/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 01:47:30,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 01:47:30,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 01:47:30,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 01:47:30,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 01:47:30,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 01:47:30,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 01:47:30,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 01:47:30,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 01:47:30,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 01:47:30,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 01:47:30,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 01:47:30,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 01:47:30,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 01:47:30,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 01:47:30,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 01:47:30,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 01:47:30,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 01:47:30,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 01:47:30,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 01:47:30,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 01:47:30,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 01:47:30,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 01:47:30,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 01:47:30,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 01:47:30,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 01:47:30,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 01:47:30,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 01:47:30,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 01:47:30,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 01:47:30,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 01:47:30,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 01:47:30,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 01:47:30,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 01:47:30,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 01:47:30,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 01:47:30,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 01:47:30,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 01:47:30,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 01:47:30,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 01:47:30,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 01:47:30,480 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-16 01:47:30,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 01:47:30,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 01:47:30,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 01:47:30,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 01:47:30,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 01:47:30,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 01:47:30,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 01:47:30,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 01:47:30,504 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 01:47:30,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 01:47:30,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 01:47:30,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 01:47:30,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 01:47:30,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 01:47:30,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 01:47:30,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 01:47:30,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 01:47:30,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 01:47:30,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 01:47:30,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-16 01:47:30,508 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-16 01:47:30,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 01:47:30,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 01:47:30,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 01:47:30,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 01:47:30,683 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 01:47:30,686 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 01:47:30,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl [2022-02-16 01:47:30,689 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl' [2022-02-16 01:47:30,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 01:47:30,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 01:47:30,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 01:47:30,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 01:47:30,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 01:47:30,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,725 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 01:47:30,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 01:47:30,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 01:47:30,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 01:47:30,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 01:47:30,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 01:47:30,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 01:47:30,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 01:47:30,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 01:47:30,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/1) ... [2022-02-16 01:47:30,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 01:47:30,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:30,780 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) [2022-02-16 01:47:30,800 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 [2022-02-16 01:47:30,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 01:47:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 01:47:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 01:47:30,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 01:47:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 01:47:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 01:47:30,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 01:47:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 01:47:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 01:47:30,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 01:47:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 01:47:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 01:47:30,809 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 01:47:30,842 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 01:47:30,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 01:47:30,909 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 01:47:30,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 01:47:30,913 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 01:47:30,915 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:47:30 BoogieIcfgContainer [2022-02-16 01:47:30,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 01:47:30,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 01:47:30,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 01:47:30,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 01:47:30,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:47:30" (1/2) ... [2022-02-16 01:47:30,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45da55f8 and model type array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:47:30, skipping insertion in model container [2022-02-16 01:47:30,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:47:30" (2/2) ... [2022-02-16 01:47:30,923 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum-alt.wvr.bpl [2022-02-16 01:47:30,925 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 01:47:30,926 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 01:47:30,926 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 01:47:30,926 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 01:47:30,979 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 01:47:31,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 01:47:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:31,021 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) [2022-02-16 01:47:31,067 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 [2022-02-16 01:47:31,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-16 01:47:31,085 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 [2022-02-16 01:47:31,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 01:47:31,241 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1712512607, now seen corresponding path program 1 times [2022-02-16 01:47:31,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:31,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169034350] [2022-02-16 01:47:31,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:31,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:31,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:31,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:31,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169034350] [2022-02-16 01:47:31,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169034350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 01:47:31,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 01:47:31,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 01:47:31,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8859741] [2022-02-16 01:47:31,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 01:47:31,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 01:47:31,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:31,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 01:47:31,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 01:47:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:31,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:31,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-02-16 01:47:31,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:31,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 01:47:31,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:31,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:31,482 INFO L85 PathProgramCache]: Analyzing trace with hash 798562164, now seen corresponding path program 