/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/clever.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 23:18:26,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 23:18:26,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 23:18:27,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 23:18:27,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 23:18:27,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 23:18:27,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 23:18:27,148 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 23:18:27,198 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 23:18:27,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 23:18:27,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 23:18:27,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 23:18:27,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 23:18:27,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 23:18:27,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 23:18:27,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 23:18:27,200 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 23:18:27,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 23:18:27,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 23:18:27,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 23:18:27,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 23:18:27,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 23:18:27,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 23:18:27,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 23:18:27,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 23:18:27,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 23:18:27,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 23:18:27,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 23:18:27,203 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 23:18:27,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 23:18:27,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 23:18:27,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 23:18:27,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 23:18:27,204 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 23:18:27,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 23:18:27,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 23:18:27,205 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 23:18:27,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 23:18:27,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 23:18:27,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 23:18:27,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 23:18:27,521 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 23:18:27,523 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 23:18:27,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl [2022-02-09 23:18:27,525 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl' [2022-02-09 23:18:27,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 23:18:27,552 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 23:18:27,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 23:18:27,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 23:18:27,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 23:18:27,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,610 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 23:18:27,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 23:18:27,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 23:18:27,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 23:18:27,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 23:18:27,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 23:18:27,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 23:18:27,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 23:18:27,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 23:18:27,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/1) ... [2022-02-09 23:18:27,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 23:18:27,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:27,681 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 23:18:27,701 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 23:18:27,716 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 23:18:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 23:18:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 23:18:27,717 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 23:18:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 23:18:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 23:18:27,717 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 23:18:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 23:18:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 23:18:27,718 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 23:18:27,761 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 23:18:27,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 23:18:27,828 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 23:18:27,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 23:18:27,834 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 23:18:27,836 INFO L202 PluginConnector]: Adding new model clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:18:27 BoogieIcfgContainer [2022-02-09 23:18:27,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 23:18:27,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 23:18:27,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 23:18:27,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 23:18:27,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:18:27" (1/2) ... [2022-02-09 23:18:27,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcc0d50 and model type clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 11:18:27, skipping insertion in model container [2022-02-09 23:18:27,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:18:27" (2/2) ... [2022-02-09 23:18:27,861 INFO L111 eAbstractionObserver]: Analyzing ICFG clever.wvr.bpl [2022-02-09 23:18:27,865 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 23:18:27,865 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 23:18:27,865 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 23:18:27,865 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 23:18:27,910 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 23:18:27,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 23:18:27,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:27,996 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 23:18:28,004 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 23:18:28,038 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 23:18:28,052 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 23:18:28,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 23:18:28,237 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1113 transitions and produced 794 states. [2022-02-09 23:18:28,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:18:28,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:18:28,244 INFO L85 PathProgramCache]: Analyzing trace with hash -827386761, now seen corresponding path program 1 times [2022-02-09 23:18:28,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:18:28,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768416771] [2022-02-09 23:18:28,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:28,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:18:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:18:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3412 backedges. 919 proven. 58 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2022-02-09 23:18:28,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:18:28,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768416771] [2022-02-09 23:18:28,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768416771] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:18:28,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548967522] [2022-02-09 23:18:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:28,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:18:28,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:28,871 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 23:18:28,880 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 23:18:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:18:29,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 23:18:29,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:18:29,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3412 backedges. 750 proven. 29 refuted. 0 times theorem prover too weak. 2633 trivial. 0 not checked. [2022-02-09 23:18:29,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:18:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3412 backedges. 743 proven. 36 refuted. 0 times theorem prover too weak. 2633 trivial. 0 not checked. [2022-02-09 23:18:30,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548967522] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:18:30,373 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:18:30,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 14 [2022-02-09 23:18:30,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801601504] [2022-02-09 23:18:30,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:18:30,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-09 23:18:30,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:18:30,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-09 23:18:30,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-02-09 23:18:30,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:30,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:18:30,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 14 states have internal predecessors, (70), 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 23:18:30,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:30,715 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1998 transitions and produced 1344 states. [2022-02-09 23:18:30,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:30,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 23:18:30,917 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 23:18:30,918 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:18:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:18:30,923 INFO L85 PathProgramCache]: Analyzing trace with hash 594995357, now seen corresponding path program 2 times [2022-02-09 23:18:30,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:18:30,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527361417] [2022-02-09 23:18:30,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:30,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:18:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:18:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8868 backedges. 6955 proven. 1539 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-02-09 23:18:32,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:18:32,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527361417] [2022-02-09 23:18:32,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527361417] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:18:32,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266338744] [2022-02-09 23:18:32,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:18:32,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:18:32,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:32,124 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 23:18:32,126 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 23:18:32,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:18:32,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:18:32,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-09 23:18:32,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:18:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 8868 backedges. 7696 proven. 798 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-02-09 23:18:33,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:18:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8868 backedges. 7696 proven. 