. Allocated memory was 173.0MB in the beginning and 684.7MB in the end (delta: 511.7MB). Free memory was 131.6MB in the beginning and 611.0MB in the end (delta: -479.4MB). Peak memory consumption was 456.1MB. Max. memory is 8.0GB. [2022-03-02 05:21:29,386 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 132.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 05:21:29,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.54ms. Allocated memory is still 173.0MB. Free memory was 131.6MB in the beginning and 130.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 05:21:29,387 INFO L158 Benchmark]: Boogie Preprocessor took 12.44ms. Allocated memory is still 173.0MB. Free memory was 130.2MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 05:21:29,387 INFO L158 Benchmark]: RCFGBuilder took 248.31ms. Allocated memory is still 173.0MB. Free memory was 129.1MB in the beginning and 119.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-02 05:21:29,387 INFO L158 Benchmark]: TraceAbstraction took 861510.60ms. Allocated memory was 173.0MB in the beginning and 684.7MB in the end (delta: 511.7MB). Free memory was 119.2MB in the beginning and 611.0MB in the end (delta: -491.8MB). Peak memory consumption was 444.5MB. Max. memory is 8.0GB. [2022-03-02 05:21:29,388 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 0.13ms. Allocated memory is still 173.0MB. Free memory is still 132.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.54ms. Allocated memory is still 173.0MB. Free memory was 131.6MB in the beginning and 130.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.44ms. Allocated memory is still 173.0MB. Free memory was 130.2MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 248.31ms. Allocated memory is still 173.0MB. Free memory was 129.1MB in the beginning and 119.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 861510.60ms. Allocated memory was 173.0MB in the beginning and 684.7MB in the end (delta: 511.7MB). Free memory was 119.2MB in the beginning and 611.0MB in the end (delta: -491.8MB). Peak memory consumption was 444.5MB. 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - TimeoutResultAtElement [Line: 59]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - TimeoutResultAtElement [Line: 59]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - TimeoutResultAtElement [Line: 60]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 861.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 32.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 410.5s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 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