1 times [2022-02-16 01:47:31,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:31,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215341251] [2022-02-16 01:47:31,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:31,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:31,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:31,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215341251] [2022-02-16 01:47:31,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215341251] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:31,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748590230] [2022-02-16 01:47:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:31,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:31,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:31,573 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) [2022-02-16 01:47:31,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 01:47:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:31,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-16 01:47:31,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:31,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:31,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:31,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748590230] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:31,891 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:31,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2022-02-16 01:47:31,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930370954] [2022-02-16 01:47:31,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:31,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-16 01:47:31,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:31,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-16 01:47:31,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-16 01:47:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:31,896 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:31,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2022-02-16 01:47:31,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:31,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:32,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:32,332 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,SelfDestructingSolverStorable1 [2022-02-16 01:47:32,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:32,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash -647162114, now seen corresponding path program 1 times [2022-02-16 01:47:32,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:32,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149217818] [2022-02-16 01:47:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:32,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:32,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:32,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149217818] [2022-02-16 01:47:32,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149217818] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:32,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160200376] [2022-02-16 01:47:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:32,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:32,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:32,431 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) [2022-02-16 01:47:32,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 01:47:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:32,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-16 01:47:32,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:32,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-16 01:47:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:32,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:32,751 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 01:47:32,752 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 17 [2022-02-16 01:47:32,766 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2022-02-16 01:47:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:32,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160200376] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:32,812 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:32,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2022-02-16 01:47:32,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786574649] [2022-02-16 01:47:32,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:32,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-16 01:47:32,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-16 01:47:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-02-16 01:47:32,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:32,814 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:32,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-02-16 01:47:32,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:32,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:32,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:32,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:33,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:33,112 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:33,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2138608557, now seen corresponding path program 2 times [2022-02-16 01:47:33,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:33,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912197478] [2022-02-16 01:47:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:33,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:33,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:33,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912197478] [2022-02-16 01:47:33,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912197478] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:33,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399402855] [2022-02-16 01:47:33,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 01:47:33,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:33,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:33,175 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) [2022-02-16 01:47:33,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 01:47:33,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 01:47:33,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:33,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-16 01:47:33,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:33,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:33,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399402855] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:33,423 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:33,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-02-16 01:47:33,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126352333] [2022-02-16 01:47:33,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:33,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-16 01:47:33,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-16 01:47:33,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-02-16 01:47:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:33,426 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:33,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 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) [2022-02-16 01:47:33,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:33,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:33,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:33,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:33,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-16 01:47:33,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:33,827 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:33,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:33,827 INFO L85 PathProgramCache]: Analyzing trace with hash -531390017, now seen corresponding path program 3 times [2022-02-16 01:47:33,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:33,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859694970] [2022-02-16 01:47:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:33,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:34,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:34,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859694970] [2022-02-16 01:47:34,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859694970] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:34,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746207057] [2022-02-16 01:47:34,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 01:47:34,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:34,024 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) [2022-02-16 01:47:34,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 01:47:34,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-16 01:47:34,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:34,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-16 01:47:34,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:34,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:34,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:47:34,461 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2022-02-16 01:47:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:34,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:34,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:47:34,837 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 01:47:34,837 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 64 [2022-02-16 01:47:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:35,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746207057] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:35,238 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:35,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 29 [2022-02-16 01:47:35,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006860613] [2022-02-16 01:47:35,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:35,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-16 01:47:35,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:35,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-16 01:47:35,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2022-02-16 