798 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-02-09 23:18:34,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266338744] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:18:34,045 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:18:34,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 43 [2022-02-09 23:18:34,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758384134] [2022-02-09 23:18:34,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:18:34,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-09 23:18:34,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:18:34,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-09 23:18:34,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=712, Invalid=1180, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 23:18:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:34,050 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:18:34,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.136363636363637) internal successors, (314), 43 states have internal predecessors, (314), 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 23:18:34,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:34,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:35,925 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3627 transitions and produced 2093 states. [2022-02-09 23:18:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-09 23:18:35,945 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 23:18:36,135 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 23:18:36,136 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:18:36,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:18:36,137 INFO L85 PathProgramCache]: Analyzing trace with hash 203833053, now seen corresponding path program 3 times [2022-02-09 23:18:36,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:18:36,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910430651] [2022-02-09 23:18:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:36,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:18:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:18:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 8394 backedges. 1820 proven. 6346 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-02-09 23:18:37,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:18:37,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910430651] [2022-02-09 23:18:37,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910430651] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:18:37,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670507826] [2022-02-09 23:18:37,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:18:37,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:18:37,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:37,427 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 23:18:37,457 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 23:18:37,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2022-02-09 23:18:37,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:18:37,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 56 conjunts are in the unsatisfiable core [2022-02-09 23:18:37,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:18:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8394 backedges. 1820 proven. 6346 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-02-09 23:18:38,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:18:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8394 backedges. 1820 proven. 6346 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-02-09 23:18:40,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670507826] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:18:40,066 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:18:40,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 87 [2022-02-09 23:18:40,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335662328] [2022-02-09 23:18:40,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:18:40,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-09 23:18:40,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:18:40,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-09 23:18:40,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2028, Invalid=5628, Unknown=0, NotChecked=0, Total=7656 [2022-02-09 23:18:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:40,072 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:18:40,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 4.75) internal successors, (418), 87 states have internal predecessors, (418), 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 23:18:40,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:40,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-09 23:18:40,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:43,040 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 23983 transitions and produced 12475 states. [2022-02-09 23:18:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:18:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:18:43,065 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 23:18:43,255 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 23:18:43,256 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:18:43,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:18:43,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1437479044, now seen corresponding path program 4 times [2022-02-09 23:18:43,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:18:43,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892960979] [2022-02-09 23:18:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:43,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:18:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:18:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 53454 backedges. 24824 proven. 27920 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-02-09 23:18:46,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:18:46,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892960979] [2022-02-09 23:18:46,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892960979] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:18:46,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830443911] [2022-02-09 23:18:46,435 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:18:46,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:18:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:46,444 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 23:18:46,445 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 23:18:46,683 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:18:46,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:18:46,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-09 23:18:46,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:18:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 53454 backedges. 23760 proven. 1202 refuted. 0 times theorem prover too weak. 28492 trivial. 0 not checked. [2022-02-09 23:18:48,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:18:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 53454 backedges. 22604 proven. 2358 refuted. 0 times theorem prover too weak. 28492 trivial. 0 not checked. [2022-02-09 23:18:49,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830443911] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:18:49,706 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:18:49,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 11, 11] total 112 [2022-02-09 23:18:49,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709111485] [2022-02-09 23:18:49,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:18:49,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-09 23:18:49,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:18:49,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-09 23:18:49,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=10826, Unknown=0, NotChecked=0, Total=12432 [2022-02-09 23:18:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:49,713 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:18:49,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 4.946428571428571) internal successors, (554), 112 states have internal predecessors, (554), 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 23:18:49,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:49,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:18:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:18:49,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:50,388 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4687 transitions and produced 3162 states. [2022-02-09 23:18:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:18:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:18:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:18:50,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 23:18:50,607 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 23:18:50,607 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:18:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:18:50,608 INFO L85 PathProgramCache]: Analyzing trace with hash 498780966, now seen corresponding path program 5 times [2022-02-09 23:18:50,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:18:50,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286876814] [2022-02-09 23:18:50,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:50,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:18:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:18:54,469 INFO L134 CoverageAnalysis]: Checked inductivity of 84940 backedges. 40134 proven. 43527 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2022-02-09 23:18:54,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:18:54,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286876814] [2022-02-09 23:18:54,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286876814] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:18:54,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456328355] [2022-02-09 23:18:54,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:18:54,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:18:54,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:18:54,522 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 23:18:54,556 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 23:18:54,780 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 102 check-sat command(s) [2022-02-09 23:18:54,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:18:54,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-09 23:18:54,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:18:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 84940 backedges. 53503 proven. 1473 refuted. 0 times theorem prover too weak. 29964 trivial. 0 not checked. [2022-02-09 23:18:56,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:18:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 84940 backedges. 51511 proven. 3465 refuted. 0 times theorem prover too weak. 29964 trivial. 0 not checked. [2022-02-09 23:18:58,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456328355] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:18:58,813 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:18:58,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 15, 15] total 124 [2022-02-09 23:18:58,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480936988] [2022-02-09 23:18:58,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:18:58,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-02-09 23:18:58,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:18:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-02-09 23:18:58,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1742, Invalid=13510, Unknown=0, NotChecked=0, Total=15252 [2022-02-09 23:18:58,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:58,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:18:58,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 4.854838709677419) internal successors, (602), 124 states have internal predecessors, (602), 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 23:18:58,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:58,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:18:58,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:18:58,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:18:58,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:18:59,733 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5933 transitions and produced 4170 states. [2022-02-09 23:18:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:18:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:18:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:18:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:18:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:18:59,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 23:18:59,947 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 23:18:59,947 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:18:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:18:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash 211369476, now seen corresponding path program 6 times [2022-02-09 23:18:59,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:18:59,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592351407] [2022-02-09 23:18:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:18:59,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:19:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:19:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 228070 backedges. 109950 proven. 114126 refuted. 0 times theorem prover too weak. 3994 trivial. 0 not checked. [2022-02-09 23:19:04,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:19:04,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592351407] [2022-02-09 23:19:04,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592351407] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:19:04,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903454375] [2022-02-09 23:19:04,082 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 23:19:04,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:19:04,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:19:04,083 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 23:19:04,088 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 23:19:04,829 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 223 check-sat command(s) [2022-02-09 23:19:04,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:19:04,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2095 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-09 23:19:04,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:19:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 228070 backedges. 145093 proven. 4164 refuted. 0 times theorem prover too weak. 78813 trivial. 0 not checked. [2022-02-09 23:19:07,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:19:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 228070 backedges. 140149 proven. 9108 refuted. 0 times theorem prover too weak. 78813 trivial. 0 not checked. [2022-02-09 23:19:10,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903454375] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:19:10,733 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:19:10,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 21, 21] total 139 [2022-02-09 23:19:10,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673449326] [2022-02-09 23:19:10,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:19:10,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2022-02-09 23:19:10,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:19:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2022-02-09 23:19:10,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1955, Invalid=17227, Unknown=0, NotChecked=0, Total=19182 [2022-02-09 23:19:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:10,742 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:19:10,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 139 states have (on average 4.654676258992806) internal successors, (647), 139 states have internal predecessors, (647), 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 23:19:10,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:10,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:10,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:10,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:10,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:10,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:11,985 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7349 transitions and produced 5262 states. [2022-02-09 23:19:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:11,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:19:12,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 23:19:12,203 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 23:19:12,204 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:19:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:19:12,204 INFO L85 PathProgramCache]: Analyzing trace with hash -762645530, now seen corresponding path program 7 times [2022-02-09 23:19:12,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:19:12,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696089003] [2022-02-09 23:19:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:19:12,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:19:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:19:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 444208 backedges. 215595 proven. 220392 refuted. 0 times theorem prover too weak. 8221 trivial. 0 not checked. [2022-02-09 23:19:18,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:19:18,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696089003] [2022-02-09 23:19:18,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696089003] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:19:18,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926491781] [2022-02-09 23:19:18,215 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 23:19:18,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:19:18,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:19:18,216 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 23:19:18,218 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 23:19:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:19:18,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 3146 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-09 23:19:18,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:19:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 444208 backedges. 201231 proven. 11380 refuted. 0 times theorem prover too weak. 231597 trivial. 0 not checked. [2022-02-09 23:19:22,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:19:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 444208 backedges. 190317 proven. 22294 refuted. 0 times theorem prover too weak. 231597 trivial. 0 not checked. [2022-02-09 23:19:26,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926491781] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:19:26,110 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:19:26,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 25, 25] total 147 [2022-02-09 23:19:26,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143734800] [2022-02-09 23:19:26,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:19:26,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2022-02-09 23:19:26,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:19:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2022-02-09 23:19:26,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2061, Invalid=19401, Unknown=0, NotChecked=0, Total=21462 [2022-02-09 23:19:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:26,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:19:26,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 4.482993197278912) internal successors, (659), 147 states have internal predecessors, (659), 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 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:19:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:27,692 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7821 transitions and produced 5626 states. [2022-02-09 23:19:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:19:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:19:27,713 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 23:19:27,898 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 23:19:27,899 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:19:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:19:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash -807335036, now seen corresponding path program 8 times [2022-02-09 23:19:27,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:19:27,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470233379] [2022-02-09 23:19:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:19:27,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:19:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:19:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 532478 backedges. 258772 proven. 263740 refuted. 0 times theorem prover too weak. 9966 trivial. 0 not checked. [2022-02-09 23:19:34,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:19:34,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470233379] [2022-02-09 23:19:34,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470233379] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:19:34,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641866898] [2022-02-09 23:19:34,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:19:34,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:19:34,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:19:34,145 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 23:19:34,145 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 23:19:34,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:19:34,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:19:34,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 3406 conjuncts, 26 conjunts are in the unsatisfiable core [2022-02-09 23:19:34,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:19:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 532478 backedges. 241236 proven. 13686 refuted. 0 times theorem prover too weak. 277556 trivial. 0 not checked. [2022-02-09 23:19:39,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:19:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 532478 backedges. 228112 proven. 26810 refuted. 0 times theorem prover too weak. 277556 trivial. 0 not checked. [2022-02-09 23:19:43,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641866898] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:19:43,708 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:19:43,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 27, 27] total 152 [2022-02-09 23:19:43,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466199842] [2022-02-09 23:19:43,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:19:43,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2022-02-09 23:19:43,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:19:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2022-02-09 23:19:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2154, Invalid=20798, Unknown=0, NotChecked=0, Total=22952 [2022-02-09 23:19:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:43,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:19:43,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 4.434210526315789) internal successors, (674), 152 states have internal predecessors, (674), 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 23:19:43,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:43,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:43,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:43,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:43,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:43,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:19:43,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:19:43,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:45,160 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8293 transitions and produced 5990 states. [2022-02-09 23:19:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:19:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:19:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:19:45,181 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 23:19:45,361 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 23:19:45,361 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:19:45,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:19:45,362 INFO L85 PathProgramCache]: Analyzing trace with hash -145339354, now seen corresponding path program 9 times [2022-02-09 23:19:45,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:19:45,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526587805] [2022-02-09 23:19:45,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:19:45,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:19:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:19:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 628860 backedges. 305930 proven. 311051 refuted. 0 times theorem prover too weak. 11879 trivial. 0 not checked. [2022-02-09 23:19:51,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:19:51,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526587805] [2022-02-09 23:19:51,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526587805] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:19:51,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390042802] [2022-02-09 23:19:51,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:19:51,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:19:51,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:19:51,150 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 23:19:51,150 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 23:19:51,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 177 check-sat command(s) [2022-02-09 23:19:51,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:19:51,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-09 23:19:51,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:19:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 628860 backedges. 285175 proven. 8755 refuted. 0 times theorem prover too weak. 334930 trivial. 0 not checked. [2022-02-09 23:19:55,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:19:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 628860 backedges. 278283 proven. 15647 refuted. 0 times theorem prover too weak. 334930 trivial. 0 not checked. [2022-02-09 23:19:59,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390042802] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:19:59,089 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:19:59,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 31, 31] total 162 [2022-02-09 23:19:59,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943211177] [2022-02-09 23:19:59,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:19:59,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2022-02-09 23:19:59,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:19:59,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2022-02-09 23:19:59,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2270, Invalid=23812, Unknown=0, NotChecked=0, Total=26082 [2022-02-09 23:19:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:19:59,104 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:19:59,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 4.419753086419753) internal successors, (716), 162 states have internal predecessors, (716), 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 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:19:59,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:20:03,315 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9756 transitions and produced 6935 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:20:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:20:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:20:03,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-09 23:20:03,517 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 23:20:03,517 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:20:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:20:03,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1898289412, now seen corresponding path program 10 times [2022-02-09 23:20:03,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:20:03,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343148809] [2022-02-09 23:20:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:20:03,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:20:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:20:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 966678 backedges. 471290 proven. 476762 refuted. 0 times theorem prover too weak. 18626 trivial. 0 not checked. [2022-02-09 23:20:12,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:20:12,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343148809] [2022-02-09 23:20:12,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343148809] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:20:12,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716881521] [2022-02-09 23:20:12,553 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:20:12,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:20:12,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:20:12,556 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 23:20:12,560 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 23:20:13,248 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:20:13,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:20:13,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-09 23:20:13,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:20:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 966678 backedges. 437886 proven. 25040 refuted. 0 times theorem prover too weak. 503752 trivial. 0 not checked. [2022-02-09 23:20:19,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:20:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 966678 backedges. 413882 proven. 49044 refuted. 0 times theorem prover too weak. 503752 trivial. 0 not checked. [2022-02-09 23:20:24,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716881521] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:20:24,442 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:20:24,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 35, 35] total 172 [2022-02-09 23:20:24,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495571841] [2022-02-09 23:20:24,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:20:24,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-02-09 23:20:24,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:20:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-02-09 23:20:24,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2596, Invalid=26816, Unknown=0, NotChecked=0, Total=29412 [2022-02-09 23:20:24,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:20:24,447 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:20:24,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 4.267441860465116) internal successors, (734), 172 states have internal predecessors, (734), 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 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:20:24,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:20:27,384 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 30639 transitions and produced 17358 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:20:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:20:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:20:27,419 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 23:20:27,602 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 23:20:27,603 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:20:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:20:27,603 INFO L85 PathProgramCache]: Analyzing trace with hash -813831002, now seen corresponding path program 11 times [2022-02-09 23:20:27,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:20:27,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464865457] [2022-02-09 23:20:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:20:27,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:20:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:20:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1095508 backedges. 534372 proven. 539925 refuted. 0 times theorem prover too weak. 21211 trivial. 0 not checked. [2022-02-09 23:20:36,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:20:36,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464865457] [2022-02-09 23:20:36,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464865457] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:20:36,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693684563] [2022-02-09 23:20:36,806 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:20:36,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:20:36,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:20:36,807 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 23:20:36,807 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 23:20:38,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 330 check-sat command(s) [2022-02-09 23:20:38,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:20:38,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 2852 conjuncts, 36 conjunts are in the unsatisfiable core [2022-02-09 23:20:38,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:20:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1095508 backedges. 697186 proven. 20401 refuted. 0 times theorem prover too weak. 377921 trivial. 0 not checked. [2022-02-09 23:20:44,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:20:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1095508 backedges. 677962 proven. 39625 refuted. 0 times theorem prover too weak. 377921 trivial. 0 not checked. [2022-02-09 23:20:48,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693684563] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:20:48,815 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:20:48,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 37, 37] total 177 [2022-02-09 23:20:48,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015269233] [2022-02-09 23:20:48,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:20:48,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 177 states [2022-02-09 23:20:48,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:20:48,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2022-02-09 23:20:48,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2724, Invalid=28428, Unknown=0, NotChecked=0, Total=31152 [2022-02-09 23:20:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:20:48,821 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:20:48,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 177 states, 177 states have (on average 4.265536723163842) internal successors, (755), 177 states have internal predecessors, (755), 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 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:20:48,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:20:48,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:20:48,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:20:48,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:20:48,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:20:50,710 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10653 transitions and produced 7708 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:20:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:20:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:20:50,731 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 23:20:50,911 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 23:20:50,911 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:20:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:20:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 36218820, now seen corresponding path program 12 times [2022-02-09 23:20:50,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:20:50,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852861721] [2022-02-09 23:20:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:20:50,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:20:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:20:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1232450 backedges. 601435 proven. 607051 refuted. 0 times theorem prover too weak. 23964 trivial. 0 not checked. [2022-02-09 23:20:59,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:20:59,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852861721] [2022-02-09 23:20:59,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852861721] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:20:59,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986738365] [2022-02-09 23:20:59,533 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 23:20:59,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:20:59,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:20:59,534 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 23:20:59,535 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 23:21:03,720 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 483 check-sat command(s) [2022-02-09 23:21:03,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:21:03,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 4345 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-09 23:21:03,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1232450 backedges. 785988 proven. 23079 refuted. 0 times theorem prover too weak. 423383 trivial. 0 not checked. [2022-02-09 23:21:10,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1232450 backedges. 761844 proven. 47223 refuted. 0 times theorem prover too weak. 423383 trivial. 0 not checked. [2022-02-09 23:21:15,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986738365] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:15,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:15,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [126, 41, 41] total 189 [2022-02-09 23:21:15,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432423532] [2022-02-09 23:21:15,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:15,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 189 states [2022-02-09 23:21:15,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2022-02-09 23:21:15,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3120, Invalid=32412, Unknown=0, NotChecked=0, Total=35532 [2022-02-09 23:21:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:15,023 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:15,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 189 states, 189 states have (on average 4.216931216931217) internal successors, (797), 189 states have internal predecessors, (797), 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 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:21:15,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:17,321 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12069 transitions and produced 8800 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:21:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:21:17,345 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 23:21:17,525 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 23:21:17,526 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:21:17,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash -4797146, now seen corresponding path program 13 times [2022-02-09 23:21:17,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:17,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135727741] [2022-02-09 23:21:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:17,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1691948 backedges. 826510 proven. 832207 refuted. 0 times theorem prover too weak. 33231 trivial. 0 not checked. [2022-02-09 23:21:27,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:27,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135727741] [2022-02-09 23:21:27,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135727741] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:27,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644838229] [2022-02-09 23:21:27,828 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 23:21:27,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:27,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:27,832 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 23:21:27,836 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 23:21:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:28,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 5746 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-09 23:21:28,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:21:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1691948 backedges. 766116 proven. 44025 refuted. 0 times theorem prover too weak. 881807 trivial. 0 not checked. [2022-02-09 23:21:35,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:21:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1691948 backedges. 723922 proven. 86219 refuted. 0 times theorem prover too weak. 881807 trivial. 0 not checked. [2022-02-09 23:21:41,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644838229] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:21:41,832 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:21:41,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 45, 45] total 197 [2022-02-09 23:21:41,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596147137] [2022-02-09 23:21:41,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:21:41,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2022-02-09 23:21:41,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:21:41,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2022-02-09 23:21:41,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3306, Invalid=35306, Unknown=0, NotChecked=0, Total=38612 [2022-02-09 23:21:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:41,838 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:21:41,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 4.106598984771574) internal successors, (809), 197 states have internal predecessors, (809), 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 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:21:41,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:21:44,054 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12541 transitions and produced 9164 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:21:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:21:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:21:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:21:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:21:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:21:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:21:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:21:44,078 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 23:21:44,255 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 23:21:44,256 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:21:44,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:21:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash -428583612, now seen corresponding path program 14 times [2022-02-09 23:21:44,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:21:44,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106826769] [2022-02-09 23:21:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:21:44,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:21:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:21:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1861338 backedges. 909497 proven. 915185 refuted. 0 times theorem prover too weak. 36656 trivial. 0 not checked. [2022-02-09 23:21:55,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:21:55,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106826769] [2022-02-09 23:21:55,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106826769] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:21:55,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359810081] [2022-02-09 23:21:55,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:21:55,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:21:55,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:21:55,273 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 23:21:55,274 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 23:21:55,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:21:55,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:21:56,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 6006 conjuncts, 46 conjunts are in the unsatisfiable core [2022-02-09 23:21:56,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1861338 backedges. 842751 proven. 48461 refuted. 0 times theorem prover too weak. 970126 trivial. 0 not checked. [2022-02-09 23:22:03,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1861338 backedges. 796307 proven. 94905 refuted. 0 times theorem prover too weak. 970126 trivial. 0 not checked. [2022-02-09 23:22:10,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359810081] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:10,552 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:10,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [134, 47, 47] total 202 [2022-02-09 23:22:10,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469323878] [2022-02-09 23:22:10,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:10,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2022-02-09 23:22:10,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2022-02-09 23:22:10,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3469, Invalid=37133, Unknown=0, NotChecked=0, Total=40602 [2022-02-09 23:22:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:10,559 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:10,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 202 states have (on average 4.079207920792079) internal successors, (824), 202 states have internal predecessors, (824), 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 23:22:10,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:22:10,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:22:10,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:22:10,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:13,056 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13013 transitions and produced 9528 states. [2022-02-09 23:22:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:22:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:22:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:22:13,081 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 23:22:13,257 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 23:22:13,258 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:22:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:13,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1772636826, now seen corresponding path program 15 times [2022-02-09 23:22:13,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:13,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890866636] [2022-02-09 23:22:13,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:13,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:22:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2038840 backedges. 996465 proven. 1002126 refuted. 0 times theorem prover too weak. 40249 trivial. 0 not checked. [2022-02-09 23:22:25,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:22:25,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890866636] [2022-02-09 23:22:25,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890866636] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:22:25,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719068820] [2022-02-09 23:22:25,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:22:25,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:22:25,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:22:25,927 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 23:22:25,928 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 23:22:27,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 307 check-sat command(s) [2022-02-09 23:22:27,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:22:27,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 2796 conjuncts, 50 conjunts are in the unsatisfiable core [2022-02-09 23:22:27,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:22:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2038840 backedges. 923320 proven. 26890 refuted. 0 times theorem prover too weak. 1088630 trivial. 0 not checked. [2022-02-09 23:22:34,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:22:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2038840 backedges. 900798 proven. 49412 refuted. 0 times theorem prover too weak. 1088630 trivial. 0 not checked. [2022-02-09 23:22:40,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719068820] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:22:40,102 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:22:40,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [136, 51, 51] total 212 [2022-02-09 23:22:40,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822494622] [2022-02-09 23:22:40,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:22:40,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2022-02-09 23:22:40,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:22:40,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2022-02-09 23:22:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3540, Invalid=41192, Unknown=0, NotChecked=0, Total=44732 [2022-02-09 23:22:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:40,109 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:22:40,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 212 states have (on average 4.084905660377358) internal successors, (866), 212 states have internal predecessors, (866), 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 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:22:40,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:22:45,924 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14476 transitions and produced 10473 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:22:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:22:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:22:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:22:45,947 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 23:22:46,131 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 23:22:46,131 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:22:46,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:22:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash -288570684, now seen corresponding path program 16 times [2022-02-09 23:22:46,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:22:46,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761157156] [2022-02-09 23:22:46,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:22:46,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:22:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:23:03,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2620018 backedges. 1281255 proven. 1286727 refuted. 0 times theorem prover too weak. 52036 trivial. 0 not checked. [2022-02-09 23:23:03,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:23:03,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761157156] [2022-02-09 23:23:03,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761157156] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:23:03,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091214006] [2022-02-09 23:23:03,445 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:23:03,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:23:03,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:23:03,446 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 23:23:03,447 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 23:23:04,302 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:23:04,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:23:04,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 7046 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-09 23:23:04,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:23:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2620018 backedges. 1185921 proven. 68335 refuted. 0 times theorem prover too weak. 1365762 trivial. 0 not checked. [2022-02-09 23:23:13,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:23:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2620018 backedges. 1120437 proven. 133819 refuted. 0 times theorem prover too weak. 1365762 trivial. 0 not checked. [2022-02-09 23:23:20,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091214006] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:23:20,870 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:23:20,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [142, 55, 55] total 222 [2022-02-09 23:23:20,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198079096] [2022-02-09 23:23:20,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:23:20,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 222 states [2022-02-09 23:23:20,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:23:20,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 222 interpolants. [2022-02-09 23:23:20,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4191, Invalid=44871, Unknown=0, NotChecked=0, Total=49062 [2022-02-09 23:23:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:23:20,877 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:23:20,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 222 states, 222 states have (on average 3.981981981981982) internal successors, (884), 222 states have internal predecessors, (884), 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 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:23:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:23:20,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:23:24,792 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 35359 transitions and produced 20896 states. [2022-02-09 23:23:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:23:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:23:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:23:24,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-09 23:23:24,993 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 23:23:24,994 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:23:24,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:23:24,995 INFO L85 PathProgramCache]: Analyzing trace with hash 73299430, now seen corresponding path program 17 times [2022-02-09 23:23:24,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:23:24,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785082367] [2022-02-09 23:23:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:23:24,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:23:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:23:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2829968 backedges. 1384147 proven. 1389520 refuted. 0 times theorem prover too weak. 56301 trivial. 0 not checked. [2022-02-09 23:23:42,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:23:42,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785082367] [2022-02-09 23:23:42,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785082367] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:23:42,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841089296] [2022-02-09 23:23:42,155 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:23:42,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:23:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:23:42,157 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 23:23:42,157 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 23:23:46,923 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 520 check-sat command(s) [2022-02-09 23:23:46,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:23:46,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 4502 conjuncts, 56 conjunts are in the unsatisfiable core [2022-02-09 23:23:47,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:23:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2829968 backedges. 1801851 proven. 53026 refuted. 0 times theorem prover too weak. 975091 trivial. 0 not checked. [2022-02-09 23:23:55,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:24:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2829968 backedges. 1751907 proven. 102970 refuted. 0 times theorem prover too weak. 975091 trivial. 0 not checked. [2022-02-09 23:24:04,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841089296] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:24:04,127 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:24:04,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [144, 57, 57] total 227 [2022-02-09 23:24:04,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157253593] [2022-02-09 23:24:04,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:24:04,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 227 states [2022-02-09 23:24:04,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:24:04,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 227 interpolants. [2022-02-09 23:24:04,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4389, Invalid=46913, Unknown=0, NotChecked=0, Total=51302 [2022-02-09 23:24:04,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:04,134 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:24:04,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 227 states, 227 states have (on average 3.986784140969163) internal successors, (905), 227 states have internal predecessors, (905), 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 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:24:04,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:24:04,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:24:04,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:24:04,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:24:04,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:24:04,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:24:04,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:07,646 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15373 transitions and produced 11246 states. [2022-02-09 23:24:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:24:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:24:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:24:07,682 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 23:24:07,875 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 23:24:07,875 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:24:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:24:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash -920665724, now seen corresponding path program 18 times [2022-02-09 23:24:07,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:24:07,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44783122] [2022-02-09 23:24:07,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:24:07,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:24:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:24:29,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3048030 backedges. 1491020 proven. 1496276 refuted. 0 times theorem prover too weak. 60734 trivial. 0 not checked. [2022-02-09 23:24:29,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:24:29,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44783122] [2022-02-09 23:24:29,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44783122] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:24:29,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521769373] [2022-02-09 23:24:29,207 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 23:24:29,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:24:29,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:24:29,208 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 23:24:29,209 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 23:24:39,496 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 743 check-sat command(s) [2022-02-09 23:24:39,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:24:39,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 6595 conjuncts, 60 conjunts are in the unsatisfiable core [2022-02-09 23:24:39,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:24:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3048030 backedges. 