/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 23:21:52,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 23:21:52,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 23:21:52,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 23:21:52,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 23:21:52,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 23:21:52,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 23:21:52,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 23:21:52,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 23:21:52,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 23:21:52,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 23:21:52,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 23:21:52,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 23:21:52,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 23:21:52,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 23:21:52,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 23:21:52,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 23:21:52,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 23:21:52,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 23:21:52,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 23:21:52,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-09 23:21:52,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 23:21:52,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 23:21:52,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 23:21:52,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 23:21:52,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 23:21:52,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 23:21:52,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 23:21:52,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 23:21:52,448 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 23:21:52,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 23:21:52,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 23:21:52,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 23:21:52,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 23:21:52,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 23:21:52,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 23:21:52,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 23:21:52,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 23:21:52,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 23:21:52,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 23:21:52,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 23:21:52,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 23:21:52,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 23:21:52,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 23:21:52,454 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 23:21:52,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 23:21:52,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 23:21:52,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 23:21:52,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 23:21:52,671 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 23:21:52,673 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 23:21:52,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl [2022-02-09 23:21:52,675 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl' [2022-02-09 23:21:52,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 23:21:52,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 23:21:52,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 23:21:52,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 23:21:52,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 23:21:52,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,723 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 23:21:52,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 23:21:52,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 23:21:52,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 23:21:52,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 23:21:52,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 23:21:52,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 23:21:52,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 23:21:52,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 23:21:52,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/1) ... [2022-02-09 23:21:52,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 23:21:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:52,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 23:21:52,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 23:21:52,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 23:21:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 23:21:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 23:21:52,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 23:21:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 23:21:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 23:21:52,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 23:21:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 23:21:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 23:21:52,835 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 23:21:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 23:21:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 23:21:52,835 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 23:21:52,873 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 23:21:52,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 23:21:52,950 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 23:21:52,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 23:21:52,960 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 23:21:52,961 INFO L202 PluginConnector]: Adding new model mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:21:52 BoogieIcfgContainer [2022-02-09 23:21:52,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 23:21:52,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 23:21:52,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 23:21:52,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 23:21:52,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:21:52" (1/2) ... [2022-02-09 23:21:52,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463fc3ea and model type mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 11:21:52, skipping insertion in model container [2022-02-09 23:21:52,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-flipped-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:21:52" (2/2) ... [2022-02-09 23:21:52,967 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.bpl [2022-02-09 23:21:52,971 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 23:21:52,971 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 23:21:52,971 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 23:21:52,971 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 23:21:53,022 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 23:21:53,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 23:21:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:53,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 23:21:53,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 23:21:53,094 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 23:21:53,107 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 23:21:53,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 23:21:53,187 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 255 transitions and produced 211 states. [2022-02-09 23:21:53,189 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:21:53,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:53,192 INFO L85 PathProgramCache]: Analyzing trace with hash -193589418, now seen corresponding path program 1 times [2022-02-09 23:21:53,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:53,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392270605] [2022-02-09 23:21:53,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:53,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 60 proven. 167 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-09 23:21:53,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:53,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392270605] [2022-02-09 23:21:53,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392270605] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:53,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116722467] [2022-02-09 23:21:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:53,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:53,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:53,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:21:53,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 23:21:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:53,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-09 23:21:53,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 123 proven. 58 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-09 23:21:54,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 123 proven. 58 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-09 23:21:54,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116722467] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:54,200 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:54,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-02-09 23:21:54,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828930323] [2022-02-09 23:21:54,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:54,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-09 23:21:54,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-09 23:21:54,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-02-09 23:21:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:54,225 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:54,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 17 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:21:54,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:54,657 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 143 transitions and produced 131 states. [2022-02-09 23:21:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 23:21:54,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 23:21:54,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-09 23:21:54,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:21:54,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:54,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1038469230, now seen corresponding path program 2 times [2022-02-09 23:21:54,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:54,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235671571] [2022-02-09 23:21:54,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:54,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-02-09 23:21:54,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:54,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235671571] [2022-02-09 23:21:54,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235671571] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:54,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6207671] [2022-02-09 23:21:54,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:21:54,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:54,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:54,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:21:54,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 23:21:55,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:21:55,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:21:55,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-09 23:21:55,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-09 23:21:55,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-09 23:21:55,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6207671] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:55,199 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:55,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2022-02-09 23:21:55,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442732717] [2022-02-09 23:21:55,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:55,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 23:21:55,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:55,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 23:21:55,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-02-09 23:21:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:55,201 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:55,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:21:55,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 23:21:55,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:55,617 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 156 states. [2022-02-09 23:21:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 23:21:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:21:55,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 23:21:55,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:55,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:21:55,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash -14878556, now seen corresponding path program 3 times [2022-02-09 23:21:55,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:55,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853126650] [2022-02-09 23:21:55,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:55,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 9 proven. 117 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-09 23:21:55,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:55,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853126650] [2022-02-09 23:21:55,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853126650] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:55,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191365380] [2022-02-09 23:21:55,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:21:55,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:55,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:55,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:21:55,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 23:21:55,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-02-09 23:21:55,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:21:55,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-09 23:21:55,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-02-09 23:21:56,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 94 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-02-09 23:21:56,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191365380] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:56,223 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:56,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 17 [2022-02-09 23:21:56,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369610519] [2022-02-09 23:21:56,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:56,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-09 23:21:56,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:56,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-09 23:21:56,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-02-09 23:21:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:56,224 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:56,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:21:56,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 23:21:56,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:21:56,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:56,753 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 170 transitions and produced 150 states. [2022-02-09 23:21:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 23:21:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:21:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-09 23:21:56,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 23:21:56,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:56,954 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:21:56,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1231380488, now seen corresponding path program 4 times [2022-02-09 23:21:56,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:56,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398818620] [2022-02-09 23:21:56,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:56,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:21:57,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:57,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398818620] [2022-02-09 23:21:57,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398818620] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:57,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395648632] [2022-02-09 23:21:57,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:21:57,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:57,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:21:57,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 23:21:57,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:21:57,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:21:57,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-09 23:21:57,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:21:58,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:21:58,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395648632] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:58,405 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:58,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 38 [2022-02-09 23:21:58,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032599947] [2022-02-09 23:21:58,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:58,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-09 23:21:58,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-09 23:21:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1379, Unknown=0, NotChecked=0, Total=1482 [2022-02-09 23:21:58,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:58,406 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:58,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.7435897435897436) internal successors, (107), 38 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:21:58,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 23:21:58,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:21:58,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-09 23:21:58,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:58,699 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 236 transitions and produced 189 states. [2022-02-09 23:21:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 23:21:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:21:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 23:21:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:21:58,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-09 23:21:58,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:58,901 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:21:58,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:58,901 INFO L85 PathProgramCache]: Analyzing trace with hash -382780584, now seen corresponding path program 5 times [2022-02-09 23:21:58,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:58,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557452621] [2022-02-09 23:21:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:58,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 82 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:21:59,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:59,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557452621] [2022-02-09 23:21:59,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557452621] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:59,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357575121] [2022-02-09 23:21:59,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:21:59,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:59,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:59,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:21:59,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 23:21:59,241 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2022-02-09 23:21:59,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:21:59,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-09 23:21:59,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 118 proven. 90 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-09 23:21:59,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 118 proven. 90 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-09 23:21:59,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357575121] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:59,836 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:59,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 14, 14] total 52 [2022-02-09 23:21:59,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573152409] [2022-02-09 23:21:59,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:59,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-09 23:21:59,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:59,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-09 23:21:59,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=2402, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 23:21:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:59,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:59,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.981132075471698) internal successors, (158), 52 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:21:59,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-09 23:21:59,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:21:59,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-09 23:21:59,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:21:59,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:00,713 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 418 transitions and produced 316 states. [2022-02-09 23:22:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:00,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-09 23:22:00,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:00,914 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1906798524, now seen corresponding path program 6 times [2022-02-09 23:22:00,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:00,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222145650] [2022-02-09 23:22:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:00,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 421 proven. 235 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-02-09 23:22:01,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:01,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222145650] [2022-02-09 23:22:01,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222145650] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:01,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390668386] [2022-02-09 23:22:01,105 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 23:22:01,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:01,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:01,106 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:22:01,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 23:22:01,159 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2022-02-09 23:22:01,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:01,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-09 23:22:01,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 169 proven. 496 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-02-09 23:22:01,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 169 proven. 496 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-02-09 23:22:01,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390668386] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:01,730 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:01,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 26, 26] total 52 [2022-02-09 23:22:01,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294916328] [2022-02-09 23:22:01,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:01,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-09 23:22:01,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:01,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-09 23:22:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=2318, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 23:22:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:01,733 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:01,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.509433962264151) internal successors, (186), 52 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:01,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:01,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:01,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:01,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:01,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:01,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:02,977 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 373 transitions and produced 281 states. [2022-02-09 23:22:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:02,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:03,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-09 23:22:03,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:03,179 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:03,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash -654871370, now seen corresponding path program 7 times [2022-02-09 23:22:03,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:03,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170017887] [2022-02-09 23:22:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:03,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 256 proven. 202 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-02-09 23:22:03,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:03,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170017887] [2022-02-09 23:22:03,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170017887] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:03,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892430661] [2022-02-09 23:22:03,395 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 23:22:03,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:03,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:03,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:22:03,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 23:22:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:03,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-09 23:22:03,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 256 proven. 202 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-02-09 23:22:03,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 256 proven. 202 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-02-09 23:22:03,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892430661] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:03,828 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:03,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 23 [2022-02-09 23:22:03,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549617378] [2022-02-09 23:22:03,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:03,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-09 23:22:03,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-09 23:22:03,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2022-02-09 23:22:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:03,829 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:03,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 23 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:03,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:03,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:03,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:03,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:03,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:03,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:03,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:04,087 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 430 transitions and produced 322 states. [2022-02-09 23:22:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:04,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:04,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-09 23:22:04,308 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:04,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1613984346, now seen corresponding path program 8 times [2022-02-09 23:22:04,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:04,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081217777] [2022-02-09 23:22:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:04,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 389 proven. 537 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:22:05,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:05,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081217777] [2022-02-09 23:22:05,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081217777] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:05,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946351739] [2022-02-09 23:22:05,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:22:05,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:05,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:05,132 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:22:05,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 23:22:05,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:22:05,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:05,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-09 23:22:05,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 330 proven. 298 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-02-09 23:22:05,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 330 proven. 298 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-02-09 23:22:05,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946351739] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:05,988 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:05,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 23, 23] total 76 [2022-02-09 23:22:05,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165427618] [2022-02-09 23:22:05,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:05,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-09 23:22:05,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-09 23:22:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=728, Invalid=5124, Unknown=0, NotChecked=0, Total=5852 [2022-02-09 23:22:05,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:05,991 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:05,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.4545454545454546) internal successors, (189), 76 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:05,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:05,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:07,483 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 557 transitions and produced 419 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-09 23:22:07,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:07,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:07,693 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash -529378438, now seen corresponding path program 9 times [2022-02-09 23:22:07,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:07,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311093149] [2022-02-09 23:22:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:07,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 385 proven. 946 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-09 23:22:08,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:08,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311093149] [2022-02-09 23:22:08,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311093149] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:08,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919235609] [2022-02-09 23:22:08,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:22:08,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:08,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:08,110 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:22:08,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-09 23:22:08,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2022-02-09 23:22:08,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:08,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-09 23:22:08,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 796 proven. 429 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-02-09 23:22:08,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 796 proven. 429 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-02-09 23:22:09,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919235609] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:09,165 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:09,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 37] total 64 [2022-02-09 23:22:09,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474834750] [2022-02-09 23:22:09,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:09,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-02-09 23:22:09,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:09,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-02-09 23:22:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=730, Invalid=3430, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 23:22:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:09,167 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:09,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 3.246153846153846) internal successors, (211), 64 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:09,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:09,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:09,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-09 23:22:09,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:09,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:09,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:09,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:09,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-02-09 23:22:09,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:14,142 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 598 transitions and produced 475 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-09 23:22:14,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-09 23:22:14,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-09 23:22:14,356 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:14,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1340390292, now seen corresponding path program 10 times [2022-02-09 23:22:14,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:14,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021609805] [2022-02-09 23:22:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:14,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1505 backedges. 894 proven. 611 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:22:15,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:15,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021609805] [2022-02-09 23:22:15,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021609805] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:15,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441750802] [2022-02-09 23:22:15,768 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:22:15,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:15,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:15,769 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:22:15,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-09 23:22:15,835 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:22:15,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:15,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-09 23:22:15,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1505 backedges. 615 proven. 400 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-02-09 23:22:17,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1505 backedges. 615 proven. 400 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-02-09 23:22:17,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441750802] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:17,780 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:17,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 43, 43] total 111 [2022-02-09 23:22:17,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346400338] [2022-02-09 23:22:17,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:17,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-09 23:22:17,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:17,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-09 23:22:17,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1382, Invalid=11050, Unknown=0, NotChecked=0, Total=12432 [2022-02-09 23:22:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:17,786 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:17,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 2.1875) internal successors, (245), 111 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:17,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:17,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:17,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:17,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:17,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:17,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:17,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:17,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:17,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-02-09 23:22:17,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:20,112 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 763 transitions and produced 559 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:20,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:20,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-09 23:22:20,357 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:20,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:20,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1888630482, now seen corresponding path program 11 times [2022-02-09 23:22:20,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:20,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099281909] [2022-02-09 23:22:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:20,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 1090 proven. 1716 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-09 23:22:22,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:22,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099281909] [2022-02-09 23:22:22,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099281909] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:22,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640517613] [2022-02-09 23:22:22,108 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:22:22,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:22,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:22,109 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 23:22:22,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-09 23:22:22,205 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) [2022-02-09 23:22:22,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:22,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 64 conjunts are in the unsatisfiable core [2022-02-09 23:22:22,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 937 proven. 1247 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-02-09 23:22:23,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 937 proven. 1247 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-02-09 23:22:24,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640517613] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:24,748 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:24,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 34, 34] total 140 [2022-02-09 23:22:24,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076747413] [2022-02-09 23:22:24,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:24,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2022-02-09 23:22:24,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:24,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2022-02-09 23:22:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2334, Invalid=17406, Unknown=0, NotChecked=0, Total=19740 [2022-02-09 23:22:24,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:24,753 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:24,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 141 states have (on average 2.7588652482269502) internal successors, (389), 140 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:24,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:28,514 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 934 transitions and produced 656 states. [2022-02-09 23:22:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:28,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:28,729 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,SelfDestructingSolverStorable10 [2022-02-09 23:22:28,729 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash 552024664, now seen corresponding path program 12 times [2022-02-09 23:22:28,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:28,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393015699] [2022-02-09 23:22:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:28,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 2148 proven. 1289 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-02-09 23:22:29,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:29,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393015699] [2022-02-09 23:22:29,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393015699] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:29,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000391203] [2022-02-09 23:22:29,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 23:22:29,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:29,388 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) [2022-02-09 23:22:29,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-09 23:22:29,500 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 70 check-sat command(s) [2022-02-09 23:22:29,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:29,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 67 conjunts are in the unsatisfiable core [2022-02-09 23:22:29,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 1156 proven. 2364 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-02-09 23:22:31,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:32,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 1156 proven. 2364 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-02-09 23:22:32,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000391203] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:32,725 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:32,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 66, 66] total 126 [2022-02-09 23:22:32,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139566785] [2022-02-09 23:22:32,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:32,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-02-09 23:22:32,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:32,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-02-09 23:22:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2380, Invalid=13622, Unknown=0, NotChecked=0, Total=16002 [2022-02-09 23:22:32,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:32,730 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:32,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 127 states have (on average 2.9291338582677167) internal successors, (372), 126 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:32,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:32,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:32,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:32,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:32,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:36,744 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1015 transitions and produced 725 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:22:36,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:36,958 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,SelfDestructingSolverStorable11 [2022-02-09 23:22:36,958 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:36,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:36,959 INFO L85 PathProgramCache]: Analyzing trace with hash -521113126, now seen corresponding path program 13 times [2022-02-09 23:22:36,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:36,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212200255] [2022-02-09 23:22:36,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:36,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5134 backedges. 3008 proven. 2112 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-09 23:22:39,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:39,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212200255] [2022-02-09 23:22:39,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212200255] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:39,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087600053] [2022-02-09 23:22:39,568 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 23:22:39,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:39,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:39,569 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) [2022-02-09 23:22:39,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-09 23:22:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:39,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 84 conjunts are in the unsatisfiable core [2022-02-09 23:22:39,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:41,050 INFO L134 CoverageAnalysis]: Checked inductivity of 5134 backedges. 2312 proven. 1342 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2022-02-09 23:22:41,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5134 backedges. 2312 proven. 1342 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2022-02-09 23:22:41,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087600053] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:41,452 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:41,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 50, 50] total 166 [2022-02-09 23:22:41,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974468399] [2022-02-09 23:22:41,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:41,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-02-09 23:22:41,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:41,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-02-09 23:22:41,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3391, Invalid=24331, Unknown=0, NotChecked=0, Total=27722 [2022-02-09 23:22:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:41,457 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:41,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 2.6526946107784433) internal successors, (443), 166 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:22:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:49,416 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1164 transitions and produced 830 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:22:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:22:49,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:49,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:49,618 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:49,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1039595982, now seen corresponding path program 14 times [2022-02-09 23:22:49,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:49,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364412885] [2022-02-09 23:22:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:49,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7094 backedges. 1710 proven. 4144 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2022-02-09 23:22:51,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:51,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364412885] [2022-02-09 23:22:51,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364412885] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:51,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423214194] [2022-02-09 23:22:51,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:22:51,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:51,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:51,458 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) [2022-02-09 23:22:51,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-09 23:22:51,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:22:51,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:51,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 88 conjunts are in the unsatisfiable core [2022-02-09 23:22:51,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 7094 backedges. 2520 proven. 2739 refuted. 0 times theorem prover too weak. 1835 trivial. 0 not checked. [2022-02-09 23:22:53,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 7094 backedges. 2520 proven. 2739 refuted. 0 times theorem prover too weak. 1835 trivial. 0 not checked. [2022-02-09 23:22:54,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423214194] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:54,262 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:54,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 50, 50] total 131 [2022-02-09 23:22:54,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445844894] [2022-02-09 23:22:54,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:54,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-02-09 23:22:54,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:54,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-02-09 23:22:54,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2593, Invalid=14699, Unknown=0, NotChecked=0, Total=17292 [2022-02-09 23:22:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:54,264 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:54,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 2.712121212121212) internal successors, (358), 131 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:22:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:54,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:22:54,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:59,606 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1203 transitions and produced 851 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:22:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:22:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:22:59,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-09 23:22:59,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:59,824 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:22:59,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:59,824 INFO L85 PathProgramCache]: Analyzing trace with hash -318478918, now seen corresponding path program 15 times [2022-02-09 23:22:59,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:59,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170674672] [2022-02-09 23:22:59,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:59,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:23:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7446 backedges. 1960 proven. 4246 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2022-02-09 23:23:01,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:23:01,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170674672] [2022-02-09 23:23:01,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170674672] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:23:01,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863705594] [2022-02-09 23:23:01,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:23:01,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:23:01,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:23:01,688 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) [2022-02-09 23:23:01,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-09 23:23:01,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 65 check-sat command(s) [2022-02-09 23:23:01,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:23:01,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 105 conjunts are in the unsatisfiable core [2022-02-09 23:23:01,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:23:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7446 backedges. 3884 proven. 1946 refuted. 0 times theorem prover too weak. 1616 trivial. 0 not checked. [2022-02-09 23:23:05,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:23:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7446 backedges. 3884 proven. 1946 refuted. 0 times theorem prover too weak. 1616 trivial. 0 not checked. [2022-02-09 23:23:05,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863705594] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:23:05,821 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:23:05,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 94, 94] total 168 [2022-02-09 23:23:05,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580573173] [2022-02-09 23:23:05,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:23:05,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2022-02-09 23:23:05,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:23:05,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2022-02-09 23:23:05,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4974, Invalid=23418, Unknown=0, NotChecked=0, Total=28392 [2022-02-09 23:23:05,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:23:05,825 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:23:05,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.502958579881657) internal successors, (423), 168 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:23:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:23:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:23:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:23:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:23:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:23:05,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:23:25,958 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1422 transitions and produced 1090 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:23:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:23:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2022-02-09 23:23:25,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-09 23:23:26,175 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,SelfDestructingSolverStorable14 [2022-02-09 23:23:26,175 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:23:26,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:23:26,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1858190308, now seen corresponding path program 16 times [2022-02-09 23:23:26,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:23:26,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198874670] [2022-02-09 23:23:26,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:23:26,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:23:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:23:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9981 backedges. 7066 proven. 2915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:23:31,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:23:31,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198874670] [2022-02-09 23:23:31,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198874670] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:23:31,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491678210] [2022-02-09 23:23:31,810 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:23:31,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:23:31,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:23:31,811 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) [2022-02-09 23:23:31,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-09 23:23:31,937 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:23:31,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:23:31,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 105 conjunts are in the unsatisfiable core [2022-02-09 23:23:31,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:23:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9981 backedges. 3208 proven. 2417 refuted. 0 times theorem prover too weak. 4356 trivial. 0 not checked. [2022-02-09 23:23:38,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:23:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 9981 backedges. 3208 proven. 2417 refuted. 0 times theorem prover too weak. 4356 trivial. 0 not checked. [2022-02-09 23:23:39,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491678210] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:23:39,573 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:23:39,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [173, 104, 104] total 286 [2022-02-09 23:23:39,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087350089] [2022-02-09 23:23:39,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:23:39,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 287 states [2022-02-09 23:23:39,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:23:39,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 287 interpolants. [2022-02-09 23:23:39,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8568, Invalid=73514, Unknown=0, NotChecked=0, Total=82082 [2022-02-09 23:23:39,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:23:39,580 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:23:39,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 287 states, 287 states have (on average 2.1289198606271778) internal successors, (611), 286 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2022-02-09 23:23:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:01,316 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1572 transitions and produced 1197 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 345 states. [2022-02-09 23:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 346 states. [2022-02-09 23:24:01,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-02-09 23:24:01,534 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,SelfDestructingSolverStorable15 [2022-02-09 23:24:01,534 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:24:01,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:24:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1040140122, now seen corresponding path program 17 times [2022-02-09 23:24:01,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:24:01,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557332701] [2022-02-09 23:24:01,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:24:01,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:24:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:24:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 11902 backedges. 8337 proven. 3565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:24:08,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:24:08,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557332701] [2022-02-09 23:24:08,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557332701] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:24:08,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461605088] [2022-02-09 23:24:08,203 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:24:08,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:24:08,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:24:08,204 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) [2022-02-09 23:24:08,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-09 23:24:08,374 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2022-02-09 23:24:08,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:24:08,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 126 conjunts are in the unsatisfiable core [2022-02-09 23:24:08,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:24:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 11902 backedges. 5499 proven. 2916 refuted. 0 times theorem prover too weak. 3487 trivial. 0 not checked. [2022-02-09 23:24:12,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:24:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 11902 backedges. 5499 proven. 2916 refuted. 0 times theorem prover too weak. 3487 trivial. 0 not checked. [2022-02-09 23:24:14,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461605088] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:24:14,330 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:24:14,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 125, 125] total 287 [2022-02-09 23:24:14,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360518511] [2022-02-09 23:24:14,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:24:14,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 288 states [2022-02-09 23:24:14,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:24:14,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 288 interpolants. [2022-02-09 23:24:14,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11055, Invalid=71601, Unknown=0, NotChecked=0, Total=82656 [2022-02-09 23:24:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:14,337 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:24:14,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 288 states, 288 states have (on average 2.142361111111111) internal successors, (617), 287 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:24:14,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 345 states. [2022-02-09 23:24:14,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 346 states. [2022-02-09 23:24:14,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:28,120 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2013 transitions and produced 1381 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:24:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:24:28,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-09 23:24:28,339 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,SelfDestructingSolverStorable16 [2022-02-09 23:24:28,340 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:24:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:24:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1962890550, now seen corresponding path program 18 times [2022-02-09 23:24:28,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:24:28,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125601462] [2022-02-09 23:24:28,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:24:28,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:24:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:24:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 10111 proven. 10191 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-09 23:24:38,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:24:38,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125601462] [2022-02-09 23:24:38,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125601462] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:24:38,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804466877] [2022-02-09 23:24:38,686 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 23:24:38,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:24:38,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:24:38,687 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) [2022-02-09 23:24:38,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-09 23:24:38,993 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 128 check-sat command(s) [2022-02-09 23:24:38,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:24:39,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 180 conjunts are in the unsatisfiable core [2022-02-09 23:24:39,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:24:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 11152 proven. 5661 refuted. 0 times theorem prover too weak. 3497 trivial. 0 not checked. [2022-02-09 23:24:54,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:24:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 11152 proven. 5661 refuted. 0 times theorem prover too weak. 3497 trivial. 0 not checked. [2022-02-09 23:24:59,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804466877] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:24:59,973 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:24:59,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [234, 169, 169] total 458 [2022-02-09 23:24:59,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497210932] [2022-02-09 23:24:59,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:24:59,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 459 states [2022-02-09 23:24:59,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:24:59,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 459 interpolants. [2022-02-09 23:24:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24039, Invalid=186183, Unknown=0, NotChecked=0, Total=210222 [2022-02-09 23:24:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:59,985 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:24:59,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 459 states, 459 states have (on average 2.161220043572985) internal successors, (992), 458 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:24:59,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:24:59,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:26:10,166 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2362 transitions and produced 1777 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 669 states. [2022-02-09 23:26:10,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-02-09 23:26:10,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-09 23:26:10,384 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:26:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:26:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash 287817900, now seen corresponding path program 19 times [2022-02-09 23:26:10,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:26:10,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765077388] [2022-02-09 23:26:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:26:10,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:26:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:26:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 29969 backedges. 24351 proven. 5618 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:26:26,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:26:26,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765077388] [2022-02-09 23:26:26,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765077388] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:26:26,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256179757] [2022-02-09 23:26:26,450 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 23:26:26,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:26:26,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:26:26,453 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) [2022-02-09 23:26:26,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-02-09 23:26:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:26:26,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1501 conjuncts, 168 conjunts are in the unsatisfiable core [2022-02-09 23:26:26,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:26:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 29969 backedges. 10150 proven. 4690 refuted. 0 times theorem prover too weak. 15129 trivial. 0 not checked. [2022-02-09 23:26:45,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:26:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 29969 backedges. 10150 proven. 4690 refuted. 0 times theorem prover too weak. 15129 trivial. 0 not checked. [2022-02-09 23:26:52,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256179757] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:26:52,076 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:26:52,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [293, 167, 167] total 519 [2022-02-09 23:26:52,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969837481] [2022-02-09 23:26:52,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:26:52,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 520 states [2022-02-09 23:26:52,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:26:52,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 520 interpolants. [2022-02-09 23:26:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28593, Invalid=241287, Unknown=0, NotChecked=0, Total=269880 [2022-02-09 23:26:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:26:52,096 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:26:52,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 520 states, 520 states have (on average 2.0711538461538463) internal successors, (1077), 519 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:26:52,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 669 states. [2022-02-09 23:26:52,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:28:16,295 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2962 transitions and produced 2209 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:28:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 669 states. [2022-02-09 23:28:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 710 states. [2022-02-09 23:28:16,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-02-09 23:28:16,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:28:16,512 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:28:16,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:28:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash -549856826, now seen corresponding path program 20 times [2022-02-09 23:28:16,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:28:16,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007096638] [2022-02-09 23:28:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:28:16,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:28:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:28:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 43436 backedges. 32565 proven. 10871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 23:28:40,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:28:40,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007096638] [2022-02-09 23:28:40,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007096638] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:28:40,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103580970] [2022-02-09 23:28:40,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:28:40,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:28:40,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:28:40,472 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) [2022-02-09 23:28:40,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-02-09 23:28:40,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:28:40,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:28:40,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 200 conjunts are in the unsatisfiable core [2022-02-09 23:28:40,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:29:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 43436 backedges. 16696 proven. 9604 refuted. 0 times theorem prover too weak. 17136 trivial. 0 not checked. [2022-02-09 23:29:09,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:29:10,421 INFO L134 CoverageAnalysis]: Checked inductivity of 43436 backedges. 16696 proven. 9604 refuted. 0 times theorem prover too weak. 17136 trivial. 0 not checked. [2022-02-09 23:29:10,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103580970] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:29:10,422 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:29:10,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [360, 199, 199] total 558 [2022-02-09 23:29:10,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285962426] [2022-02-09 23:29:10,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:29:10,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 559 states [2022-02-09 23:29:10,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:29:10,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 559 interpolants. [2022-02-09 23:29:10,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32450, Invalid=279472, Unknown=0, NotChecked=0, Total=311922 [2022-02-09 23:29:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:29:10,441 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:29:10,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 559 states, 559 states have (on average 2.0304114490161003) internal successors, (1135), 558 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:29:10,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:29:10,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:29:10,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:29:10,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 669 states. [2022-02-09 23:29:10,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 710 states. [2022-02-09 23:29:10,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:29:49,484 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3249 transitions and produced 2157 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:29:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:29:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:29:49,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-02-09 23:29:49,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:29:49,703 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:29:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:29:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash -740807834, now seen corresponding path program 21 times [2022-02-09 23:29:49,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:29:49,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205912376] [2022-02-09 23:29:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:29:49,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:29:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:29:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 52806 backedges. 20112 proven. 16782 refuted. 0 times theorem prover too weak. 15912 trivial. 0 not checked. [2022-02-09 23:29:55,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:29:55,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205912376] [2022-02-09 23:29:55,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205912376] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:29:55,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107628581] [2022-02-09 23:29:55,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:29:55,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:29:55,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:29:55,102 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) [2022-02-09 23:29:55,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-02-09 23:29:55,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 134 check-sat command(s) [2022-02-09 23:29:55,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:29:55,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 267 conjunts are in the unsatisfiable core [2022-02-09 23:29:55,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:30:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 52806 backedges. 19000 proven. 17406 refuted. 0 times theorem prover too weak. 16400 trivial. 0 not checked. [2022-02-09 23:30:21,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:30:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 52806 backedges. 19000 proven. 17406 refuted. 0 times theorem prover too weak. 16400 trivial. 0 not checked. [2022-02-09 23:30:22,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107628581] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:30:22,791 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:30:22,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [160, 256, 256] total 417 [2022-02-09 23:30:22,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844128077] [2022-02-09 23:30:22,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:30:22,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 418 states [2022-02-09 23:30:22,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:30:22,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 418 interpolants. [2022-02-09 23:30:22,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25979, Invalid=148327, Unknown=0, NotChecked=0, Total=174306 [2022-02-09 23:30:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:30:22,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:30:22,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 418 states, 418 states have (on average 2.624401913875598) internal successors, (1097), 417 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:30:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:31:12,140 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3310 transitions and produced 2434 states. [2022-02-09 23:31:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:31:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:31:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:31:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:31:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:31:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:31:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:31:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:31:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 517 states. [2022-02-09 23:31:12,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-02-09 23:31:12,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:31:12,380 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:31:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:31:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -859733788, now seen corresponding path program 22 times [2022-02-09 23:31:12,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:31:12,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930339559] [2022-02-09 23:31:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:31:12,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:31:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:31:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 50981 backedges. 18195 proven. 16651 refuted. 0 times theorem prover too weak. 16135 trivial. 0 not checked. [2022-02-09 23:31:26,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:31:26,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930339559] [2022-02-09 23:31:26,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930339559] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:31:26,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266205955] [2022-02-09 23:31:26,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:31:26,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:31:26,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:31:26,092 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) [2022-02-09 23:31:26,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-02-09 23:31:26,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:31:26,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:31:26,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 260 conjunts are in the unsatisfiable core [2022-02-09 23:31:26,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:31:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 50981 backedges. 17926 proven. 16384 refuted. 0 times theorem prover too weak. 16671 trivial. 0 not checked. [2022-02-09 23:31:53,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:31:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 50981 backedges. 17926 proven. 16384 refuted. 0 times theorem prover too weak. 16671 trivial. 0 not checked. [2022-02-09 23:31:54,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266205955] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:31:54,663 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:31:54,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [260, 259, 259] total 518 [2022-02-09 23:31:54,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89861610] [2022-02-09 23:31:54,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:31:54,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 519 states [2022-02-09 23:31:54,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:31:54,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 519 interpolants. [2022-02-09 23:31:54,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34060, Invalid=234782, Unknown=0, NotChecked=0, Total=268842 [2022-02-09 23:31:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:31:54,678 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:31:54,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 519 states, 519 states have (on average 2.0481695568400773) internal successors, (1063), 518 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:31:54,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:31:54,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:31:54,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:31:54,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 517 states. [2022-02-09 23:31:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:33:37,911 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4119 transitions and produced 2756 states. [2022-02-09 23:33:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:33:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:33:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-02-09 23:33:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 524 states. [2022-02-09 23:33:37,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-02-09 23:33:38,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:33:38,128 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:33:38,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:33:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash -836059634, now seen corresponding path program 23 times [2022-02-09 23:33:38,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:33:38,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376760400] [2022-02-09 23:33:38,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:33:38,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:33:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:33:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 92556 backedges. 28494 proven. 47367 refuted. 0 times theorem prover too weak. 16695 trivial. 0 not checked. [2022-02-09 23:33:49,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:33:49,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376760400] [2022-02-09 23:33:49,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376760400] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:33:49,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639295774] [2022-02-09 23:33:49,011 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:33:49,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:33:49,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:33:49,028 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) [2022-02-09 23:33:49,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-02-09 23:33:50,169 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 347 check-sat command(s) [2022-02-09 23:33:50,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:33:50,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 2576 conjuncts, 375 conjunts are in the unsatisfiable core [2022-02-09 23:33:50,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:33:51,773 INFO L134 CoverageAnalysis]: Checked inductivity of 92556 backedges. 28763 proven. 47098 refuted. 0 times theorem prover too weak. 16695 trivial. 0 not checked. [2022-02-09 23:33:51,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:34:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 92556 backedges. 28763 proven. 47098 refuted. 0 times theorem prover too weak. 16695 trivial. 0 not checked. [2022-02-09 23:34:05,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639295774] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:34:05,913 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:34:05,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [234, 234, 234] total 441 [2022-02-09 23:34:05,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628871085] [2022-02-09 23:34:05,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:34:05,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 442 states [2022-02-09 23:34:05,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:34:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 442 interpolants. [2022-02-09 23:34:05,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49128, Invalid=145794, Unknown=0, NotChecked=0, Total=194922 [2022-02-09 23:34:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:34:05,930 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:34:05,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 442 states, 442 states have (on average 3.1176470588235294) internal successors, (1378), 441 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 23:34:05,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:34:05,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:34:05,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:34:05,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:34:05,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 718 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 524 states. [2022-02-09 23:34:05,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:34:36,984 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5064 transitions and produced 3281 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-09 23:34:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 393 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 673 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 808 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 403 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-02-09 23:34:36,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 524 states. [2022-02-09 23:34:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 599 states. [2022-02-09 23:34:37,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-02-09 23:34:37,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:34:37,210 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 23:34:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:34:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash 770541952, now seen corresponding path program 24 times [2022-02-09 23:34:37,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:34:37,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399965482] [2022-02-09 23:34:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:34:37,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2022-02-09 23:34:38,132 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 23:34:38,133 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 23:34:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:34:38,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-09 23:34:38,538 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:244) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:226) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-09 23:34:38,541 INFO L158 Benchmark]: Toolchain (without parser) took 765844.79ms. Allocated memory was 226.5MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 191.2MB in the beginning and 1.2GB in the end (delta: -995.1MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-02-09 23:34:38,541 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 226.5MB. Free memory was 192.3MB in the beginning and 192.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 23:34:38,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.29ms. Allocated memory is still 226.5MB. Free memory was 191.0MB in the beginning and 189.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 23:34:38,542 INFO L158 Benchmark]: Boogie Preprocessor took 17.32ms. Allocated memory is still 226.5MB. Free memory was 189.4MB in the beginning and 188.6MB in the end (delta: 850.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 23:34:38,542 INFO L158 Benchmark]: RCFGBuilder took 217.33ms. Allocated memory is still 226.5MB. Free memory was 188.5MB in the beginning and 179.3MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 23:34:38,542 INFO L158 Benchmark]: TraceAbstraction took 765578.17ms. Allocated memory was 226.5MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 178.7MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-02-09 23:34:38,543 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 0.12ms. Allocated memory is still 226.5MB. Free memory was 192.3MB in the beginning and 192.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.29ms. Allocated memory is still 226.5MB. Free memory was 191.0MB in the beginning and 189.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.32ms. Allocated memory is still 226.5MB. Free memory was 189.4MB in the beginning and 188.6MB in the end (delta: 850.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 217.33ms. Allocated memory is still 226.5MB. Free memory was 188.5MB in the beginning and 179.3MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 765578.17ms. Allocated memory was 226.5MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 178.7MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:244) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown [2022-02-09 23:34:38,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-09 23:34:38,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 !SESSION 2022-02-09 23:21:50.424 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-flipped-dist.wvr.bpl !ENTRY org.eclipse.osgi 4 0 2022-02-09 23:34:38.983 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0164d968/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0164d968/.metadata/.log.