01:47:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:35,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:35,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.310344827586207) internal successors, (67), 29 states have internal predecessors, (67), 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) [2022-02-16 01:47:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:35,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:35,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:36,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:36,044 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 432640692, now seen corresponding path program 1 times [2022-02-16 01:47:36,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:36,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654215196] [2022-02-16 01:47:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:36,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:36,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:36,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654215196] [2022-02-16 01:47:36,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654215196] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:36,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047942862] [2022-02-16 01:47:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:36,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:36,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:36,126 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) [2022-02-16 01:47:36,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 01:47:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:36,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-16 01:47:36,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:36,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:36,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047942862] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:36,454 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:36,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-16 01:47:36,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771858021] [2022-02-16 01:47:36,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:36,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-16 01:47:36,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-16 01:47:36,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-16 01:47:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:36,455 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:36,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.25) internal successors, (78), 24 states have internal predecessors, (78), 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) [2022-02-16 01:47:36,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:36,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:36,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:36,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:36,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:36,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:36,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:36,907 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1871268031, now seen corresponding path program 2 times [2022-02-16 01:47:36,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:36,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975209896] [2022-02-16 01:47:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:36,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:37,670 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:37,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:37,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975209896] [2022-02-16 01:47:37,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975209896] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:37,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736963466] [2022-02-16 01:47:37,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 01:47:37,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:37,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:37,672 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) [2022-02-16 01:47:37,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 01:47:37,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 01:47:37,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:37,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-16 01:47:37,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:38,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:38,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:47:38,771 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 01:47:38,772 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 71 [2022-02-16 01:47:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:38,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:40,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:47:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:40,742 INFO L353 Elim1Store]: treesize reduction 38, result has 80.5 percent of original size [2022-02-16 01:47:40,742 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 71 treesize of output 180 [2022-02-16 01:47:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:42,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736963466] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:42,074 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:42,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24, 24] total 61 [2022-02-16 01:47:42,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515832388] [2022-02-16 01:47:42,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:42,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-16 01:47:42,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:42,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-16 01:47:42,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=3440, Unknown=0, NotChecked=0, Total=3660 [2022-02-16 01:47:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:42,078 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:42,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 1.7377049180327868) internal successors, (106), 61 states have internal predecessors, (106), 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) [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:44,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-16 01:47:44,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:44,776 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:44,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:44,776 INFO L85 PathProgramCache]: Analyzing trace with hash 539677396, now seen corresponding path program 3 times [2022-02-16 01:47:44,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:44,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783078327] [2022-02-16 01:47:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:44,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:44,869 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:44,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:44,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783078327] [2022-02-16 01:47:44,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783078327] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:44,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306633573] [2022-02-16 01:47:44,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 01:47:44,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:44,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:44,871 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) [2022-02-16 01:47:44,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-16 01:47:44,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-02-16 01:47:44,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:44,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-16 01:47:44,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:45,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:45,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306633573] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:45,316 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:45,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2022-02-16 01:47:45,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758851800] [2022-02-16 01:47:45,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:45,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-16 01:47:45,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-16 01:47:45,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=763, Unknown=0, NotChecked=0, Total=930 [2022-02-16 01:47:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:45,318 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:45,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 31 states have internal predecessors, (102), 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) [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:45,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:47:46,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:46,215 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,SelfDestructingSolverStorable7 [2022-02-16 01:47:46,215 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:46,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:46,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1936824094, now seen corresponding path program 4 times [2022-02-16 01:47:46,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:46,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970311351] [2022-02-16 01:47:46,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:46,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:46,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:46,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970311351] [2022-02-16 01:47:46,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970311351] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:46,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457605467] [2022-02-16 01:47:46,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 01:47:46,328 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:46,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:46,329 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) [2022-02-16 01:47:46,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-16 01:47:46,357 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 01:47:46,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:46,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-16 01:47:46,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 48 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-16 01:47:46,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 37 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-16 01:47:46,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457605467] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:46,923 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:46,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 39 [2022-02-16 01:47:46,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653721764] [2022-02-16 01:47:46,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:46,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-16 01:47:46,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:46,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-16 01:47:46,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2022-02-16 01:47:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:46,924 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:46,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.2051282051282053) internal successors, (125), 39 states have internal predecessors, (125), 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) [2022-02-16 01:47:46,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:46,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:47:46,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:47:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-16 01:47:47,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:47,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:47,480 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1825810867, now seen corresponding path program 5 times [2022-02-16 01:47:47,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:47,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256379954] [2022-02-16 01:47:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:47,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 27 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:47,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:47,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256379954] [2022-02-16 01:47:47,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256379954] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:47,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271280731] [2022-02-16 01:47:47,604 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 01:47:47,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:47,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:47,605 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) [2022-02-16 01:47:47,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-16 01:47:47,634 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-16 01:47:47,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:47,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-16 01:47:47,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 27 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:47,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:47:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 40 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:48,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271280731] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:47:48,235 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:47:48,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 42 [2022-02-16 01:47:48,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659096397] [2022-02-16 01:47:48,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:47:48,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-16 01:47:48,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:47:48,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-16 01:47:48,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=1398, Unknown=0, NotChecked=0, Total=1722 [2022-02-16 01:47:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:48,238 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:47:48,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.142857142857143) internal successors, (132), 42 states have internal predecessors, (132), 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) [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-16 01:47:48,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:47:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:47:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:47:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-16 01:47:48,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 01:47:48,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-16 01:47:48,859 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,SelfDestructingSolverStorable9 [2022-02-16 01:47:48,860 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:47:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:47:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1755583230, now seen corresponding path program 6 times [2022-02-16 01:47:48,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:47:48,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511323027] [2022-02-16 01:47:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:47:48,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:47:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:47:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:47:50,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:47:50,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511323027] [2022-02-16 01:47:50,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511323027] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:47:50,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297664991] [2022-02-16 01:47:50,405 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 01:47:50,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:47:50,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:47:50,406 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) [2022-02-16 01:47:50,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-16 01:47:50,439 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-02-16 01:47:50,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:47:50,440 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 66 conjunts are in the unsatisfiable core [2022-02-16 01:47:50,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:47:52,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:52,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:47:53,104 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 01:47:53,105 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 34 case distinctions, treesize of input 59 treesize of output 349 [2022-02-16 01:48:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:48:06,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:48:21,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:48:21,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:21,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:48:21,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:48:22,484 INFO L353 Elim1Store]: treesize reduction 134, result has 78.7 percent of original size [2022-02-16 01:48:22,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 7 disjoint index pairs (out of 91 index pairs), introduced 12 new quantified variables, introduced 75 case distinctions, treesize of input 131 treesize of output 526 [2022-02-16 01:55:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:55:45,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297664991] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:55:45,739 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:55:45,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36, 36] total 97 [2022-02-16 01:55:45,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754409534] [2022-02-16 01:55:45,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:55:45,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-16 01:55:45,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:55:45,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-16 01:55:45,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=436, Invalid=8876, Unknown=0, NotChecked=0, Total=9312 [2022-02-16 01:55:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:55:45,742 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:55:45,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 1.6494845360824741) internal successors, (160), 97 states have internal predecessors, (160), 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) [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 01:55:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 01:56:07,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-16 01:56:07,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-16 01:56:07,255 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,SelfDestructingSolverStorable10 [2022-02-16 01:56:07,255 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:56:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:56:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash -391604353, now seen corresponding path program 7 times [2022-02-16 01:56:07,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:56:07,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172050099] [2022-02-16 01:56:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:56:07,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:56:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:56:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 18 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:56:09,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:56:09,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172050099] [2022-02-16 01:56:09,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172050099] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:56:09,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670686565] [2022-02-16 01:56:09,417 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 01:56:09,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:56:09,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:56:09,418 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 01:56:09,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-16 01:56:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:56:09,451 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 72 conjunts are in the unsatisfiable core [2022-02-16 01:56:09,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:56:12,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:56:12,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:56:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 01:56:12,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:12,049 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 28 [2022-02-16 01:56:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:56:12,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:56:15,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:15,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 01:56:17,341 INFO L353 Elim1Store]: treesize reduction 440, result has 62.7 percent of original size [2022-02-16 01:56:17,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 15 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 105 case distinctions, treesize of input 80 treesize of output 763 [2022-02-16 02:00:49,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 02:00:49,527 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 02:00:49,528 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 104 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 16 case distinctions, treesize of input 79 treesize of output 202 [2022-02-16 02:00:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 02:00:50,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670686565] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 02:00:50,198 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 02:00:50,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 36, 36] total 104 [2022-02-16 02:00:50,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997364573] [2022-02-16 02:00:50,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 02:00:50,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-16 02:00:50,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 02:00:50,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-16 02:00:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=10240, Unknown=0, NotChecked=0, Total=10712 [2022-02-16 02:00:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 02:00:50,201 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 02:00:50,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 1.7211538461538463) internal successors, (179), 104 states have internal predecessors, (179), 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) [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2022-02-16 02:00:50,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-16 02:01:27,787 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 [2022-02-16 02:01:27,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-16 02:01:27,796 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 [2022-02-16 02:01:27,799 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 02:01:27,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-16 02:01:27,983 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 219 known predicates. [2022-02-16 02:01:27,985 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-16 02:01:27,985 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-16 02:01:27,985 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-16 02:01:27,986 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-16 02:01:27,989 INFO L732 BasicCegarLoop]: Path program histogram: [7, 3, 1, 1] [2022-02-16 02:01:27,990 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 02:01:27,991 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 02:01:27,992 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 02:01:27 BasicIcfg [2022-02-16 02:01:27,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 02:01:27,994 INFO L158 Benchmark]: Toolchain (without parser) took 837287.44ms. Allocated memory was 180.4MB in the beginning and 626.0MB in the end (delta: 445.6MB). Free memory was 138.8MB in the beginning and 425.8MB in the end (delta: -286.9MB). Peak memory consumption was 160.7MB. Max. memory is 8.0GB. [2022-02-16 02:01:27,994 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 02:01:27,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.72ms. Allocated memory is still 180.4MB. Free memory was 138.7MB in the beginning and 137.2MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-16 02:01:27,994 INFO L158 Benchmark]: Boogie Preprocessor took 14.35ms. Allocated memory is still 180.4MB. Free memory was 137.2MB in the beginning and 136.2MB in the end (delta: 995.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 02:01:27,994 INFO L158 Benchmark]: RCFGBuilder took 168.27ms. Allocated memory is still 180.4MB. Free memory was 136.2MB in the beginning and 127.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-16 02:01:27,994 INFO L158 Benchmark]: TraceAbstraction took 837076.37ms. Allocated memory was 180.4MB in the beginning and 626.0MB in the end (delta: 445.6MB). Free memory was 126.8MB in the beginning and 425.8MB in the end (delta: -298.9MB). Peak memory consumption was 147.1MB. Max. memory is 8.0GB. [2022-02-16 02:01:27,995 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 180.4MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.72ms. Allocated memory is still 180.4MB. Free memory was 138.7MB in the beginning and 137.2MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.35ms. Allocated memory is still 180.4MB. Free memory was 137.2MB in the beginning and 136.2MB in the end (delta: 995.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 168.27ms. Allocated memory is still 180.4MB. Free memory was 136.2MB in the beginning and 127.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 837076.37ms. Allocated memory was 180.4MB in the beginning and 626.0MB in the end (delta: 445.6MB). Free memory was 126.8MB in the beginning and 425.8MB in the end (delta: -298.9MB). Peak memory consumption was 147.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4042, positive: 3324, positive conditional: 2951, positive unconditional: 373, negative: 718, negative conditional: 718, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3324, positive: 3324, positive conditional: 2951, positive unconditional: 373, 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: 3324, positive: 3324, positive conditional: 2951, positive unconditional: 373, 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: 3324, positive: 3324, positive conditional: 2706, positive unconditional: 618, 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: 3324, positive: 3324, positive conditional: 2662, positive unconditional: 662, 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: 3324, positive: 3324, positive conditional: 2662, positive unconditional: 662, 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: 349, positive: 349, positive conditional: 0, positive unconditional: 349, 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: 349, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3324, positive: 2975, positive conditional: 2662, positive unconditional: 313, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 349, unknown conditional: 0, unknown unconditional: 349] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 349, Positive conditional cache size: 0, Positive unconditional cache size: 349, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 44, Maximal queried relation: 0, Independence queries for same thread: 718 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 24, Number of trivial persistent sets: 12, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 373, positive: 373, positive conditional: 0, positive unconditional: 373, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4042, positive: 3324, positive conditional: 2951, positive unconditional: 373, negative: 718, negative conditional: 718, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3324, positive: 3324, positive conditional: 2951, positive unconditional: 373, 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: 3324, positive: 3324, positive conditional: 2951, positive unconditional: 373, 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: 3324, positive: 3324, positive conditional: 2706, positive unconditional: 618, 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: 3324, positive: 3324, positive conditional: 2662, positive unconditional: 662, 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: 3324, positive: 3324, positive conditional: 2662, positive unconditional: 662, 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: 349, positive: 349, positive conditional: 0, positive unconditional: 349, 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: 349, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3324, positive: 2975, positive conditional: 2662, positive unconditional: 313, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 349, unknown conditional: 0, unknown unconditional: 349] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 349, Positive conditional cache size: 0, Positive unconditional cache size: 349, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 44, Maximal queried relation: 0, Independence queries for same thread: 718 - 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: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 219 known predicates. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 219 known predicates. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 219 known predicates. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 219 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 837.0s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 64.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 466, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 769.5s InterpolantComputationTime, 948 NumberOfCodeBlocks, 948 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 1379 ConstructedInterpolants, 104 QuantifiedInterpolants, 33378 SizeOfPredicates, 114 NumberOfNonLiveVariables, 951 ConjunctsInSsa, 282 ConjunctsInUnsatCore, 34 InterpolantComputations, 1 PerfectInterpolantSequences, 296/1626 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