/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 04:12:18,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 04:12:18,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 04:12:18,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 04:12:18,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 04:12:18,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 04:12:18,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 04:12:18,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 04:12:18,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 04:12:18,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 04:12:18,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 04:12:18,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 04:12:18,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 04:12:18,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 04:12:18,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 04:12:18,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 04:12:18,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 04:12:18,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 04:12:18,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 04:12:18,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 04:12:18,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 04:12:18,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 04:12:18,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 04:12:18,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 04:12:18,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 04:12:18,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 04:12:18,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 04:12:18,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 04:12:18,773 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.epf [2022-02-20 04:12:18,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 04:12:18,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 04:12:18,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 04:12:18,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 04:12:18,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 04:12:18,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 04:12:18,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 04:12:18,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 04:12:18,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 04:12:18,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 04:12:18,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 04:12:18,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 04:12:18,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 04:12:18,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 04:12:18,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:12:18,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 04:12:18,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 04:12:18,801 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 04:12:18,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 04:12:18,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 04:12:18,801 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 04:12:18,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 04:12:18,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 04:12:18,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 04:12:18,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 04:12:18,989 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 04:12:18,991 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 04:12:18,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl [2022-02-20 04:12:18,992 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2022-02-20 04:12:19,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 04:12:19,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 04:12:19,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 04:12:19,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 04:12:19,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 04:12:19,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,031 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 04:12:19,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 04:12:19,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 04:12:19,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 04:12:19,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 04:12:19,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 04:12:19,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 04:12:19,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 04:12:19,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 04:12:19,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/1) ... [2022-02-20 04:12:19,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:12:19,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:12:19,087 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) [2022-02-20 04:12:19,094 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 [2022-02-20 04:12:19,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 04:12:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 04:12:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 04:12:19,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 04:12:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 04:12:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 04:12:19,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 04:12:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 04:12:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 04:12:19,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 04:12:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 04:12:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 04:12:19,119 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 04:12:19,159 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 04:12:19,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 04:12:19,309 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 04:12:19,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 04:12:19,342 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 04:12:19,343 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:12:19 BoogieIcfgContainer [2022-02-20 04:12:19,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 04:12:19,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 04:12:19,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 04:12:19,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 04:12:19,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:12:19" (1/2) ... [2022-02-20 04:12:19,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c0354 and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:12:19, skipping insertion in model container [2022-02-20 04:12:19,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:12:19" (2/2) ... [2022-02-20 04:12:19,363 INFO L111 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2022-02-20 04:12:19,366 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 04:12:19,366 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 04:12:19,367 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 04:12:19,367 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 04:12:19,409 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-20 04:12:19,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 04:12:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:12:19,439 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) [2022-02-20 04:12:19,440 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 [2022-02-20 04:12:19,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 04:12:19,475 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 04:12:19,476 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 04:12:19,651 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1437 transitions and produced 1133 states. [2022-02-20 04:12:19,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:12:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:12:19,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1283135019, now seen corresponding path program 1 times [2022-02-20 04:12:19,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:12:19,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479585588] [2022-02-20 04:12:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:12:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:12:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:12:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 0 proven. 9464 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-02-20 04:12:24,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:12:24,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479585588] [2022-02-20 04:12:24,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479585588] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:12:24,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450165511] [2022-02-20 04:12:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:12:24,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:12:24,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:12:24,363 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) [2022-02-20 04:12:24,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 04:12:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:12:24,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-20 04:12:24,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:12:28,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:12:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:29,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-02-20 04:12:29,570 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 04:12:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 2 proven. 9456 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-02-20 04:12:29,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:12:30,076 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:12:30,077 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-20 04:12:33,822 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-02-20 04:12:33,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 290 treesize of output 306 [2022-02-20 04:12:33,840 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-20 04:12:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 8 proven. 9450 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-02-20 04:12:37,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450165511] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:12:37,624 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:12:37,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 79 [2022-02-20 04:12:37,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784248440] [2022-02-20 04:12:37,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:12:37,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-20 04:12:37,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:12:37,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-20 04:12:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=6025, Unknown=0, NotChecked=0, Total=6320 [2022-02-20 04:12:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:12:37,659 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:12:37,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.7) internal successors, (296), 79 states have internal predecessors, (296), 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) [2022-02-20 04:12:37,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:12:40,774 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1650 transitions and produced 1294 states. [2022-02-20 04:12:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:12:40,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 04:12:40,993 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 [2022-02-20 04:12:40,994 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:12:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:12:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1476071990, now seen corresponding path program 2 times [2022-02-20 04:12:40,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:12:40,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404670442] [2022-02-20 04:12:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:12:40,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:12:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:12:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 0 proven. 12629 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-02-20 04:12:44,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:12:44,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404670442] [2022-02-20 04:12:44,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404670442] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:12:44,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195628161] [2022-02-20 04:12:44,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:12:44,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:12:44,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:12:44,460 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) [2022-02-20 04:12:44,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 04:12:44,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:12:44,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:12:44,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-20 04:12:44,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:12:48,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:12:48,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:12:48,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-02-20 04:12:49,277 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 04:12:49,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 2 proven. 12607 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-02-20 04:12:49,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:12:49,908 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:12:49,908 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-20 04:12:52,779 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-20 04:12:52,918 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-02-20 04:12:52,918 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 282 treesize of output 300 [2022-02-20 04:12:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 14 proven. 12595 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-02-20 04:12:58,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195628161] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:12:58,525 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:12:58,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38, 38] total 78 [2022-02-20 04:12:58,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745276512] [2022-02-20 04:12:58,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:12:58,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-02-20 04:12:58,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:12:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-02-20 04:12:58,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=5855, Unknown=0, NotChecked=0, Total=6162 [2022-02-20 04:12:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:12:58,529 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:12:58,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.721518987341772) internal successors, (294), 78 states have internal predecessors, (294), 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) [2022-02-20 04:12:58,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:12:58,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:13:01,371 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1702 transitions and produced 1330 states. [2022-02-20 04:13:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:13:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:13:01,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 04:13:01,573 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 [2022-02-20 04:13:01,574 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:13:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:13:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 779500249, now seen corresponding path program 3 times [2022-02-20 04:13:01,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:13:01,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848132370] [2022-02-20 04:13:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:13:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:13:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:13:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 0 proven. 13302 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2022-02-20 04:13:04,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:13:04,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848132370] [2022-02-20 04:13:04,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848132370] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:13:04,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099835567] [2022-02-20 04:13:04,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:13:04,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:13:04,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:13:04,103 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) [2022-02-20 04:13:04,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 04:13:04,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 67 check-sat command(s) [2022-02-20 04:13:04,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:13:04,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 137 conjunts are in the unsatisfiable core [2022-02-20 04:13:04,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:13:08,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:13:08,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:08,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 31 [2022-02-20 04:13:09,435 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 04:13:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 2 proven. 13278 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-02-20 04:13:09,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:13:10,216 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:13:10,216 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-20 04:13:12,640 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-20 04:13:12,790 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-02-20 04:13:12,791 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 241 treesize of output 279 [2022-02-20 04:13:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 28 proven. 13252 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-02-20 04:13:15,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099835567] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:13:15,655 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:13:15,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 78 [2022-02-20 04:13:15,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786244565] [2022-02-20 04:13:15,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:13:15,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-02-20 04:13:15,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:13:15,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-02-20 04:13:15,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=5834, Unknown=0, NotChecked=0, Total=6162 [2022-02-20 04:13:15,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:13:15,658 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:13:15,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.6835443037974684) internal successors, (291), 78 states have internal predecessors, (291), 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) [2022-02-20 04:13:15,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:13:15,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:13:15,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:13:18,222 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1754 transitions and produced 1360 states. [2022-02-20 04:13:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:13:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:13:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-20 04:13:18,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 04:13:18,425 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 [2022-02-20 04:13:18,425 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:13:18,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:13:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash -99098674, now seen corresponding path program 4 times [2022-02-20 04:13:18,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:13:18,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899845044] [2022-02-20 04:13:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:13:18,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:13:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:13:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 0 proven. 14096 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-02-20 04:13:20,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:13:20,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899845044] [2022-02-20 04:13:20,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899845044] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:13:20,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075050118] [2022-02-20 04:13:20,871 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:13:20,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:13:20,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:13:20,872 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) [2022-02-20 04:13:20,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 04:13:21,079 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:13:21,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:13:21,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-20 04:13:21,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:13:24,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:13:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:24,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-02-20 04:13:25,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 04:13:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 1 proven. 14095 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-02-20 04:13:25,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:13:26,279 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:13:26,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-20 04:13:28,959 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-02-20 04:13:28,960 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 342 treesize of output 332 [2022-02-20 04:13:28,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-02-20 04:13:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 50 proven. 14046 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-02-20 04:13:33,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075050118] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:13:33,703 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:13:33,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 77 [2022-02-20 04:13:33,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446870117] [2022-02-20 04:13:33,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:13:33,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-20 04:13:33,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:13:33,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-20 04:13:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=5676, Unknown=0, NotChecked=0, Total=6006 [2022-02-20 04:13:33,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:13:33,706 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:13:33,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.858974358974359) internal successors, (301), 77 states have internal predecessors, (301), 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) [2022-02-20 04:13:33,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:13:33,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:13:33,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-02-20 04:13:33,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:13:36,722 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1807 transitions and produced 1361 states. [2022-02-20 04:13:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:13:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:13:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-20 04:13:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-20 04:13:36,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 04:13:36,923 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 [2022-02-20 04:13:36,923 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:13:36,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:13:36,924 INFO L85 PathProgramCache]: Analyzing trace with hash 632818543, now seen corresponding path program 5 times [2022-02-20 04:13:36,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:13:36,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243288083] [2022-02-20 04:13:36,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:13:36,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:13:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:13:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 0 proven. 14810 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-02-20 04:13:40,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:13:40,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243288083] [2022-02-20 04:13:40,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243288083] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:13:40,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457054549] [2022-02-20 04:13:40,375 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:13:40,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:13:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:13:40,376 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) [2022-02-20 04:13:40,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 04:13:42,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 74 check-sat command(s) [2022-02-20 04:13:42,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:13:42,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 95 conjunts are in the unsatisfiable core [2022-02-20 04:13:42,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:13:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:13:50,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:13:50,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 78 disjoint index pairs (out of 91 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-02-20 04:13:51,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 04:13:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 2 proven. 14802 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-02-20 04:13:51,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:13:51,652 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:13:51,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-20 04:13:57,819 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-02-20 04:13:58,177 INFO L353 Elim1Store]: treesize reduction 902, result has 13.4 percent of original size [2022-02-20 04:13:58,177 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 601 treesize of output 515 [2022-02-20 04:14:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 68 proven. 14736 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-02-20 04:14:12,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457054549] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:14:12,382 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:14:12,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54, 54] total 108 [2022-02-20 04:14:12,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707097347] [2022-02-20 04:14:12,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:14:12,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-02-20 04:14:12,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:14:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-02-20 04:14:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=11261, Unknown=0, NotChecked=0, Total=11772 [2022-02-20 04:14:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:14:12,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:14:12,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 3.853211009174312) internal successors, (420), 108 states have internal predecessors, (420), 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) [2022-02-20 04:14:12,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:14:12,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:14:12,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-02-20 04:14:12,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-20 04:14:12,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:14:16,944 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2028 transitions and produced 1526 states. [2022-02-20 04:14:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-20 04:14:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:14:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-20 04:14:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-20 04:14:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:14:16,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 04:14:17,145 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 [2022-02-20 04:14:17,146 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:14:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:14:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash 168630964, now seen corresponding path program 6 times [2022-02-20 04:14:17,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:14:17,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226220017] [2022-02-20 04:14:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:14:17,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:14:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:14:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 0 proven. 18749 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked. [2022-02-20 04:14:21,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:14:21,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226220017] [2022-02-20 04:14:21,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226220017] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:14:21,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11827821] [2022-02-20 04:14:21,480 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:14:21,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:14:21,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:14:21,481 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) [2022-02-20 04:14:21,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 04:14:23,159 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 81 check-sat command(s) [2022-02-20 04:14:23,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:14:23,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 188 conjunts are in the unsatisfiable core [2022-02-20 04:14:23,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:17:54,905 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-02-20 04:17:54,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 882 treesize of output 872 [2022-02-20 04:20:08,059 INFO L353 Elim1Store]: treesize reduction 31392, result has 0.0 percent of original size [2022-02-20 04:20:08,061 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 73 select indices, 73 select index equivalence classes, 0 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 2628 case distinctions, treesize of input 515 treesize of output 223 [2022-02-20 04:20:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 1124 proven. 19116 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-20 04:20:08,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-02-20 04:25:37,019 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-20 04:25:37,021 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-20 04:25:37,040 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 [2022-02-20 04:25:37,045 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:25:37,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 04:25:37,045 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 [2022-02-20 04:25:37,227 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 [2022-02-20 04:25:37,230 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 11ms.. [2022-02-20 04:25:37,232 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-20 04:25:37,232 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-20 04:25:37,232 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-20 04:25:37,237 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-02-20 04:25:37,238 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:25:37,238 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:25:37,240 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:25:37 BasicIcfg [2022-02-20 04:25:37,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:25:37,240 INFO L158 Benchmark]: Toolchain (without parser) took 798230.30ms. Allocated memory was 211.8MB in the beginning and 698.4MB in the end (delta: 486.5MB). Free memory was 171.2MB in the beginning and 334.3MB in the end (delta: -163.1MB). Peak memory consumption was 472.6MB. Max. memory is 8.0GB. [2022-02-20 04:25:37,240 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.08ms. Allocated memory is still 211.8MB. Free memory is still 172.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:25:37,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.77ms. Allocated memory is still 211.8MB. Free memory was 171.1MB in the beginning and 169.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:25:37,241 INFO L158 Benchmark]: Boogie Preprocessor took 25.26ms. Allocated memory is still 211.8MB. Free memory was 169.5MB in the beginning and 168.6MB in the end (delta: 954.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:25:37,241 INFO L158 Benchmark]: RCFGBuilder took 284.05ms. Allocated memory is still 211.8MB. Free memory was 168.5MB in the beginning and 157.6MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-20 04:25:37,241 INFO L158 Benchmark]: TraceAbstraction took 797895.50ms. Allocated memory was 211.8MB in the beginning and 698.4MB in the end (delta: 486.5MB). Free memory was 157.1MB in the beginning and 334.3MB in the end (delta: -177.3MB). Peak memory consumption was 459.0MB. Max. memory is 8.0GB. [2022-02-20 04:25:37,242 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 0.08ms. Allocated memory is still 211.8MB. Free memory is still 172.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.77ms. Allocated memory is still 211.8MB. Free memory was 171.1MB in the beginning and 169.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.26ms. Allocated memory is still 211.8MB. Free memory was 169.5MB in the beginning and 168.6MB in the end (delta: 954.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 284.05ms. Allocated memory is still 211.8MB. Free memory was 168.5MB in the beginning and 157.6MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 797895.50ms. Allocated memory was 211.8MB in the beginning and 698.4MB in the end (delta: 486.5MB). Free memory was 157.1MB in the beginning and 334.3MB in the end (delta: -177.3MB). Peak memory consumption was 459.0MB. 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: 102]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 11ms.. - TimeoutResultAtElement [Line: 95]: 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 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 11ms.. - TimeoutResultAtElement [Line: 95]: 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 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 11ms.. - TimeoutResultAtElement [Line: 96]: 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 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 11ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 797.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 16.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 181, 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: 0.3s SsaConstructionTime, 12.1s SatisfiabilityAnalysisTime, 87.6s InterpolantComputationTime, 4748 NumberOfCodeBlocks, 4748 NumberOfCodeBlocksAsserted, 150 NumberOfCheckSat, 7107 ConstructedInterpolants, 312 QuantifiedInterpolants, 112821 SizeOfPredicates, 65 NumberOfNonLiveVariables, 4697 ConjunctsInSsa, 433 ConjunctsInUnsatCore, 15 InterpolantComputations, 0 PerfectInterpolantSequences, 21057/213675 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