1943183 proven. 57294 refuted. 0 times theorem prover too weak. 1047553 trivial. 0 not checked. [2022-02-09 23:24:49,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:24:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3048030 backedges. 1885439 proven. 115038 refuted. 0 times theorem prover too weak. 1047553 trivial. 0 not checked. [2022-02-09 23:24:57,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521769373] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:24:57,892 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:24:57,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [146, 61, 61] total 239 [2022-02-09 23:24:57,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134764639] [2022-02-09 23:24:57,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:24:57,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 239 states [2022-02-09 23:24:57,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:24:57,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2022-02-09 23:24:57,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4985, Invalid=51897, Unknown=0, NotChecked=0, Total=56882 [2022-02-09 23:24:57,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:24:57,900 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:24:57,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 239 states, 239 states have (on average 3.9623430962343096) internal successors, (947), 239 states have internal predecessors, (947), 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 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:24:57,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:24:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:24:57,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:25:01,740 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 16789 transitions and produced 12338 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:25:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:25:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:25:01,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:25:01,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-02-09 23:25:01,951 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 23:25:01,952 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:25:01,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:25:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1721338266, now seen corresponding path program 19 times [2022-02-09 23:25:01,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:25:01,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922880812] [2022-02-09 23:25:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:25:01,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:25:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:25:29,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3750888 backedges. 1835525 proven. 1840322 refuted. 0 times theorem prover too weak. 75041 trivial. 0 not checked. [2022-02-09 23:25:29,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:25:29,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922880812] [2022-02-09 23:25:29,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922880812] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:25:29,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149550837] [2022-02-09 23:25:29,210 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 23:25:29,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:25:29,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:25:29,211 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 23:25:29,213 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 23:25:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:25:30,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 8346 conjuncts, 64 conjunts are in the unsatisfiable core [2022-02-09 23:25:30,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:25:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3750888 backedges. 1697301 proven. 97970 refuted. 0 times theorem prover too weak. 1955617 trivial. 0 not checked. [2022-02-09 23:25:43,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:25:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3750888 backedges. 1603427 proven. 191844 refuted. 0 times theorem prover too weak. 1955617 trivial. 0 not checked. [2022-02-09 23:25:55,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149550837] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:25:55,275 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:25:55,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 65, 65] total 247 [2022-02-09 23:25:55,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796108430] [2022-02-09 23:25:55,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:25:55,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 247 states [2022-02-09 23:25:55,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:25:55,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 247 interpolants. [2022-02-09 23:25:55,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5251, Invalid=55511, Unknown=0, NotChecked=0, Total=60762 [2022-02-09 23:25:55,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:25:55,281 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:25:55,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 247 states, 247 states have (on average 3.882591093117409) internal successors, (959), 247 states have internal predecessors, (959), 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 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:25:55,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:25:59,236 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 17261 transitions and produced 12702 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:25:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:25:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:25:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:25:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:25:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:25:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:25:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:25:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:25:59,269 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 23:25:59,447 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 23:25:59,448 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:25:59,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:25:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash -761835772, now seen corresponding path program 20 times [2022-02-09 23:25:59,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:25:59,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338548713] [2022-02-09 23:25:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:25:59,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:26:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:26:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4001398 backedges. 1958322 proven. 1962930 refuted. 0 times theorem prover too weak. 80146 trivial. 0 not checked. [2022-02-09 23:26:27,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:26:27,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338548713] [2022-02-09 23:26:27,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338548713] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:26:27,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56943982] [2022-02-09 23:26:27,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 23:26:27,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:26:27,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:26:27,343 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 23:26:27,344 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 23:26:28,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 23:26:28,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:26:28,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 8606 conjuncts, 66 conjunts are in the unsatisfiable core [2022-02-09 23:26:28,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:26:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4001398 backedges. 1810566 proven. 104536 refuted. 0 times theorem prover too weak. 2086296 trivial. 0 not checked. [2022-02-09 23:26:41,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:26:51,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4001398 backedges. 1710402 proven. 204700 refuted. 0 times theorem prover too weak. 2086296 trivial. 0 not checked. [2022-02-09 23:26:51,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56943982] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:26:51,466 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:26:51,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 67, 67] total 252 [2022-02-09 23:26:51,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989686029] [2022-02-09 23:26:51,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:26:51,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 252 states [2022-02-09 23:26:51,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:26:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 252 interpolants. [2022-02-09 23:26:51,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5484, Invalid=57768, Unknown=0, NotChecked=0, Total=63252 [2022-02-09 23:26:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:26:51,472 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:26:51,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 252 states, 252 states have (on average 3.865079365079365) internal successors, (974), 252 states have internal predecessors, (974), 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 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:26:51,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:26:51,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:26:56,360 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 17733 transitions and produced 13066 states. [2022-02-09 23:26:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:26:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:26:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:26:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:26:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:26:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:26:56,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-02-09 23:26:56,587 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 23:26:56,587 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:26:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:26:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1266094426, now seen corresponding path program 21 times [2022-02-09 23:26:56,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:26:56,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063699541] [2022-02-09 23:26:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:26:56,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:27:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:27:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4260020 backedges. 2085100 proven. 2089501 refuted. 0 times theorem prover too weak. 85419 trivial. 0 not checked. [2022-02-09 23:27:24,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:27:24,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063699541] [2022-02-09 23:27:24,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063699541] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:27:24,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588066213] [2022-02-09 23:27:24,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 23:27:24,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:27:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:27:24,455 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 23:27:24,455 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 23:27:28,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 437 check-sat command(s) [2022-02-09 23:27:28,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:27:28,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 3896 conjuncts, 70 conjunts are in the unsatisfiable core [2022-02-09 23:27:28,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:27:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4260020 backedges. 1927765 proven. 54925 refuted. 0 times theorem prover too weak. 2277330 trivial. 0 not checked. [2022-02-09 23:27:38,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:27:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4260020 backedges. 1880613 proven. 102077 refuted. 0 times theorem prover too weak. 2277330 trivial. 0 not checked. [2022-02-09 23:27:46,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588066213] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:27:46,466 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:27:46,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [156, 71, 71] total 262 [2022-02-09 23:27:46,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546802655] [2022-02-09 23:27:46,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:27:46,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 262 states [2022-02-09 23:27:46,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:27:46,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 262 interpolants. [2022-02-09 23:27:46,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5410, Invalid=62972, Unknown=0, NotChecked=0, Total=68382 [2022-02-09 23:27:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:27:46,476 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:27:46,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 262 states, 262 states have (on average 3.877862595419847) internal successors, (1016), 262 states have internal predecessors, (1016), 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 23:27:46,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:27:46,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:27:46,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:27:46,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:27:46,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:27:46,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:27:55,056 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19196 transitions and produced 14011 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:27:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:27:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-09 23:27:55,080 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 23:27:55,258 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 23:27:55,258 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:27:55,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:27:55,259 INFO L85 PathProgramCache]: Analyzing trace with hash -500458364, now seen corresponding path program 22 times [2022-02-09 23:27:55,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:27:55,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398585599] [2022-02-09 23:27:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:27:55,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:28:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:28:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5084558 backedges. 2489320 proven. 2492992 refuted. 0 times theorem prover too weak. 102246 trivial. 0 not checked. [2022-02-09 23:28:28,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:28:28,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398585599] [2022-02-09 23:28:28,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398585599] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:28:28,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576503996] [2022-02-09 23:28:28,815 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 23:28:28,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:28:28,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:28:28,816 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 23:28:28,817 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 23:28:30,052 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 23:28:30,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:28:30,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 9646 conjuncts, 74 conjunts are in the unsatisfiable core [2022-02-09 23:28:30,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:28:43,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5084558 backedges. 2300256 proven. 132930 refuted. 0 times theorem prover too weak. 2651372 trivial. 0 not checked. [2022-02-09 23:28:43,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:28:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5084558 backedges. 2172892 proven. 260294 refuted. 0 times theorem prover too weak. 2651372 trivial. 0 not checked. [2022-02-09 23:28:58,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576503996] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:28:58,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:28:58,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 75, 75] total 272 [2022-02-09 23:28:58,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080008505] [2022-02-09 23:28:58,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:28:58,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 272 states [2022-02-09 23:28:58,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:28:58,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 272 interpolants. [2022-02-09 23:28:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6486, Invalid=67226, Unknown=0, NotChecked=0, Total=73712 [2022-02-09 23:28:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:28:58,098 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:28:58,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 272 states, 272 states have (on average 3.801470588235294) internal successors, (1034), 272 states have internal predecessors, (1034), 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 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:28:58,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:28:58,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:28:58,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:28:58,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:28:58,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:28:58,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-09 23:28:58,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:29:04,293 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 40079 transitions and produced 24434 states. [2022-02-09 23:29:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:29:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:29:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-09 23:29:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-02-09 23:29:04,327 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 23:29:04,495 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 23:29:04,496 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:29:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:29:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1463365850, now seen corresponding path program 23 times [2022-02-09 23:29:04,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:29:04,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626966855] [2022-02-09 23:29:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:29:04,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 23:29:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 23:29:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5375628 backedges. 2632022 proven. 2635415 refuted. 0 times theorem prover too weak. 108191 trivial. 0 not checked. [2022-02-09 23:29:38,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 23:29:38,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626966855] [2022-02-09 23:29:38,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626966855] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 23:29:38,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909393862] [2022-02-09 23:29:38,730 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 23:29:38,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 23:29:38,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 23:29:38,731 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 23:29:38,732 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 23:29:49,547 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 710 check-sat command(s) [2022-02-09 23:29:49,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 23:29:49,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 6152 conjuncts, 76 conjunts are in the unsatisfiable core [2022-02-09 23:29:49,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 23:30:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5375628 backedges. 3422816 proven. 100951 refuted. 0 times theorem prover too weak. 1851861 trivial. 0 not checked. [2022-02-09 23:30:02,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 23:30:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5375628 backedges. 3327752 proven. 196015 refuted. 0 times theorem prover too weak. 1851861 trivial. 0 not checked. [2022-02-09 23:30:17,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909393862] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 23:30:17,407 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 23:30:17,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 77, 77] total 277 [2022-02-09 23:30:17,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083927484] [2022-02-09 23:30:17,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 23:30:17,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 277 states [2022-02-09 23:30:17,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 23:30:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 277 interpolants. [2022-02-09 23:30:17,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6754, Invalid=69698, Unknown=0, NotChecked=0, Total=76452 [2022-02-09 23:30:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:30:17,414 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 23:30:17,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 277 states, 277 states have (on average 3.808664259927798) internal successors, (1055), 277 states have internal predecessors, (1055), 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 23:30:17,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:30:17,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:30:17,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-09 23:30:17,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2022-02-09 23:30:17,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 23:30:22,899 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 20093 transitions and produced 14784 states. [2022-02-09 23:30:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 23:30:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 23:30:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:30:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 23:30:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 23:30:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-02-09 23:30:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-02-09 23:30:22,928 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 23:30:23,101 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 23:30:23,101 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 23:30:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 23:30:23,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1872590012, now seen corresponding path program 24 times [2022-02-09 23:30:23,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 23:30:23,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822645993] [2022-02-09 23:30:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 23:30:23,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2022-02-09 23:30:45,234 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 23:30:45,235 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 23:30:46,266 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 23:30:46,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown