/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-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 04:40:07,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 04:40:07,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 04:40:07,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 04:40:07,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 04:40:07,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 04:40:07,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 04:40:07,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 04:40:07,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 04:40:07,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 04:40:07,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 04:40:07,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 04:40:07,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 04:40:07,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 04:40:07,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 04:40:07,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 04:40:07,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 04:40:07,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 04:40:07,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 04:40:07,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 04:40:07,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 04:40:07,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 04:40:07,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 04:40:07,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 04:40:07,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 04:40:07,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 04:40:07,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 04:40:07,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 04:40:07,781 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 04:40:07,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 04:40:07,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 04:40:07,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 04:40:07,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 04:40:07,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 04:40:07,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 04:40:07,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 04:40:07,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 04:40:07,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 04:40:07,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 04:40:07,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 04:40:07,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:40:07,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 04:40:07,809 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 04:40:07,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 04:40:08,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 04:40:08,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 04:40:08,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 04:40:08,024 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 04:40:08,025 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 04:40:08,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2022-02-20 04:40:08,026 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2022-02-20 04:40:08,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 04:40:08,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 04:40:08,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 04:40:08,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 04:40:08,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 04:40:08,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,070 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 04:40:08,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 04:40:08,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 04:40:08,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 04:40:08,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 04:40:08,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 04:40:08,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 04:40:08,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 04:40:08,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 04:40:08,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/1) ... [2022-02-20 04:40:08,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:40:08,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:08,112 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 04:40:08,121 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 04:40:08,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 04:40:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 04:40:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 04:40:08,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 04:40:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 04:40:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 04:40:08,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 04:40:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 04:40:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 04:40:08,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 04:40:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 04:40:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 04:40:08,141 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 04:40:08,174 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 04:40:08,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 04:40:08,242 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 04:40:08,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 04:40:08,252 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 04:40:08,253 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:40:08 BoogieIcfgContainer [2022-02-20 04:40:08,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 04:40:08,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 04:40:08,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 04:40:08,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 04:40:08,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:40:08" (1/2) ... [2022-02-20 04:40:08,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b693c2f and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:40:08, skipping insertion in model container [2022-02-20 04:40:08,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:40:08" (2/2) ... [2022-02-20 04:40:08,258 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2022-02-20 04:40:08,262 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 04:40:08,262 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 04:40:08,262 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 04:40:08,262 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 04:40:08,301 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-20 04:40:08,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 04:40:08,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:08,332 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 04:40:08,353 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 04:40:08,362 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 04:40:08,372 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 04:40:08,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 04:40:08,457 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-02-20 04:40:08,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:40:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:40:08,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-02-20 04:40:08,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:40:08,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530158694] [2022-02-20 04:40:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:40:08,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:40:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:40:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-20 04:40:08,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:40:08,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530158694] [2022-02-20 04:40:08,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530158694] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:40:08,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565174913] [2022-02-20 04:40:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:40:08,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:40:08,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:08,685 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 04:40:08,724 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 04:40:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:40:08,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-20 04:40:08,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:40:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:40:08,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:40:09,171 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:40:09,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565174913] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:40:09,172 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:40:09,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-02-20 04:40:09,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884033850] [2022-02-20 04:40:09,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:40:09,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-20 04:40:09,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:40:09,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-20 04:40:09,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-02-20 04:40:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:09,201 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:40:09,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:40:09,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:09,669 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-02-20 04:40:09,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:09,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 04:40:09,886 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 04:40:09,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:40:09,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:40:09,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-02-20 04:40:09,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:40:09,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267064222] [2022-02-20 04:40:09,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:40:09,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:40:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:40:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:09,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:40:09,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267064222] [2022-02-20 04:40:09,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267064222] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:40:09,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737464748] [2022-02-20 04:40:09,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:40:09,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:40:09,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:09,998 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 04:40:09,999 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 04:40:10,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:40:10,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:40:10,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-20 04:40:10,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:40:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:10,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:40:10,348 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:10,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737464748] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:40:10,349 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:40:10,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-20 04:40:10,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557881098] [2022-02-20 04:40:10,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:40:10,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-20 04:40:10,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:40:10,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-20 04:40:10,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-20 04:40:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:10,351 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:40:10,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:40:10,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:10,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:10,672 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-02-20 04:40:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:40:10,692 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 04:40:10,873 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 04:40:10,874 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:40:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:40:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-02-20 04:40:10,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:40:10,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585647689] [2022-02-20 04:40:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:40:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:40:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:40:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:11,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:40:11,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585647689] [2022-02-20 04:40:11,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585647689] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:40:11,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803411697] [2022-02-20 04:40:11,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:40:11,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:40:11,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:11,430 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 04:40:11,431 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 04:40:11,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-20 04:40:11,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:40:11,466 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-20 04:40:11,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:40:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:12,093 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:40:12,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-02-20 04:40:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:12,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:40:12,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:12,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:12,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:12,936 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-02-20 04:40:12,936 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-02-20 04:40:13,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:13,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:13,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:13,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:13,073 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-02-20 04:40:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:13,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803411697] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:40:13,201 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:40:13,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-02-20 04:40:13,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273382229] [2022-02-20 04:40:13,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:40:13,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-20 04:40:13,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:40:13,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-20 04:40:13,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-02-20 04:40:13,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:13,203 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:40:13,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:40:13,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:13,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:40:13,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:21,199 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-02-20 04:40:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:40:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:40:21,219 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 04:40:21,407 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 04:40:21,408 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:40:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:40:21,408 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-02-20 04:40:21,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:40:21,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536749289] [2022-02-20 04:40:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:40:21,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:40:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:40:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:21,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:40:21,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536749289] [2022-02-20 04:40:21,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536749289] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:40:21,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087932476] [2022-02-20 04:40:21,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:40:21,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:40:21,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:21,879 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 04:40:21,880 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 04:40:21,906 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:40:21,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:40:21,907 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-02-20 04:40:21,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:40:22,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:22,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:22,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:22,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:22,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:22,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2022-02-20 04:40:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:22,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:40:23,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:23,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:23,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:23,615 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-02-20 04:40:23,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 50 treesize of output 313 [2022-02-20 04:40:38,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:38,670 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:40:38,670 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-02-20 04:40:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:39,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087932476] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:40:39,075 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:40:39,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-02-20 04:40:39,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769716890] [2022-02-20 04:40:39,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:40:39,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-20 04:40:39,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:40:39,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-20 04:40:39,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-02-20 04:40:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:39,077 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:40:39,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:40:39,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:39,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:40:39,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:40:39,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:40:47,923 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-02-20 04:40:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:40:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:40:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:40:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:40:47,942 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 04:40:48,127 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 04:40:48,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:40:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:40:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-02-20 04:40:48,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:40:48,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015680838] [2022-02-20 04:40:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:40:48,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:40:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:40:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:48,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:40:48,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015680838] [2022-02-20 04:40:48,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015680838] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:40:48,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46879335] [2022-02-20 04:40:48,631 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:40:48,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:40:48,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:40:48,633 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 04:40:48,633 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 04:40:48,666 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-20 04:40:48,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:40:48,667 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-20 04:40:48,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:40:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:40:49,845 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-02-20 04:40:49,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-02-20 04:40:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:40:49,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:40:51,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:40:51,506 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:40:51,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-02-20 04:46:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:38,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46879335] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:46:38,366 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:46:38,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-02-20 04:46:38,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54964796] [2022-02-20 04:46:38,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:46:38,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-20 04:46:38,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:46:38,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-20 04:46:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-02-20 04:46:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:38,368 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:46:38,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:46:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:45,834 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-02-20 04:46:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:46:45,870 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 04:46:46,067 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 04:46:46,068 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:46:46,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:46:46,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-02-20 04:46:46,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:46:46,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301771787] [2022-02-20 04:46:46,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:46:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:46:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:46:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:46,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:46:46,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301771787] [2022-02-20 04:46:46,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301771787] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:46:46,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175312512] [2022-02-20 04:46:46,212 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:46:46,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:46:46,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:46:46,213 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 04:46:46,214 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 04:46:46,246 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-02-20 04:46:46,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:46:46,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-20 04:46:46,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:46:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:46,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:46:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:46,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175312512] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:46:46,907 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:46:46,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-02-20 04:46:46,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724554602] [2022-02-20 04:46:46,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:46:46,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-20 04:46:46,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:46:46,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-20 04:46:46,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-02-20 04:46:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:46,909 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:46:46,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:46:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:46:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:48,186 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-02-20 04:46:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:46:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-20 04:46:48,203 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 04:46:48,387 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 04:46:48,388 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:46:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:46:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-02-20 04:46:48,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:46:48,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449688113] [2022-02-20 04:46:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:46:48,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:46:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:46:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:48,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:46:48,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449688113] [2022-02-20 04:46:48,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449688113] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:46:48,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614284417] [2022-02-20 04:46:48,567 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 04:46:48,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:46:48,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:46:48,568 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:46:48,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 04:46:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:46:48,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-20 04:46:48,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:46:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 04:46:48,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:46:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 04:46:49,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614284417] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:46:49,224 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:46:49,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-02-20 04:46:49,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831372480] [2022-02-20 04:46:49,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:46:49,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-20 04:46:49,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:46:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-20 04:46:49,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-02-20 04:46:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:49,226 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:46:49,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-20 04:46:49,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:52,967 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:46:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:46:52,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-20 04:46:53,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-20 04:46:53,169 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:46:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:46:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-02-20 04:46:53,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:46:53,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210895030] [2022-02-20 04:46:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:46:53,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:46:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:46:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:53,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:46:53,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210895030] [2022-02-20 04:46:53,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210895030] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:46:53,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120254642] [2022-02-20 04:46:53,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:46:53,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:46:53,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:46:53,377 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:46:53,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-20 04:46:53,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:46:53,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:46:53,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-20 04:46:53,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:46:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:46:53,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:46:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:46:54,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120254642] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:46:54,094 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:46:54,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-02-20 04:46:54,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999081520] [2022-02-20 04:46:54,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:46:54,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-20 04:46:54,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:46:54,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-20 04:46:54,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-02-20 04:46:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:54,096 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:46:54,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:46:54,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:54,977 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:46:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 04:46:54,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-20 04:46:55,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:46:55,178 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:46:55,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:46:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-02-20 04:46:55,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:46:55,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77531893] [2022-02-20 04:46:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:46:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:46:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:46:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:55,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:46:55,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77531893] [2022-02-20 04:46:55,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77531893] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:46:55,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125125668] [2022-02-20 04:46:55,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:46:55,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:46:55,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:46:55,404 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:46:55,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-20 04:46:55,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-20 04:46:55,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:46:55,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-20 04:46:55,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:46:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:55,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:46:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:56,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125125668] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:46:56,458 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:46:56,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-02-20 04:46:56,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840420312] [2022-02-20 04:46:56,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:46:56,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-20 04:46:56,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:46:56,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-20 04:46:56,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-02-20 04:46:56,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:56,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:46:56,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 04:46:56,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:46:57,185 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 04:46:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-20 04:46:57,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-20 04:46:57,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-20 04:46:57,387 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:46:57,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:46:57,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-02-20 04:46:57,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:46:57,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282307692] [2022-02-20 04:46:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:46:57,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:46:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:46:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:46:58,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:46:58,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282307692] [2022-02-20 04:46:58,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282307692] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:46:58,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419653445] [2022-02-20 04:46:58,454 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:46:58,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:46:58,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:46:58,455 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:46:58,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-20 04:46:58,489 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:46:58,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:46:58,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-02-20 04:46:58,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:47:00,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:00,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:00,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:47:00,651 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-02-20 04:47:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:47:00,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:47:02,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:02,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:47:07,448 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-02-20 04:47:07,449 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-02-20 04:54:10,531 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-20 04:54:10,533 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-20 04:54:10,542 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 04:54:10,542 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:54:10,542 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 04:54:10,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-20 04:54:10,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-20 04:54:10,745 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. [2022-02-20 04:54:10,747 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-20 04:54:10,747 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-20 04:54:10,747 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-20 04:54:10,751 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-02-20 04:54:10,753 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:54:10,753 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:54:10,755 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:54:10 BasicIcfg [2022-02-20 04:54:10,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:54:10,756 INFO L158 Benchmark]: Toolchain (without parser) took 842706.31ms. Allocated memory was 185.6MB in the beginning and 660.6MB in the end (delta: 475.0MB). Free memory was 151.1MB in the beginning and 510.6MB in the end (delta: -359.6MB). Peak memory consumption was 375.8MB. Max. memory is 8.0GB. [2022-02-20 04:54:10,756 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 152.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:54:10,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.41ms. Allocated memory is still 185.6MB. Free memory was 151.1MB in the beginning and 149.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:54:10,756 INFO L158 Benchmark]: Boogie Preprocessor took 16.23ms. Allocated memory is still 185.6MB. Free memory was 149.6MB in the beginning and 148.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:54:10,756 INFO L158 Benchmark]: RCFGBuilder took 164.06ms. Allocated memory is still 185.6MB. Free memory was 148.5MB in the beginning and 139.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 04:54:10,757 INFO L158 Benchmark]: TraceAbstraction took 842500.43ms. Allocated memory was 185.6MB in the beginning and 660.6MB in the end (delta: 475.0MB). Free memory was 138.6MB in the beginning and 510.6MB in the end (delta: -372.0MB). Peak memory consumption was 364.3MB. Max. memory is 8.0GB. [2022-02-20 04:54:10,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 152.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.41ms. Allocated memory is still 185.6MB. Free memory was 151.1MB in the beginning and 149.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.23ms. Allocated memory is still 185.6MB. Free memory was 149.6MB in the beginning and 148.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 164.06ms. Allocated memory is still 185.6MB. Free memory was 148.5MB in the beginning and 139.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 842500.43ms. Allocated memory was 185.6MB in the beginning and 660.6MB in the end (delta: 475.0MB). Free memory was 138.6MB in the beginning and 510.6MB in the end (delta: -372.0MB). Peak memory consumption was 364.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 9ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 842.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 31.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 374.7s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown