/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:20:47,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:20:47,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:20:47,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-16 22:20:47,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:20:47,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:20:47,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:20:47,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:20:47,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:20:47,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:20:47,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:20:47,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:20:47,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:20:47,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:20:47,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:20:47,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:20:47,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:20:47,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:20:47,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:20:47,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:20:47,525 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-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:20:47,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:20:47,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:20:47,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:20:47,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:20:47,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:20:47,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:20:47,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:20:47,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:20:47,552 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:20:47,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:20:47,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:20:47,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:20:47,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:20:47,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:20:47,555 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:20:47,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:20:47,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:20:47,555 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:20:47,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:20:47,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:20:47,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:20:47,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:20:47,765 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:20:47,767 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:20:47,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-equiv.wvr.bpl [2022-03-16 22:20:47,768 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-equiv.wvr.bpl' [2022-03-16 22:20:47,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:20:47,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:20:47,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:20:47,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:20:47,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:20:47,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,806 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:20:47,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:20:47,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:20:47,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:20:47,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:20:47,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:20:47,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:20:47,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:20:47,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:20:47,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/1) ... [2022-03-16 22:20:47,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:20:47,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:20:47,845 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) [2022-03-16 22:20:47,849 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 [2022-03-16 22:20:47,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:20:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:20:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:20:47,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:20:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:20:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:20:47,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:20:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:20:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:20:47,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 22:20:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 22:20:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 22:20:47,878 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:20:47,908 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:20:47,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:20:47,978 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:20:47,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:20:47,988 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:20:47,989 INFO L202 PluginConnector]: Adding new model mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:20:47 BoogieIcfgContainer [2022-03-16 22:20:47,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:20:47,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:20:47,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:20:47,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:20:47,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:20:47" (1/2) ... [2022-03-16 22:20:47,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6b70fe and model type mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:20:47, skipping insertion in model container [2022-03-16 22:20:47,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:20:47" (2/2) ... [2022-03-16 22:20:47,994 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-equiv.wvr.bpl [2022-03-16 22:20:47,997 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:20:47,997 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:20:47,997 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:20:47,997 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:20:48,020 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 22:20:48,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:20:48,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:20:48,088 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) [2022-03-16 22:20:48,124 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 [2022-03-16 22:20:48,130 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:20:48,136 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 22:20:48,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 22:20:48,325 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 316 transitions and produced 285 states. [2022-03-16 22:20:48,326 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:20:48,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:20:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash -663598480, now seen corresponding path program 1 times [2022-03-16 22:20:48,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:20:48,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134942746] [2022-03-16 22:20:48,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:20:48,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:20:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:20:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-03-16 22:20:48,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:20:48,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134942746] [2022-03-16 22:20:48,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134942746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 22:20:48,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 22:20:48,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-16 22:20:48,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953006542] [2022-03-16 22:20:48,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 22:20:48,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-16 22:20:48,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:20:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-16 22:20:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-16 22:20:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:20:48,687 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:20:48,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-03-16 22:20:48,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:20:48,788 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 240 transitions and produced 220 states. [2022-03-16 22:20:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:20:48,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 22:20:48,789 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:20:48,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:20:48,791 INFO L85 PathProgramCache]: Analyzing trace with hash 378059508, now seen corresponding path program 2 times [2022-03-16 22:20:48,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:20:48,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750397041] [2022-03-16 22:20:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:20:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:20:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:20:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 21 proven. 200 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-16 22:20:49,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:20:49,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750397041] [2022-03-16 22:20:49,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750397041] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:20:49,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841285091] [2022-03-16 22:20:49,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:20:49,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:20:49,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:20:49,187 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) [2022-03-16 22:20:49,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:20:49,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:20:49,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:20:49,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 52 conjunts are in the unsatisfiable core [2022-03-16 22:20:49,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:20:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 121 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:20:50,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:20:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 298 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:20:51,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841285091] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:20:51,723 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:20:51,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 41, 29] total 83 [2022-03-16 22:20:51,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587541618] [2022-03-16 22:20:51,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:20:51,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-03-16 22:20:51,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:20:51,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-03-16 22:20:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2261, Invalid=4711, Unknown=0, NotChecked=0, Total=6972 [2022-03-16 22:20:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:20:51,729 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:20:51,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 1.9761904761904763) internal successors, (166), 83 states have internal predecessors, (166), 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) [2022-03-16 22:20:51,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:20:51,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:20:53,457 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 357 transitions and produced 312 states. [2022-03-16 22:20:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:20:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:20:53,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 22:20:53,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-16 22:20:53,668 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:20:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:20:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1444580744, now seen corresponding path program 3 times [2022-03-16 22:20:53,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:20:53,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942199528] [2022-03-16 22:20:53,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:20:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:20:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:20:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 0 proven. 803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:20:55,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:20:55,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942199528] [2022-03-16 22:20:55,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942199528] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:20:55,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763019228] [2022-03-16 22:20:55,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:20:55,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:20:55,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:20:55,394 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) [2022-03-16 22:20:55,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:20:55,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-03-16 22:20:55,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:20:55,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 105 conjunts are in the unsatisfiable core [2022-03-16 22:20:55,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:20:56,879 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 0 proven. 803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:20:56,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:20:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 0 proven. 803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:20:58,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763019228] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:20:58,234 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:20:58,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 43, 43] total 101 [2022-03-16 22:20:58,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915141674] [2022-03-16 22:20:58,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:20:58,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-03-16 22:20:58,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:20:58,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-03-16 22:20:58,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=9972, Unknown=0, NotChecked=0, Total=10302 [2022-03-16 22:20:58,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:20:58,239 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:20:58,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.803921568627451) internal successors, (184), 101 states have internal predecessors, (184), 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) [2022-03-16 22:20:58,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:20:58,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:20:58,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:02,351 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 390 transitions and produced 339 states. [2022-03-16 22:21:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:02,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:21:02,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:02,567 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:02,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:02,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1017677458, now seen corresponding path program 4 times [2022-03-16 22:21:02,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:02,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470604414] [2022-03-16 22:21:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:02,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 300 proven. 626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:03,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:21:03,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470604414] [2022-03-16 22:21:03,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470604414] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:21:03,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322162570] [2022-03-16 22:21:03,585 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:21:03,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:03,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:21:03,586 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) [2022-03-16 22:21:03,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:21:03,645 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:21:03,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:21:03,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 106 conjunts are in the unsatisfiable core [2022-03-16 22:21:03,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:21:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 9 proven. 917 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:05,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:21:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 485 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:08,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322162570] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:21:08,421 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:21:08,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 47] total 151 [2022-03-16 22:21:08,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883514722] [2022-03-16 22:21:08,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:21:08,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2022-03-16 22:21:08,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:21:08,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2022-03-16 22:21:08,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4545, Invalid=18407, Unknown=0, NotChecked=0, Total=22952 [2022-03-16 22:21:08,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:08,430 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:21:08,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 1.618421052631579) internal successors, (246), 151 states have internal predecessors, (246), 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) [2022-03-16 22:21:08,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:08,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:08,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:08,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:14,495 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 392 transitions and produced 324 states. [2022-03-16 22:21:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-03-16 22:21:14,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 22:21:14,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:14,712 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:14,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1448027804, now seen corresponding path program 1 times [2022-03-16 22:21:14,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:14,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760153660] [2022-03-16 22:21:14,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:14,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:16,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:21:16,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760153660] [2022-03-16 22:21:16,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760153660] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:21:16,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919111569] [2022-03-16 22:21:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:16,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:16,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:21:16,284 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) [2022-03-16 22:21:16,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:21:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:16,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 113 conjunts are in the unsatisfiable core [2022-03-16 22:21:16,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:21:17,546 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:17,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:21:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:18,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919111569] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:21:18,662 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:21:18,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 46, 46] total 112 [2022-03-16 22:21:18,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149870773] [2022-03-16 22:21:18,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:21:18,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-03-16 22:21:18,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:21:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-03-16 22:21:18,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=12280, Unknown=0, NotChecked=0, Total=12656 [2022-03-16 22:21:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:18,666 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:21:18,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 1.761061946902655) internal successors, (199), 112 states have internal predecessors, (199), 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) [2022-03-16 22:21:18,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:18,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:18,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:18,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2022-03-16 22:21:18,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:23,395 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 495 transitions and produced 424 states. [2022-03-16 22:21:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:23,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 22:21:23,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:23,612 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:23,612 INFO L85 PathProgramCache]: Analyzing trace with hash -564944142, now seen corresponding path program 5 times [2022-03-16 22:21:23,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:23,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38235015] [2022-03-16 22:21:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:23,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 484 proven. 951 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-03-16 22:21:24,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:21:24,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38235015] [2022-03-16 22:21:24,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38235015] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:21:24,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945243739] [2022-03-16 22:21:24,630 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:21:24,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:24,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:21:24,631 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) [2022-03-16 22:21:24,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 22:21:24,709 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2022-03-16 22:21:24,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:21:24,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-16 22:21:24,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:21:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 625 proven. 832 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-16 22:21:26,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:21:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 881 proven. 576 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-16 22:21:27,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945243739] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:21:27,379 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:21:27,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 77, 52] total 129 [2022-03-16 22:21:27,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940968977] [2022-03-16 22:21:27,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:21:27,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-03-16 22:21:27,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:21:27,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-03-16 22:21:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4513, Invalid=12257, Unknown=0, NotChecked=0, Total=16770 [2022-03-16 22:21:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:27,383 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:21:27,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 1.8153846153846154) internal successors, (236), 129 states have internal predecessors, (236), 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) [2022-03-16 22:21:27,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:27,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:27,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:27,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:27,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:27,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:30,519 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 479 transitions and produced 407 states. [2022-03-16 22:21:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:30,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 22:21:30,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:30,736 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:30,736 INFO L85 PathProgramCache]: Analyzing trace with hash -737333108, now seen corresponding path program 2 times [2022-03-16 22:21:30,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:30,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093958468] [2022-03-16 22:21:30,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:30,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 941 proven. 676 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-16 22:21:31,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:21:31,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093958468] [2022-03-16 22:21:31,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093958468] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:21:31,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584253113] [2022-03-16 22:21:31,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:21:31,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:31,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:21:31,577 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) [2022-03-16 22:21:31,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 22:21:31,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:21:31,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:21:31,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 85 conjunts are in the unsatisfiable core [2022-03-16 22:21:31,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:21:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 961 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:33,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:21:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 961 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:35,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584253113] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:21:35,070 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:21:35,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 85, 85] total 169 [2022-03-16 22:21:35,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695151696] [2022-03-16 22:21:35,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:21:35,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 170 states [2022-03-16 22:21:35,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:21:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2022-03-16 22:21:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8712, Invalid=20018, Unknown=0, NotChecked=0, Total=28730 [2022-03-16 22:21:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:35,074 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:21:35,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 170 states, 170 states have (on average 1.5294117647058822) internal successors, (260), 169 states have internal predecessors, (260), 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) [2022-03-16 22:21:35,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:35,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:35,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:35,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:35,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:35,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:35,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:37,349 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 534 transitions and produced 443 states. [2022-03-16 22:21:37,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:37,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:37,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:21:37,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 22:21:37,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:37,565 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1188082146, now seen corresponding path program 3 times [2022-03-16 22:21:37,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:37,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546909319] [2022-03-16 22:21:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:37,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:40,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:21:40,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546909319] [2022-03-16 22:21:40,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546909319] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:21:40,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868710530] [2022-03-16 22:21:40,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:21:40,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:40,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:21:40,259 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) [2022-03-16 22:21:40,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 22:21:40,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-03-16 22:21:40,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:21:40,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 158 conjunts are in the unsatisfiable core [2022-03-16 22:21:40,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:21:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:42,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:21:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:21:44,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868710530] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:21:44,560 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:21:44,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 64, 64] total 157 [2022-03-16 22:21:44,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351625006] [2022-03-16 22:21:44,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:21:44,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2022-03-16 22:21:44,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:21:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2022-03-16 22:21:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=529, Invalid=24277, Unknown=0, NotChecked=0, Total=24806 [2022-03-16 22:21:44,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:44,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:21:44,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 1.7151898734177216) internal successors, (271), 157 states have internal predecessors, (271), 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) [2022-03-16 22:21:44,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:44,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:44,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:44,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:44,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:44,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:44,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:21:44,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:49,910 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 627 transitions and produced 535 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:21:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:21:49,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 22:21:50,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-03-16 22:21:50,127 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1592032764, now seen corresponding path program 6 times [2022-03-16 22:21:50,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:50,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830603492] [2022-03-16 22:21:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:21:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 900 proven. 1526 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:21:52,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:21:52,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830603492] [2022-03-16 22:21:52,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830603492] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:21:52,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846702443] [2022-03-16 22:21:52,516 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:21:52,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:52,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:21:52,517 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) [2022-03-16 22:21:52,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 22:21:52,624 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2022-03-16 22:21:52,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:21:52,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-16 22:21:52,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:21:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 961 proven. 1465 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:21:54,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:21:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1465 proven. 961 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:21:55,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846702443] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:21:55,642 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:21:55,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 65] total 161 [2022-03-16 22:21:55,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589971218] [2022-03-16 22:21:55,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:21:55,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2022-03-16 22:21:55,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:21:55,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2022-03-16 22:21:55,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6809, Invalid=19273, Unknown=0, NotChecked=0, Total=26082 [2022-03-16 22:21:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:55,655 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:21:55,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 1.7160493827160495) internal successors, (278), 161 states have internal predecessors, (278), 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) [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:21:55,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:21:55,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:21:59,586 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 652 transitions and produced 556 states. [2022-03-16 22:21:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:21:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:21:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:21:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:21:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:21:59,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:21:59,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:21:59,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:21:59,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:21:59,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 22:21:59,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:21:59,805 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:21:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:21:59,805 INFO L85 PathProgramCache]: Analyzing trace with hash -872317358, now seen corresponding path program 7 times [2022-03-16 22:21:59,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:21:59,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49453185] [2022-03-16 22:21:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:21:59,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:21:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2818 backedges. 1262 proven. 1553 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:22:02,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:22:02,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49453185] [2022-03-16 22:22:02,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49453185] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:22:02,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31937663] [2022-03-16 22:22:02,867 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:22:02,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:22:02,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:02,869 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) [2022-03-16 22:22:02,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 22:22:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:02,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 186 conjunts are in the unsatisfiable core [2022-03-16 22:22:02,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:22:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2818 backedges. 12 proven. 2806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:07,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:22:12,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2818 backedges. 1522 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:12,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31937663] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:22:12,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:22:12,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 115, 79] total 266 [2022-03-16 22:22:12,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831136587] [2022-03-16 22:22:12,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:22:12,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-03-16 22:22:12,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:22:12,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-03-16 22:22:12,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14843, Invalid=56179, Unknown=0, NotChecked=0, Total=71022 [2022-03-16 22:22:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:12,509 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:22:12,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 267 states, 267 states have (on average 1.5767790262172285) internal successors, (421), 266 states have internal predecessors, (421), 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) [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:22:12,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:22:12,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:22:12,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:22:12,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:26,263 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 714 transitions and produced 600 states. [2022-03-16 22:22:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:22:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:22:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:22:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:22:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:22:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:22:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:22:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:22:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:22:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:22:26,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 22:22:26,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 22:22:26,480 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:22:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:22:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1040884046, now seen corresponding path program 4 times [2022-03-16 22:22:26,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:22:26,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305388250] [2022-03-16 22:22:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:22:26,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:22:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3706 backedges. 2013 proven. 1681 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:22:28,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:22:28,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305388250] [2022-03-16 22:22:28,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305388250] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:22:28,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341866059] [2022-03-16 22:22:28,308 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:22:28,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:22:28,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:28,309 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) [2022-03-16 22:22:28,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 22:22:28,376 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:22:28,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:22:28,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 129 conjunts are in the unsatisfiable core [2022-03-16 22:22:28,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:22:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3706 backedges. 2025 proven. 1681 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:30,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:22:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3706 backedges. 2025 proven. 1681 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:34,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341866059] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:22:34,454 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:22:34,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 129, 129] total 257 [2022-03-16 22:22:34,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022764320] [2022-03-16 22:22:34,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:22:34,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-03-16 22:22:34,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:22:34,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-03-16 22:22:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19379, Invalid=46927, Unknown=0, NotChecked=0, Total=66306 [2022-03-16 22:22:34,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:34,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:22:34,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 1.4573643410852712) internal successors, (376), 257 states have internal predecessors, (376), 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) [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:22:34,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:22:34,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:22:34,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:42,329 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 758 transitions and produced 630 states. [2022-03-16 22:22:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:22:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:22:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:22:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:22:42,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 22:22:42,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-16 22:22:42,544 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:22:42,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:22:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash -358334678, now seen corresponding path program 5 times [2022-03-16 22:22:42,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:22:42,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235726903] [2022-03-16 22:22:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:22:42,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:22:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:22:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:47,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:22:47,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235726903] [2022-03-16 22:22:47,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235726903] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:22:47,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993547213] [2022-03-16 22:22:47,579 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:22:47,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:22:47,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:22:47,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:22:47,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 22:22:47,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2022-03-16 22:22:47,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:22:47,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 228 conjunts are in the unsatisfiable core [2022-03-16 22:22:47,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:22:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:52,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:22:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4050 backedges. 0 proven. 4050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:22:56,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993547213] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:22:56,949 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:22:56,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [137, 92, 92] total 227 [2022-03-16 22:22:56,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547291472] [2022-03-16 22:22:56,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:22:56,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2022-03-16 22:22:56,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:22:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2022-03-16 22:22:56,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=767, Invalid=50989, Unknown=0, NotChecked=0, Total=51756 [2022-03-16 22:22:56,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:22:56,954 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:22:56,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 228 states, 228 states have (on average 1.6798245614035088) internal successors, (383), 227 states have internal predecessors, (383), 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) [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:22:56,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:08,849 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 851 transitions and produced 719 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:23:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:23:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:23:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:23:08,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 22:23:09,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-16 22:23:09,055 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:23:09,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:09,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1783472316, now seen corresponding path program 8 times [2022-03-16 22:23:09,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:09,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496426820] [2022-03-16 22:23:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:09,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 1936 proven. 2842 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:23:12,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:12,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496426820] [2022-03-16 22:23:12,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496426820] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:12,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140107501] [2022-03-16 22:23:12,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:23:12,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:12,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:12,814 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:23:12,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 22:23:12,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:23:12,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:12,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 138 conjunts are in the unsatisfiable core [2022-03-16 22:23:12,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 2025 proven. 2753 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:23:15,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:23:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 2753 proven. 2025 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:23:17,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140107501] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:23:17,621 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:23:17,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [138, 138, 93] total 231 [2022-03-16 22:23:17,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879740638] [2022-03-16 22:23:17,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:23:17,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 232 states [2022-03-16 22:23:17,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:23:17,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 232 interpolants. [2022-03-16 22:23:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13970, Invalid=39622, Unknown=0, NotChecked=0, Total=53592 [2022-03-16 22:23:17,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:17,627 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:23:17,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 232 states, 232 states have (on average 1.6810344827586208) internal successors, (390), 231 states have internal predecessors, (390), 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) [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:23:17,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:26,299 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 876 transitions and produced 740 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:23:26,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:23:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:23:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:23:26,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 22:23:26,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-16 22:23:26,507 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:23:26,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2013502054, now seen corresponding path program 9 times [2022-03-16 22:23:26,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:26,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244097872] [2022-03-16 22:23:26,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 5310 backedges. 2452 proven. 2855 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:23:31,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:31,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244097872] [2022-03-16 22:23:31,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244097872] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:31,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456895256] [2022-03-16 22:23:31,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:23:31,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:31,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:31,551 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:23:31,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 22:23:31,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2022-03-16 22:23:31,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:31,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 157 conjunts are in the unsatisfiable core [2022-03-16 22:23:31,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5310 backedges. 2656 proven. 2654 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:35,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:23:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5310 backedges. 2810 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:38,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456895256] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:23:38,263 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:23:38,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [153, 157, 106] total 269 [2022-03-16 22:23:38,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951892325] [2022-03-16 22:23:38,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:23:38,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 270 states [2022-03-16 22:23:38,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:23:38,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 270 interpolants. [2022-03-16 22:23:38,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19751, Invalid=52879, Unknown=0, NotChecked=0, Total=72630 [2022-03-16 22:23:38,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:38,290 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:23:38,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 270 states, 270 states have (on average 1.7) internal successors, (459), 269 states have internal predecessors, (459), 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) [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:23:38,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:49,300 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 943 transitions and produced 789 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:23:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:23:49,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-16 22:23:49,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:49,508 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:23:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:49,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1966391384, now seen corresponding path program 6 times [2022-03-16 22:23:49,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:49,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479339022] [2022-03-16 22:23:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:49,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 6625 backedges. 3580 proven. 3025 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-16 22:23:52,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:52,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479339022] [2022-03-16 22:23:52,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479339022] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:52,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172308659] [2022-03-16 22:23:52,812 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:23:52,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:52,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:52,814 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:23:52,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-16 22:23:53,001 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2022-03-16 22:23:53,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:53,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 172 conjunts are in the unsatisfiable core [2022-03-16 22:23:53,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6625 backedges. 3600 proven. 3025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:58,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:24:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6625 backedges. 3600 proven. 3025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:03,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172308659] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:24:03,808 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:24:03,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 172, 172] total 343 [2022-03-16 22:24:03,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473313222] [2022-03-16 22:24:03,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:24:03,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 344 states [2022-03-16 22:24:03,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:24:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 344 interpolants. [2022-03-16 22:24:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34348, Invalid=83644, Unknown=0, NotChecked=0, Total=117992 [2022-03-16 22:24:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:03,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:24:03,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 344 states, 344 states have (on average 1.430232558139535) internal successors, (492), 343 states have internal predecessors, (492), 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) [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:24:03,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:24:03,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:24:03,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:24:03,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:24:03,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:21,362 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 998 transitions and produced 825 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:24:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:24:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:24:21,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-03-16 22:24:21,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-16 22:24:21,569 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:24:21,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:24:21,570 INFO L85 PathProgramCache]: Analyzing trace with hash 165917358, now seen corresponding path program 7 times [2022-03-16 22:24:21,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:24:21,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362307270] [2022-03-16 22:24:21,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:24:21,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:24:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:24:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 0 proven. 7200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:31,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:24:31,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362307270] [2022-03-16 22:24:31,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362307270] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:24:31,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583101479] [2022-03-16 22:24:31,516 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:24:31,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:24:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:24:31,518 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:24:31,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-16 22:24:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:24:31,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 303 conjunts are in the unsatisfiable core [2022-03-16 22:24:31,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:24:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 0 proven. 7200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:38,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:24:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 0 proven. 7200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:46,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583101479] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:24:46,329 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:24:46,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [182, 122, 122] total 302 [2022-03-16 22:24:46,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439124653] [2022-03-16 22:24:46,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:24:46,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 303 states [2022-03-16 22:24:46,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:24:46,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 303 interpolants. [2022-03-16 22:24:46,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1022, Invalid=90484, Unknown=0, NotChecked=0, Total=91506 [2022-03-16 22:24:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:46,336 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:24:46,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 303 states, 303 states have (on average 1.66006600660066) internal successors, (503), 302 states have internal predecessors, (503), 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) [2022-03-16 22:24:46,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:24:46,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:24:46,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:24:46,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:24:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:25:07,110 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1091 transitions and produced 917 states. [2022-03-16 22:25:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:25:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:25:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:25:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:25:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:25:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:25:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:25:07,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-03-16 22:25:07,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-16 22:25:07,332 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:25:07,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:25:07,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1879470904, now seen corresponding path program 10 times [2022-03-16 22:25:07,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:25:07,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376814285] [2022-03-16 22:25:07,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:25:07,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:25:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:25:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 8225 backedges. 3481 proven. 4687 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:25:13,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:25:13,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376814285] [2022-03-16 22:25:13,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376814285] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:25:13,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410416479] [2022-03-16 22:25:13,497 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:25:13,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:25:13,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:25:13,499 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:25:13,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-16 22:25:13,605 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:25:13,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:25:13,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 183 conjunts are in the unsatisfiable core [2022-03-16 22:25:13,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:25:18,412 INFO L134 CoverageAnalysis]: Checked inductivity of 8225 backedges. 3600 proven. 4568 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:25:18,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:25:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 8225 backedges. 4568 proven. 3600 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:25:21,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410416479] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:25:21,602 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:25:21,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [183, 183, 123] total 306 [2022-03-16 22:25:21,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477742298] [2022-03-16 22:25:21,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:25:21,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 307 states [2022-03-16 22:25:21,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:25:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 307 interpolants. [2022-03-16 22:25:21,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24470, Invalid=69472, Unknown=0, NotChecked=0, Total=93942 [2022-03-16 22:25:21,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:25:21,612 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:25:21,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 307 states, 307 states have (on average 1.6612377850162867) internal successors, (510), 306 states have internal predecessors, (510), 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) [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:25:21,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:25:35,337 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1116 transitions and produced 938 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:25:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:25:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:25:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:25:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:25:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:25:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:25:35,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-03-16 22:25:35,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-16 22:25:35,550 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:25:35,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:25:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1898217954, now seen corresponding path program 11 times [2022-03-16 22:25:35,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:25:35,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470365080] [2022-03-16 22:25:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:25:35,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:25:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:25:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 4162 proven. 4685 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:25:41,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:25:41,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470365080] [2022-03-16 22:25:41,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470365080] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:25:41,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056402984] [2022-03-16 22:25:41,821 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:25:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:25:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:25:41,822 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:25:41,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-16 22:25:42,097 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 69 check-sat command(s) [2022-03-16 22:25:42,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:25:42,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 331 conjunts are in the unsatisfiable core [2022-03-16 22:25:42,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:25:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 12 proven. 8838 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:25:53,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:26:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 4625 proven. 4225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:26:09,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056402984] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:26:09,145 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:26:09,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [198, 202, 137] total 469 [2022-03-16 22:26:09,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306288020] [2022-03-16 22:26:09,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:26:09,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 470 states [2022-03-16 22:26:09,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:26:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 470 interpolants. [2022-03-16 22:26:09,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44626, Invalid=175804, Unknown=0, NotChecked=0, Total=220430 [2022-03-16 22:26:09,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:26:09,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:26:09,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 470 states, 470 states have (on average 1.5127659574468084) internal successors, (711), 469 states have internal predecessors, (711), 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) [2022-03-16 22:26:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:26:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:26:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:26:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:26:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:26:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:26:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:27:04,687 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1178 transitions and produced 982 states. [2022-03-16 22:27:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:27:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:27:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:27:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:27:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:27:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:27:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:27:04,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-16 22:27:04,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-16 22:27:04,913 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:27:04,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:27:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash -370763906, now seen corresponding path program 8 times [2022-03-16 22:27:04,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:27:04,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451927692] [2022-03-16 22:27:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:27:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:27:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:27:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 10376 backedges. 5464 proven. 4900 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:27:10,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:27:10,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451927692] [2022-03-16 22:27:10,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451927692] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:27:10,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643728817] [2022-03-16 22:27:10,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:27:10,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:27:10,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:27:10,083 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:27:10,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-16 22:27:10,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:27:10,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:27:10,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 216 conjunts are in the unsatisfiable core [2022-03-16 22:27:10,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:27:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 10376 backedges. 5476 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:27:16,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:27:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 10376 backedges. 5476 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:27:22,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643728817] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:27:22,207 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:27:22,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 216, 216] total 431 [2022-03-16 22:27:22,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94552299] [2022-03-16 22:27:22,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:27:22,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 432 states [2022-03-16 22:27:22,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:27:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 432 interpolants. [2022-03-16 22:27:22,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53367, Invalid=132825, Unknown=0, NotChecked=0, Total=186192 [2022-03-16 22:27:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:27:22,223 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:27:22,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 432 states, 432 states have (on average 1.4074074074074074) internal successors, (608), 431 states have internal predecessors, (608), 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) [2022-03-16 22:27:22,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:27:22,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:27:22,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:27:22,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:27:22,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:27:59,000 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1222 transitions and produced 1012 states. [2022-03-16 22:27:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:27:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:27:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:27:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:27:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:27:59,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-03-16 22:27:59,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:27:59,210 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:27:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:27:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1651971082, now seen corresponding path program 9 times [2022-03-16 22:27:59,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:27:59,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275946663] [2022-03-16 22:27:59,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:27:59,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:27:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:28:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10952 backedges. 0 proven. 10952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:28:13,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:28:13,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275946663] [2022-03-16 22:28:13,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275946663] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:28:13,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326411557] [2022-03-16 22:28:13,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:28:13,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:28:13,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:28:13,453 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:28:13,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-16 22:28:13,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 75 check-sat command(s) [2022-03-16 22:28:13,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:28:13,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 373 conjunts are in the unsatisfiable core [2022-03-16 22:28:13,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:28:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 10952 backedges. 0 proven. 10952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:28:24,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:28:33,637 INFO L134 CoverageAnalysis]: Checked inductivity of 10952 backedges. 0 proven. 10952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:28:33,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326411557] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:28:33,638 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:28:33,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [224, 150, 150] total 372 [2022-03-16 22:28:33,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509757758] [2022-03-16 22:28:33,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:28:33,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 373 states [2022-03-16 22:28:33,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:28:33,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 373 interpolants. [2022-03-16 22:28:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1260, Invalid=137496, Unknown=0, NotChecked=0, Total=138756 [2022-03-16 22:28:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:28:33,644 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:28:33,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 373 states, 373 states have (on average 1.648793565683646) internal successors, (615), 372 states have internal predecessors, (615), 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) [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:28:33,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:00,591 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1315 transitions and produced 1101 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:29:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:29:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:29:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:29:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:29:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:29:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:29:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:29:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:29:00,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-03-16 22:29:00,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:29:00,801 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:29:00,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:29:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash -140600816, now seen corresponding path program 12 times [2022-03-16 22:29:00,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:29:00,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487839020] [2022-03-16 22:29:00,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:00,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:29:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 12201 backedges. 5329 proven. 6815 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:29:09,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:29:09,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487839020] [2022-03-16 22:29:09,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487839020] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:29:09,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715803648] [2022-03-16 22:29:09,541 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:29:09,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:29:09,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:29:09,542 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:29:09,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-16 22:29:09,845 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 83 check-sat command(s) [2022-03-16 22:29:09,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:29:09,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 225 conjunts are in the unsatisfiable core [2022-03-16 22:29:09,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:29:16,353 INFO L134 CoverageAnalysis]: Checked inductivity of 12201 backedges. 5476 proven. 6668 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:29:16,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:29:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12201 backedges. 6668 proven. 5476 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-16 22:29:21,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715803648] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:29:21,379 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:29:21,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [225, 225, 151] total 376 [2022-03-16 22:29:21,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141422809] [2022-03-16 22:29:21,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:29:21,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 377 states [2022-03-16 22:29:21,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:29:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 377 interpolants. [2022-03-16 22:29:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36909, Invalid=104843, Unknown=0, NotChecked=0, Total=141752 [2022-03-16 22:29:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:21,391 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:29:21,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 377 states, 377 states have (on average 1.6498673740053051) internal successors, (622), 376 states have internal predecessors, (622), 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) [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:29:21,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:29:21,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:29:41,976 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1340 transitions and produced 1122 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:29:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:29:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 522 states. [2022-03-16 22:29:42,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-16 22:29:42,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:29:42,194 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:29:42,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:29:42,195 INFO L85 PathProgramCache]: Analyzing trace with hash -374959770, now seen corresponding path program 13 times [2022-03-16 22:29:42,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:29:42,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287577286] [2022-03-16 22:29:42,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:29:42,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:29:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12966 backedges. 6164 proven. 6799 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:29:50,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:29:50,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287577286] [2022-03-16 22:29:50,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287577286] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:29:50,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661774300] [2022-03-16 22:29:50,314 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:29:50,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:29:50,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:29:50,316 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:29:50,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-16 22:29:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:29:50,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 401 conjunts are in the unsatisfiable core [2022-03-16 22:29:50,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:30:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12966 backedges. 12 proven. 12954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:30:07,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:30:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12966 backedges. 6725 proven. 6241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:30:33,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661774300] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:30:33,383 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:30:33,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [240, 244, 165] total 567 [2022-03-16 22:30:33,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803854687] [2022-03-16 22:30:33,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:30:33,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 568 states [2022-03-16 22:30:33,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:30:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 568 interpolants. [2022-03-16 22:30:33,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64723, Invalid=257333, Unknown=0, NotChecked=0, Total=322056 [2022-03-16 22:30:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:30:33,412 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:30:33,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 568 states, 568 states have (on average 1.4982394366197183) internal successors, (851), 567 states have internal predecessors, (851), 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) [2022-03-16 22:30:33,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:30:33,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:30:33,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:30:33,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:30:33,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:30:33,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 522 states. [2022-03-16 22:30:33,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:32:09,142 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1402 transitions and produced 1166 states. [2022-03-16 22:32:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:32:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:32:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:32:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:32:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:32:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 522 states. [2022-03-16 22:32:09,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 575 states. [2022-03-16 22:32:09,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-03-16 22:32:09,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:32:09,360 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:32:09,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:32:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1686511814, now seen corresponding path program 10 times [2022-03-16 22:32:09,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:32:09,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109935082] [2022-03-16 22:32:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:32:09,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:32:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:32:15,471 INFO L134 CoverageAnalysis]: Checked inductivity of 14800 backedges. 7732 proven. 7056 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:32:15,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:32:15,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109935082] [2022-03-16 22:32:15,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109935082] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:32:15,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425663543] [2022-03-16 22:32:15,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:32:15,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:32:15,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:32:15,472 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:32:15,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-03-16 22:32:15,695 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:32:15,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:32:15,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 258 conjunts are in the unsatisfiable core [2022-03-16 22:32:15,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:32:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 14800 backedges. 7744 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:32:26,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:32:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 14800 backedges. 7744 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:32:37,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425663543] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:32:37,425 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:32:37,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [171, 258, 258] total 515 [2022-03-16 22:32:37,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353591925] [2022-03-16 22:32:37,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:32:37,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 516 states [2022-03-16 22:32:37,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:32:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 516 interpolants. [2022-03-16 22:32:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75795, Invalid=189945, Unknown=0, NotChecked=0, Total=265740 [2022-03-16 22:32:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:32:37,448 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:32:37,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 516 states, 516 states have (on average 1.3953488372093024) internal successors, (720), 515 states have internal predecessors, (720), 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) [2022-03-16 22:32:37,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:32:37,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 522 states. [2022-03-16 22:32:37,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 575 states. [2022-03-16 22:32:37,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:33:47,981 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1446 transitions and produced 1196 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 22:33:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 375 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 522 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 575 states. [2022-03-16 22:33:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2022-03-16 22:33:47,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-03-16 22:33:48,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:33:48,200 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:33:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:33:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash -92230338, now seen corresponding path program 11 times [2022-03-16 22:33:48,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:33:48,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704872876] [2022-03-16 22:33:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:33:48,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:33:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:34:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 15488 backedges. 0 proven. 15488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:34:07,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:34:07,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704872876] [2022-03-16 22:34:07,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704872876] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:34:07,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332577312] [2022-03-16 22:34:07,011 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:34:07,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:34:07,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:34:07,012 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:34:07,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-03-16 22:34:07,404 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 89 check-sat command(s) [2022-03-16 22:34:07,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:34:07,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 443 conjunts are in the unsatisfiable core [2022-03-16 22:34:07,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:34:22,679 INFO L134 CoverageAnalysis]: Checked inductivity of 15488 backedges. 0 proven. 15488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:34:22,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-16 22:34:27,694 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 22:34:27,701 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 22:34:27,703 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 [2022-03-16 22:34:27,703 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 [2022-03-16 22:34:27,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-03-16 22:34:27,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:34:27,895 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 368 with TraceHistMax 88,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 391 known predicates. [2022-03-16 22:34:27,896 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 22:34:27,896 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 22:34:27,896 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 22:34:27,900 INFO L732 BasicCegarLoop]: Path program histogram: [13, 11] [2022-03-16 22:34:27,902 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:34:27,902 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:34:27,905 INFO L202 PluginConnector]: Adding new model mult-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:34:27 BasicIcfg [2022-03-16 22:34:27,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:34:27,905 INFO L158 Benchmark]: Toolchain (without parser) took 820119.68ms. Allocated memory was 201.3MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 160.4MB in the beginning and 232.9MB in the end (delta: -72.4MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-16 22:34:27,905 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 201.3MB. Free memory is still 161.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:34:27,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.09ms. Allocated memory is still 201.3MB. Free memory was 160.4MB in the beginning and 158.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:34:27,905 INFO L158 Benchmark]: Boogie Preprocessor took 11.07ms. Allocated memory is still 201.3MB. Free memory was 158.8MB in the beginning and 157.9MB in the end (delta: 936.1kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 22:34:27,906 INFO L158 Benchmark]: RCFGBuilder took 169.90ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 148.5MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 22:34:27,906 INFO L158 Benchmark]: TraceAbstraction took 819914.47ms. Allocated memory was 201.3MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 148.0MB in the beginning and 232.9MB in the end (delta: -84.9MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-16 22:34:27,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 201.3MB. Free memory is still 161.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.09ms. Allocated memory is still 201.3MB. Free memory was 160.4MB in the beginning and 158.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 11.07ms. Allocated memory is still 201.3MB. Free memory was 158.8MB in the beginning and 157.9MB in the end (delta: 936.1kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 169.90ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 148.5MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 819914.47ms. Allocated memory was 201.3MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 148.0MB in the beginning and 232.9MB in the end (delta: -84.9MB). Peak memory consumption was 1.5GB. 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: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 368 with TraceHistMax 88,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 391 known predicates. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 368 with TraceHistMax 88,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 391 known predicates. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 368 with TraceHistMax 88,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 391 known predicates. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 368 with TraceHistMax 88,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 391 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 39 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 819.8s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 443.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5877, 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: 0.4s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 327.1s InterpolantComputationTime, 9297 NumberOfCodeBlocks, 9297 NumberOfCodeBlocksAsserted, 552 NumberOfCheckSat, 13832 ConstructedInterpolants, 0 QuantifiedInterpolants, 91879 SizeOfPredicates, 272 NumberOfNonLiveVariables, 11560 ConjunctsInSsa, 4092 ConjunctsInUnsatCore, 67 InterpolantComputations, 1 PerfectInterpolantSequences, 135966/371249 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