/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:49:49,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:49:49,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:49:49,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 01:49:49,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 01:49:49,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 01:49:49,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 01:49:49,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 01:49:49,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 01:49:49,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 01:49:49,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 01:49:49,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 01:49:49,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:49:49,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:49:49,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:49:49,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:49:49,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:49:49,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:49:49,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:49:49,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:49:49,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:49:49,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:49:49,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:49:49,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:49:49,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 01:49:49,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:49:49,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:49:49,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:49:49,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 01:49:49,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:49:49,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:49:49,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:49:49,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:49:49,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:49:49,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:49:49,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:49:49,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:49:49,448 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:49:49,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:49:49,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:49:49,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:49:49,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:49:49,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:49:49,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:49:49,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:49:49,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:49:49,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:49:49,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:49:49,450 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:49:49,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:49:49,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:49:49,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:49:49,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:49:49,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:49:49,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:49:49,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:49:49,452 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:49:49,452 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:49:49,452 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:49:49,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:49:49,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:49:49,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:49:49,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:49:49,624 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:49:49,630 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:49:49,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2022-03-04 01:49:49,631 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2022-03-04 01:49:49,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:49:49,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:49:49,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:49:49,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:49:49,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:49:49,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,674 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:49:49,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:49:49,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:49:49,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:49:49,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:49:49,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:49:49,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:49:49,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:49:49,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:49:49,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/1) ... [2022-03-04 01:49:49,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:49:49,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:49,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 01:49:49,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 01:49:49,743 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:49:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:49:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:49:49,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:49:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:49:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:49:49,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:49:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:49:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:49:49,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:49:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:49:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:49:49,747 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 01:49:49,783 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:49:49,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:49:49,894 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:49:49,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:49:49,913 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:49:49,914 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:49:49 BoogieIcfgContainer [2022-03-04 01:49:49,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:49:49,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:49:49,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:49:49,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:49:49,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:49:49" (1/2) ... [2022-03-04 01:49:49,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473ab895 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:49:49, skipping insertion in model container [2022-03-04 01:49:49,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:49:49" (2/2) ... [2022-03-04 01:49:49,930 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2022-03-04 01:49:49,933 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:49:49,933 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:49:49,933 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:49:49,934 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:49:49,981 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 01:49:50,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:49:50,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:50,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 01:49:50,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 01:49:50,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:49:50,040 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 01:49:50,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 01:49:50,374 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1682 transitions and produced 636 states. [2022-03-04 01:49:50,376 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:50,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash -189379526, now seen corresponding path program 1 times [2022-03-04 01:49:50,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:50,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128782445] [2022-03-04 01:49:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:50,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:50,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128782445] [2022-03-04 01:49:50,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128782445] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:50,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919871196] [2022-03-04 01:49:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:50,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:50,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:50,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:50,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 01:49:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:50,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 01:49:50,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-04 01:49:51,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-04 01:49:51,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919871196] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:51,315 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:51,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2022-03-04 01:49:51,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555117803] [2022-03-04 01:49:51,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:51,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 01:49:51,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 01:49:51,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-04 01:49:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:51,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:51,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:49:51,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:51,843 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1693 transitions and produced 647 states. [2022-03-04 01:49:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:51,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:52,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 01:49:52,060 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:52,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash 420505112, now seen corresponding path program 2 times [2022-03-04 01:49:52,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:52,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495749401] [2022-03-04 01:49:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:49:52,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:52,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495749401] [2022-03-04 01:49:52,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495749401] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:52,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768990363] [2022-03-04 01:49:52,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:49:52,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:52,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:52,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:52,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 01:49:52,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:49:52,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:52,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-04 01:49:52,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:49:52,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:49:52,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768990363] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:52,508 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:52,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-03-04 01:49:52,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635236504] [2022-03-04 01:49:52,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:52,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 01:49:52,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 01:49:52,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-03-04 01:49:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:52,511 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:52,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:49:52,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:52,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:52,987 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1704 transitions and produced 658 states. [2022-03-04 01:49:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:53,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:53,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:53,212 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:53,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:53,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1890877322, now seen corresponding path program 3 times [2022-03-04 01:49:53,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:53,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197661112] [2022-03-04 01:49:53,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:53,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:53,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:53,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197661112] [2022-03-04 01:49:53,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197661112] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:53,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120806707] [2022-03-04 01:49:53,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:49:53,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:53,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:53,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:53,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 01:49:53,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-03-04 01:49:53,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:53,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 01:49:53,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:49:53,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:49:53,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120806707] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:53,819 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:53,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2022-03-04 01:49:53,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963542112] [2022-03-04 01:49:53,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:53,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-04 01:49:53,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-04 01:49:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-03-04 01:49:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:53,823 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:53,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:49:53,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:53,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:53,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:54,187 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 184 states. [2022-03-04 01:49:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:54,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 01:49:54,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:54,427 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:54,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:54,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1663662932, now seen corresponding path program 4 times [2022-03-04 01:49:54,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:54,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540961132] [2022-03-04 01:49:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:54,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:54,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540961132] [2022-03-04 01:49:54,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540961132] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:54,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853093528] [2022-03-04 01:49:54,559 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:49:54,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:54,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:54,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:54,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 01:49:54,611 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:49:54,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:54,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-04 01:49:54,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:49:54,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:49:55,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853093528] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:55,088 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:55,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 35 [2022-03-04 01:49:55,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052644390] [2022-03-04 01:49:55,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:55,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-04 01:49:55,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:55,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-04 01:49:55,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=994, Unknown=0, NotChecked=0, Total=1190 [2022-03-04 01:49:55,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:55,090 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:55,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:49:55,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:55,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:55,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:55,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:55,692 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1726 transitions and produced 680 states. [2022-03-04 01:49:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:55,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:55,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:55,910 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:55,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1217120590, now seen corresponding path program 5 times [2022-03-04 01:49:55,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:55,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43213294] [2022-03-04 01:49:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:55,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:56,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:56,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43213294] [2022-03-04 01:49:56,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43213294] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:56,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226175758] [2022-03-04 01:49:56,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:49:56,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:56,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:56,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:56,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 01:49:56,099 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-04 01:49:56,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:56,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-04 01:49:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:49:56,417 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:56,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:49:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:56,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226175758] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:49:56,765 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:49:56,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 47 [2022-03-04 01:49:56,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245486100] [2022-03-04 01:49:56,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:49:56,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-04 01:49:56,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:49:56,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-04 01:49:56,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1758, Unknown=0, NotChecked=0, Total=2162 [2022-03-04 01:49:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:56,767 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:49:56,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:49:56,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:56,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:56,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:56,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:56,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:49:57,284 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 270 transitions and produced 215 states. [2022-03-04 01:49:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:49:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:49:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:49:57,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:49:57,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 01:49:57,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:57,496 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:49:57,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:49:57,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1818267922, now seen corresponding path program 6 times [2022-03-04 01:49:57,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:49:57,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085859309] [2022-03-04 01:49:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:49:57,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:49:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:49:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:49:58,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:49:58,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085859309] [2022-03-04 01:49:58,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085859309] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:49:58,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005708295] [2022-03-04 01:49:58,625 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 01:49:58,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:49:58,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:49:58,626 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:49:58,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 01:49:58,662 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 01:49:58,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:49:58,664 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 78 conjunts are in the unsatisfiable core [2022-03-04 01:49:58,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:50:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:00,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:00,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2022-03-04 01:50:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:00,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:50:01,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:01,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:01,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:02,042 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:50:02,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 38 disjoint index pairs (out of 120 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 79 treesize of output 460 [2022-03-04 01:50:06,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:06,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:06,357 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 3 [2022-03-04 01:50:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:06,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005708295] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:50:06,522 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:50:06,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 26] total 65 [2022-03-04 01:50:06,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105002992] [2022-03-04 01:50:06,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:50:06,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-03-04 01:50:06,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:50:06,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-03-04 01:50:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=567, Invalid=3593, Unknown=0, NotChecked=0, Total=4160 [2022-03-04 01:50:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:06,525 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:50:06,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.0153846153846153) internal successors, (131), 65 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:50:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:06,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:37,958 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1959 transitions and produced 866 states. [2022-03-04 01:50:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:37,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:37,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 01:50:38,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:50:38,162 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:50:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:50:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1140115618, now seen corresponding path program 7 times [2022-03-04 01:50:38,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:50:38,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877137523] [2022-03-04 01:50:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:50:38,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:50:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:50:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 74 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:38,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:50:38,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877137523] [2022-03-04 01:50:38,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877137523] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:50:38,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811847207] [2022-03-04 01:50:38,382 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 01:50:38,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:50:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:50:38,383 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:50:38,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 01:50:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:50:38,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-04 01:50:38,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:50:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 62 proven. 92 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 01:50:38,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:50:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 73 proven. 81 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 01:50:39,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811847207] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:50:39,291 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:50:39,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 59 [2022-03-04 01:50:39,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556533762] [2022-03-04 01:50:39,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:50:39,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-03-04 01:50:39,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:50:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-03-04 01:50:39,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=2823, Unknown=0, NotChecked=0, Total=3422 [2022-03-04 01:50:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:39,302 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:50:39,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.288135593220339) internal successors, (135), 59 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:39,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:39,946 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 411 transitions and produced 309 states. [2022-03-04 01:50:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:50:39,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 01:50:40,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 01:50:40,157 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:50:40,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:50:40,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1271732028, now seen corresponding path program 8 times [2022-03-04 01:50:40,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:50:40,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354135662] [2022-03-04 01:50:40,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:50:40,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:50:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:50:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 74 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:40,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:50:40,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354135662] [2022-03-04 01:50:40,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354135662] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:50:40,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829820579] [2022-03-04 01:50:40,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:50:40,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:50:40,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:50:40,366 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:50:40,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 01:50:40,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:50:40,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:50:40,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 01:50:40,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:50:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 01:50:40,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:50:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 79 proven. 100 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 01:50:41,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829820579] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:50:41,280 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:50:41,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 25] total 62 [2022-03-04 01:50:41,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965124916] [2022-03-04 01:50:41,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:50:41,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-04 01:50:41,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:50:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-04 01:50:41,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=669, Invalid=3113, Unknown=0, NotChecked=0, Total=3782 [2022-03-04 01:50:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:41,282 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:50:41,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.274193548387097) internal successors, (141), 62 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:50:41,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:41,979 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 422 transitions and produced 320 states. [2022-03-04 01:50:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:50:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:50:42,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 01:50:42,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:50:42,200 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:50:42,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:50:42,200 INFO L85 PathProgramCache]: Analyzing trace with hash -225020006, now seen corresponding path program 9 times [2022-03-04 01:50:42,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:50:42,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982633405] [2022-03-04 01:50:42,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:50:42,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:50:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:50:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:42,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:50:42,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982633405] [2022-03-04 01:50:42,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982633405] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:50:42,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390347526] [2022-03-04 01:50:42,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:50:42,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:50:42,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:50:42,485 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:50:42,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 01:50:42,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-03-04 01:50:42,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:50:42,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-04 01:50:42,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:50:42,976 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:42,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:50:43,552 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 85 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:43,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390347526] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:50:43,552 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:50:43,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2022-03-04 01:50:43,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847792919] [2022-03-04 01:50:43,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:50:43,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-04 01:50:43,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:50:43,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-04 01:50:43,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=3623, Unknown=0, NotChecked=0, Total=4422 [2022-03-04 01:50:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:43,555 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:50:43,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.2686567164179103) internal successors, (152), 67 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:50:43,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:50:44,541 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 444 transitions and produced 340 states. [2022-03-04 01:50:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:50:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:50:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:50:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:50:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 01:50:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 01:50:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 01:50:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 01:50:44,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 01:50:44,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-04 01:50:44,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:50:44,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:50:44,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1959737814, now seen corresponding path program 10 times [2022-03-04 01:50:44,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:50:44,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572794720] [2022-03-04 01:50:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:50:44,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:50:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:50:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 24 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:46,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:50:46,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572794720] [2022-03-04 01:50:46,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572794720] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:50:46,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121460274] [2022-03-04 01:50:46,754 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:50:46,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:50:46,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:50:46,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 01:50:46,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 01:50:46,798 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:50:46,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:50:46,800 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-04 01:50:46,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:50:48,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:50:48,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:48,984 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 78 disjoint index pairs (out of 190 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 38 [2022-03-04 01:50:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:50:49,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:50:51,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:50:51,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 01:51:03,384 WARN L228 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 1305 DAG size of output: 909 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-04 01:51:03,386 INFO L353 Elim1Store]: treesize reduction 1508, result has 57.9 percent of original size [2022-03-04 01:51:03,387 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 15 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 310 case distinctions, treesize of input 130 treesize of output 2105 Received shutdown request... [2022-03-04 02:03:59,949 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 02:03:59,950 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 02:03:59,953 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 02:03:59,958 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 02:03:59,960 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 02:03:59,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 02:04:00,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-04 02:04:00,153 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 17ms.. [2022-03-04 02:04:00,155 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 02:04:00,155 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 02:04:00,155 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 02:04:00,158 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-04 02:04:00,159 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 02:04:00,159 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 02:04:00,161 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 02:04:00 BasicIcfg [2022-03-04 02:04:00,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 02:04:00,161 INFO L158 Benchmark]: Toolchain (without parser) took 850513.63ms. Allocated memory was 221.2MB in the beginning and 585.1MB in the end (delta: 363.9MB). Free memory was 184.4MB in the beginning and 495.2MB in the end (delta: -310.8MB). Peak memory consumption was 405.5MB. Max. memory is 8.0GB. [2022-03-04 02:04:00,161 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 221.2MB. Free memory is still 185.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 02:04:00,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.84ms. Allocated memory is still 221.2MB. Free memory was 184.4MB in the beginning and 182.8MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 02:04:00,162 INFO L158 Benchmark]: Boogie Preprocessor took 10.68ms. Allocated memory is still 221.2MB. Free memory was 182.8MB in the beginning and 181.9MB in the end (delta: 971.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 02:04:00,162 INFO L158 Benchmark]: RCFGBuilder took 227.19ms. Allocated memory is still 221.2MB. Free memory was 181.8MB in the beginning and 172.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 02:04:00,162 INFO L158 Benchmark]: TraceAbstraction took 850245.47ms. Allocated memory was 221.2MB in the beginning and 585.1MB in the end (delta: 363.9MB). Free memory was 171.9MB in the beginning and 495.2MB in the end (delta: -323.3MB). Peak memory consumption was 391.8MB. Max. memory is 8.0GB. [2022-03-04 02:04:00,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13ms. Allocated memory is still 221.2MB. Free memory is still 185.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.84ms. Allocated memory is still 221.2MB. Free memory was 184.4MB in the beginning and 182.8MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.68ms. Allocated memory is still 221.2MB. Free memory was 182.8MB in the beginning and 181.9MB in the end (delta: 971.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 227.19ms. Allocated memory is still 221.2MB. Free memory was 181.8MB in the beginning and 172.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 850245.47ms. Allocated memory was 221.2MB in the beginning and 585.1MB in the end (delta: 363.9MB). Free memory was 171.9MB in the beginning and 495.2MB in the end (delta: -323.3MB). Peak memory consumption was 391.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 17ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 17ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 17ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 17ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 850.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 36.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 498, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1329 ConstructedInterpolants, 1 QuantifiedInterpolants, 15896 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1139 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 1135/2745 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown