/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1359.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 15:27:59,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 15:27:59,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 15:27:59,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 15:27:59,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 15:27:59,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 15:27:59,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 15:27:59,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 15:27:59,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 15:27:59,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 15:27:59,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 15:27:59,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 15:27:59,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 15:27:59,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 15:27:59,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 15:27:59,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 15:27:59,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 15:27:59,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 15:27:59,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 15:27:59,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 15:27:59,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 15:27:59,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 15:27:59,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 15:27:59,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 15:27:59,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 15:27:59,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 15:27:59,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 15:27:59,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 15:27:59,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 15:27:59,673 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 15:27:59,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 15:27:59,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 15:27:59,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 15:27:59,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 15:27:59,675 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 15:27:59,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 15:27:59,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 15:27:59,676 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 15:27:59,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 15:27:59,676 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 15:27:59,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 15:27:59,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 15:27:59,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 15:27:59,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 15:27:59,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 15:27:59,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 15:27:59,678 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 15:27:59,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 15:27:59,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 15:27:59,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 15:27:59,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 15:27:59,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 15:27:59,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 15:27:59,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 15:27:59,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:27:59,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 15:27:59,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 15:27:59,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 15:27:59,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 15:27:59,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 15:27:59,680 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 15:27:59,681 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 15:27:59,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 15:27:59,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 15:27:59,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 15:27:59,930 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 15:27:59,931 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 15:27:59,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1359.bpl [2022-10-03 15:27:59,933 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1359.bpl' [2022-10-03 15:28:00,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 15:28:00,015 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 15:28:00,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 15:28:00,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 15:28:00,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 15:28:00,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 15:28:00,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 15:28:00,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 15:28:00,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 15:28:00,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/1) ... [2022-10-03 15:28:00,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:28:00,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:28:00,201 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) [2022-10-03 15:28:00,218 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 [2022-10-03 15:28:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 15:28:00,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 15:28:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 15:28:00,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 15:28:00,244 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 15:28:00,409 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 15:28:00,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 15:28:01,479 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 15:28:01,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 15:28:01,507 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 15:28:01,511 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:28:01 BoogieIcfgContainer [2022-10-03 15:28:01,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 15:28:01,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 15:28:01,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 15:28:01,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 15:28:01,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:28:00" (1/2) ... [2022-10-03 15:28:01,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48cb35d1 and model type divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:28:01, skipping insertion in model container [2022-10-03 15:28:01,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1359.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:28:01" (2/2) ... [2022-10-03 15:28:01,527 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1359.bpl [2022-10-03 15:28:01,535 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 15:28:01,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 15:28:01,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 15:28:01,546 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 15:28:01,719 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 15:28:01,799 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 15:28:01,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:28:01,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:28:01,807 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) [2022-10-03 15:28:01,820 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 [2022-10-03 15:28:01,842 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:28:01,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:28:01,854 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a9fef44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:28:01,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:28:02,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:28:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:28:02,237 INFO L85 PathProgramCache]: Analyzing trace with hash -78769363, now seen corresponding path program 1 times [2022-10-03 15:28:02,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:28:02,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718404067] [2022-10-03 15:28:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:28:02,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:28:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:28:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:28:02,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:28:02,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718404067] [2022-10-03 15:28:02,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718404067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:28:02,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:28:02,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 15:28:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248187437] [2022-10-03 15:28:02,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:28:02,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 15:28:02,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:28:02,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 15:28:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 15:28:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:02,848 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:28:02,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 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) [2022-10-03 15:28:02,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:03,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 15:28:03,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:28:03,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:28:03,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2032955304, now seen corresponding path program 1 times [2022-10-03 15:28:03,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:28:03,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402460806] [2022-10-03 15:28:03,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:28:03,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:28:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:28:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:28:06,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:28:06,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402460806] [2022-10-03 15:28:06,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402460806] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:28:06,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:28:06,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-10-03 15:28:06,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948692882] [2022-10-03 15:28:06,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:28:06,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-10-03 15:28:06,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:28:06,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-10-03 15:28:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=3360, Unknown=0, NotChecked=0, Total=3540 [2022-10-03 15:28:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:06,639 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:28:06,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 10.316666666666666) internal successors, (619), 60 states have internal predecessors, (619), 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) [2022-10-03 15:28:06,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:06,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:28:20,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 15:28:20,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:28:20,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:28:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1710707047, now seen corresponding path program 1 times [2022-10-03 15:28:20,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:28:20,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462640147] [2022-10-03 15:28:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:28:20,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:28:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:28:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:28:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:28:22,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462640147] [2022-10-03 15:28:22,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462640147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:28:22,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:28:22,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-10-03 15:28:22,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331269638] [2022-10-03 15:28:22,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:28:22,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-10-03 15:28:22,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:28:22,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-10-03 15:28:22,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2809, Unknown=0, NotChecked=0, Total=2970 [2022-10-03 15:28:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:22,878 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:28:22,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 10.407407407407407) internal successors, (562), 55 states have internal predecessors, (562), 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) [2022-10-03 15:28:22,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:22,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:28:22,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:28:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:28:39,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-03 15:28:39,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:28:39,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:28:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash -369682669, now seen corresponding path program 1 times [2022-10-03 15:28:39,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:28:39,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428738513] [2022-10-03 15:28:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:28:39,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:28:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:28:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:28:43,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:28:43,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428738513] [2022-10-03 15:28:43,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428738513] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:28:43,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:28:43,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2022-10-03 15:28:43,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475623533] [2022-10-03 15:28:43,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:28:43,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-10-03 15:28:43,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:28:43,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-10-03 15:28:43,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=5600, Unknown=0, NotChecked=0, Total=5852 [2022-10-03 15:28:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:43,050 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:28:43,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 11.012987012987013) internal successors, (848), 77 states have internal predecessors, (848), 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) [2022-10-03 15:28:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:28:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:28:43,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:28:43,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:29:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:29:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:29:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:29:04,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-10-03 15:29:04,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-03 15:29:04,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:29:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:29:04,553 INFO L85 PathProgramCache]: Analyzing trace with hash 102196997, now seen corresponding path program 1 times [2022-10-03 15:29:04,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:29:04,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428563315] [2022-10-03 15:29:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:29:04,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:29:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:29:07,989 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:29:07,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:29:07,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428563315] [2022-10-03 15:29:07,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428563315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:29:07,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:29:07,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-10-03 15:29:07,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481645510] [2022-10-03 15:29:07,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:29:07,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-10-03 15:29:07,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:29:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-10-03 15:29:07,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=6069, Unknown=0, NotChecked=0, Total=6320 [2022-10-03 15:29:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:29:07,994 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:29:07,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 9.65) internal successors, (772), 80 states have internal predecessors, (772), 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) [2022-10-03 15:29:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:29:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:29:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:29:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-10-03 15:29:07,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:29:38,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:29:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-10-03 15:29:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-03 15:29:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-10-03 15:29:38,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-10-03 15:29:38,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-03 15:29:38,122 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:29:38,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:29:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash 517001712, now seen corresponding path program 1 times [2022-10-03 15:29:38,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:29:38,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554682231] [2022-10-03 15:29:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:29:38,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:29:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:29:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 143 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:29:42,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:29:42,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554682231] [2022-10-03 15:29:42,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554682231] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:29:42,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862984296] [2022-10-03 15:29:42,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:29:42,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:29:42,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:29:42,197 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) [2022-10-03 15:29:42,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 15:29:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:29:42,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 133 conjunts are in the unsatisfiable core [2022-10-03 15:29:42,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:29:42,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:29:43,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:29:43,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-03 15:29:44,173 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 15:29:44,174 INFO L390 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 11 treesize of output 11 [2022-10-03 15:29:44,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-03 15:29:47,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-03 15:29:47,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-03 15:29:49,670 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 15:29:49,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2022-10-03 15:29:49,680 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-03 15:29:49,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-10-03 15:29:49,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 15 [2022-10-03 15:29:49,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 14 [2022-10-03 15:29:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 179 proven. 109 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-03 15:29:50,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:29:50,773 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_418 (Array Int Int)) (v_ArrVal_417 (Array Int Int))) (< (+ 3 (select (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) (select |c_#length| (select (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_417) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_418 (Array Int Int))) (<= 0 (select (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) is different from false [2022-10-03 15:29:50,815 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_418 (Array Int Int)) (v_ArrVal_417 (Array Int Int))) (< (+ (select (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) 3) (select |c_#length| (select (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_417) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_418 (Array Int Int))) (<= 0 (select (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) is different from false [2022-10-03 15:29:50,830 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_418 (Array Int Int)) (v_ArrVal_417 (Array Int Int))) (< (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) 3) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_417) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_418 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) is different from false [2022-10-03 15:29:50,898 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_418 (Array Int Int)) (v_ArrVal_417 (Array Int Int))) (< (+ 3 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_417) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_418 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) is different from false [2022-10-03 15:29:50,906 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_418 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (forall ((v_ArrVal_418 (Array Int Int)) (v_ArrVal_417 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (< (+ 3 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_417) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))))) is different from false [2022-10-03 15:29:50,926 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_418 (Array Int Int)) (v_ArrVal_417 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (< (+ 3 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_417) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) (forall ((v_ArrVal_418 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_418) |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) is different from false [2022-10-03 15:29:54,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 117 treesize of output 109 [2022-10-03 15:29:54,060 INFO L356 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2022-10-03 15:29:54,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 170 treesize of output 168 [2022-10-03 15:29:54,072 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:29:54,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 183 treesize of output 170 [2022-10-03 15:29:54,078 INFO L390 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 54 treesize of output 50 [2022-10-03 15:29:55,727 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-03 15:29:55,728 INFO L390 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 13 treesize of output 12 [2022-10-03 15:29:58,594 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_412 Int) (v_ArrVal_411 Int) (|ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| Int)) (or (< (select (store (store |c_ULTIMATE.start_#Ultimate.allocOnHeap_old_#length#1| |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_411) |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_412) |c_ULTIMATE.start_main_~#q~1#1.base|) 16) (= |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| |c_ULTIMATE.start_fifo_init_~self#1.base|))))) is different from false [2022-10-03 15:30:56,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 15:30:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 182 trivial. 41 not checked. [2022-10-03 15:30:56,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862984296] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:30:56,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:30:56,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 49, 40] total 174 [2022-10-03 15:30:56,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903072746] [2022-10-03 15:30:56,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:30:56,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 174 states [2022-10-03 15:30:56,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:30:56,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2022-10-03 15:30:56,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=701, Invalid=27020, Unknown=29, NotChecked=2352, Total=30102 [2022-10-03 15:30:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:30:56,950 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:30:56,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 174 states, 174 states have (on average 15.32183908045977) internal successors, (2666), 174 states have internal predecessors, (2666), 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) [2022-10-03 15:30:56,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:30:56,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-10-03 15:30:56,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-10-03 15:30:56,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2022-10-03 15:30:56,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2022-10-03 15:30:56,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:31:21,060 WARN L233 SmtUtils]: Spent 22.98s on a formula simplification. DAG size of input: 58 DAG size of output: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 15:31:26,273 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 40 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 15:31:36,545 WARN L233 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 33 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 15:31:49,269 WARN L233 SmtUtils]: Spent 12.63s on a formula simplification. DAG size of input: 37 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 15:34:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:34:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-10-03 15:34:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-03 15:34:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-10-03 15:34:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-10-03 15:34:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2022-10-03 15:34:32,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-03 15:34:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-03 15:34:32,252 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:34:32,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:34:32,253 INFO L85 PathProgramCache]: Analyzing trace with hash 185187299, now seen corresponding path program 1 times [2022-10-03 15:34:32,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:34:32,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467475016] [2022-10-03 15:34:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:34:32,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:34:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:34:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 187 proven. 461 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-10-03 15:34:34,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:34:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467475016] [2022-10-03 15:34:34,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467475016] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:34:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571800443] [2022-10-03 15:34:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:34:34,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:34:34,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:34:34,660 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) [2022-10-03 15:34:34,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-03 15:34:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:34:35,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 3803 conjuncts, 212 conjunts are in the unsatisfiable core [2022-10-03 15:34:35,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:34:35,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:34:35,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:34:37,774 INFO L356 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-10-03 15:34:37,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-10-03 15:34:38,232 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-03 15:34:38,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 69 [2022-10-03 15:34:38,239 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-03 15:34:38,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 58 [2022-10-03 15:34:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-10-03 15:34:42,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 15:34:42,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571800443] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:34:42,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 15:34:42,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [36] total 89 [2022-10-03 15:34:42,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747340193] [2022-10-03 15:34:42,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:34:42,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-10-03 15:34:42,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:34:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-10-03 15:34:42,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=7493, Unknown=0, NotChecked=0, Total=7832 [2022-10-03 15:34:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:34:42,500 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:34:42,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 17.035714285714285) internal successors, (954), 56 states have internal predecessors, (954), 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) [2022-10-03 15:34:42,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:34:42,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-10-03 15:34:42,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-10-03 15:34:42,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-10-03 15:34:42,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-10-03 15:34:42,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2022-10-03 15:34:42,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:35:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:35:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:35:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:35:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:35:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:35:17,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-03 15:35:17,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:35:17,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:35:17,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:35:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash 425022248, now seen corresponding path program 1 times [2022-10-03 15:35:17,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:35:17,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830883887] [2022-10-03 15:35:17,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:35:17,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:35:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:35:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:35:19,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:35:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830883887] [2022-10-03 15:35:19,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830883887] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:35:19,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:35:19,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-10-03 15:35:19,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015935792] [2022-10-03 15:35:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:35:19,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-10-03 15:35:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:35:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-10-03 15:35:19,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1850, Unknown=0, NotChecked=0, Total=1980 [2022-10-03 15:35:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:19,828 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:35:19,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 15.477272727272727) internal successors, (681), 45 states have internal predecessors, (681), 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) [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:35:19,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:35:36,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-10-03 15:35:36,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-03 15:35:36,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:35:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:35:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1582969108, now seen corresponding path program 1 times [2022-10-03 15:35:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:35:36,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454808207] [2022-10-03 15:35:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:35:36,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:35:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:35:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 33 proven. 72 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 15:35:38,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:35:38,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454808207] [2022-10-03 15:35:38,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454808207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:35:38,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906388233] [2022-10-03 15:35:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:35:38,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:35:38,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:35:38,746 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) [2022-10-03 15:35:38,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-03 15:35:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:35:39,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2401 conjuncts, 232 conjunts are in the unsatisfiable core [2022-10-03 15:35:39,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:35:39,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:35:39,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:35:39,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-03 15:35:40,632 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 15:35:40,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-10-03 15:35:44,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:35:44,935 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-10-03 15:35:44,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 31 [2022-10-03 15:35:48,354 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:35:48,354 INFO L390 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 26 treesize of output 28 [2022-10-03 15:35:50,319 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 15:35:50,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2022-10-03 15:35:50,335 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-03 15:35:50,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 37 [2022-10-03 15:35:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:35:50,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-03 15:35:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:35:51,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 15:35:51,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906388233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:35:51,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 15:35:51,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [55] total 122 [2022-10-03 15:35:51,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52363233] [2022-10-03 15:35:51,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:35:51,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-10-03 15:35:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:35:51,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-10-03 15:35:51,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=14262, Unknown=0, NotChecked=0, Total=14762 [2022-10-03 15:35:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:51,994 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:35:51,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 14.014492753623188) internal successors, (967), 69 states have internal predecessors, (967), 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) [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-10-03 15:35:51,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:58,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-10-03 15:35:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-10-03 15:35:58,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-03 15:35:58,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:35:58,633 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:35:58,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:35:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2096560046, now seen corresponding path program 1 times [2022-10-03 15:35:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:35:58,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398518397] [2022-10-03 15:35:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:35:58,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:35:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:35:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:35:59,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:35:59,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398518397] [2022-10-03 15:35:59,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398518397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:35:59,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:35:59,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-03 15:35:59,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514409712] [2022-10-03 15:35:59,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:35:59,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-03 15:35:59,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:35:59,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-03 15:35:59,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-10-03 15:35:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:59,125 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:35:59,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 43.333333333333336) internal successors, (910), 21 states have internal predecessors, (910), 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) [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-10-03 15:35:59,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-10-03 15:35:59,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:36:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:36:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-10-03 15:36:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-10-03 15:36:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:36:07,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-03 15:36:07,228 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:36:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:36:07,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1211956439, now seen corresponding path program 1 times [2022-10-03 15:36:07,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:36:07,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735995632] [2022-10-03 15:36:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:36:07,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:36:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:36:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 76 proven. 481 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-03 15:36:09,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:36:09,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735995632] [2022-10-03 15:36:09,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735995632] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:36:09,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971786058] [2022-10-03 15:36:09,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:36:09,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:36:09,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:36:09,319 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) [2022-10-03 15:36:09,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-03 15:36:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:36:09,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 3485 conjuncts, 212 conjunts are in the unsatisfiable core [2022-10-03 15:36:09,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:36:13,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:36:13,585 INFO L356 Elim1Store]: treesize reduction 104, result has 14.0 percent of original size [2022-10-03 15:36:13,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 40 [2022-10-03 15:36:13,603 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-03 15:36:13,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 32 [2022-10-03 15:36:13,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:36:13,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-03 15:36:15,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:36:15,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 4 [2022-10-03 15:36:15,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:36:15,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 10 [2022-10-03 15:36:15,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:36:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 485 proven. 147 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-03 15:36:15,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:36:15,827 INFO L390 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 10 treesize of output 8 [2022-10-03 15:36:17,263 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem41#1.base|)) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (or (not (<= 0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) (= |c_ULTIMATE.start_fifo_pop_~self#1.base| .cse0) (and (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) .cse0) (forall ((v_ArrVal_1079 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_1079) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse2 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse2 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))))))) is different from false [2022-10-03 15:36:18,855 INFO L356 Elim1Store]: treesize reduction 13, result has 79.0 percent of original size [2022-10-03 15:36:18,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 70 [2022-10-03 15:36:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-10-03 15:36:19,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971786058] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-03 15:36:19,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-03 15:36:19,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [38, 58] total 124 [2022-10-03 15:36:19,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136716270] [2022-10-03 15:36:19,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:36:19,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-03 15:36:19,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:36:19,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-03 15:36:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=882, Invalid=14044, Unknown=84, NotChecked=242, Total=15252 [2022-10-03 15:36:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:19,305 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:36:19,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 30.07894736842105) internal successors, (1143), 38 states have internal predecessors, (1143), 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) [2022-10-03 15:36:19,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:19,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:36:19,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:36:19,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:36:19,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-10-03 15:36:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:36:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-03 15:36:27,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-03 15:36:27,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-03 15:36:27,736 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:36:27,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:36:27,737 INFO L85 PathProgramCache]: Analyzing trace with hash -562197573, now seen corresponding path program 1 times [2022-10-03 15:36:27,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:36:27,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267487139] [2022-10-03 15:36:27,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:36:27,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:36:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:36:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 76 proven. 345 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2022-10-03 15:36:29,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:36:29,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267487139] [2022-10-03 15:36:29,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267487139] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:36:29,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947987836] [2022-10-03 15:36:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:36:29,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:36:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:36:29,753 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) [2022-10-03 15:36:29,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-03 15:36:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:36:30,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 3896 conjuncts, 131 conjunts are in the unsatisfiable core [2022-10-03 15:36:30,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:36:31,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:36:31,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:36:33,239 INFO L356 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-10-03 15:36:33,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 58 [2022-10-03 15:36:33,275 INFO L356 Elim1Store]: treesize reduction 22, result has 62.1 percent of original size [2022-10-03 15:36:33,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 66 [2022-10-03 15:36:33,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 77 treesize of output 53 [2022-10-03 15:36:33,644 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:36:33,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 57 treesize of output 45 [2022-10-03 15:36:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 96 proven. 325 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2022-10-03 15:36:33,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:36:34,666 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:36:34,667 INFO L390 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 132 treesize of output 136 [2022-10-03 15:36:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-10-03 15:36:36,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947987836] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-03 15:36:36,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-03 15:36:36,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [35, 35] total 77 [2022-10-03 15:36:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545217491] [2022-10-03 15:36:36,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:36:36,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-03 15:36:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:36:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-03 15:36:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=5632, Unknown=0, NotChecked=0, Total=6006 [2022-10-03 15:36:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:36,211 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:36:36,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 39.888888888888886) internal successors, (1077), 28 states have internal predecessors, (1077), 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) [2022-10-03 15:36:36,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:36:36,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-10-03 15:36:36,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-10-03 15:36:36,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-10-03 15:36:36,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-10-03 15:36:36,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 355 states. [2022-10-03 15:36:36,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-10-03 15:36:36,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-10-03 15:36:36,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-10-03 15:36:36,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:36:36,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-10-03 15:36:36,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.