/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 00:26:40,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:26:40,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:26:40,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 00:26:40,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 00:26:40,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 00:26:40,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 00:26:40,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 00:26:40,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 00:26:40,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 00:26:40,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 00:26:40,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 00:26:40,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 00:26:40,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 00:26:40,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 00:26:40,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 00:26:40,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 00:26:40,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 00:26:40,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:26:40,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:26:40,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:26:40,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:26:40,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:26:40,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:26:40,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:26:40,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:26:40,798 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:26:40,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:26:40,798 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:26:40,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:26:40,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:26:40,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:26:40,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:26:40,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:26:40,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:26:40,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:26:40,801 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:26:40,801 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:26:40,801 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:26:40,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:26:40,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:26:41,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:26:41,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:26:41,020 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 00:26:41,022 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 00:26:41,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl [2022-03-04 00:26:41,023 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl' [2022-03-04 00:26:41,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:26:41,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 00:26:41,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:26:41,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:26:41,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:26:41,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,065 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 00:26:41,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:26:41,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:26:41,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:26:41,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:26:41,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:26:41,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:26:41,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:26:41,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:26:41,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/1) ... [2022-03-04 00:26:41,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:26:41,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:41,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 00:26:41,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 00:26:41,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 00:26:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 00:26:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 00:26:41,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 00:26:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 00:26:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 00:26:41,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 00:26:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:26:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:26:41,141 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 00:26:41,173 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:26:41,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:26:41,260 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:26:41,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:26:41,265 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 00:26:41,266 INFO L202 PluginConnector]: Adding new model clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:26:41 BoogieIcfgContainer [2022-03-04 00:26:41,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:26:41,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:26:41,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:26:41,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:26:41,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:26:41" (1/2) ... [2022-03-04 00:26:41,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308a3b30 and model type clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:26:41, skipping insertion in model container [2022-03-04 00:26:41,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:26:41" (2/2) ... [2022-03-04 00:26:41,274 INFO L111 eAbstractionObserver]: Analyzing ICFG clever.wvr.bpl [2022-03-04 00:26:41,278 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:26:41,278 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:26:41,278 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:26:41,278 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:26:41,312 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 00:26:41,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:26:41,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:41,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 00:26:41,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 00:26:41,389 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:26:41,394 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 00:26:41,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 00:26:41,714 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 953 transitions and produced 584 states. [2022-03-04 00:26:41,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:41,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:41,721 INFO L85 PathProgramCache]: Analyzing trace with hash -400801889, now seen corresponding path program 1 times [2022-03-04 00:26:41,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:41,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860669948] [2022-03-04 00:26:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:41,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 125 proven. 203 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-04 00:26:42,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:42,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860669948] [2022-03-04 00:26:42,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860669948] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:26:42,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343288405] [2022-03-04 00:26:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:42,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:42,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:42,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:26:42,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 00:26:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:42,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-04 00:26:42,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:26:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 184 proven. 29 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-04 00:26:42,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:26:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 177 proven. 36 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-04 00:26:42,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343288405] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:26:42,755 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:26:42,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 29 [2022-03-04 00:26:42,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843531651] [2022-03-04 00:26:42,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:26:42,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-04 00:26:42,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-04 00:26:42,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2022-03-04 00:26:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:42,781 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:42,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.0) internal successors, (116), 29 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:26:42,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:43,975 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 867 transitions and produced 588 states. [2022-03-04 00:26:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:44,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 00:26:44,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 00:26:44,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:44,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash -940986321, now seen corresponding path program 2 times [2022-03-04 00:26:44,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:44,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343536946] [2022-03-04 00:26:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:44,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 226 proven. 370 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-04 00:26:44,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:44,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343536946] [2022-03-04 00:26:44,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343536946] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:26:44,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338214283] [2022-03-04 00:26:44,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:26:44,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:44,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:44,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:26:44,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 00:26:44,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:26:44,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:26:44,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-04 00:26:44,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:26:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 375 proven. 221 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-04 00:26:44,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:26:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 375 proven. 221 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-04 00:26:44,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338214283] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:26:44,807 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:26:44,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 14 [2022-03-04 00:26:44,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6924087] [2022-03-04 00:26:44,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:26:44,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-04 00:26:44,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:44,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-04 00:26:44,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-03-04 00:26:44,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:44,811 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:44,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:26:44,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:44,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:45,040 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 628 transitions and produced 505 states. [2022-03-04 00:26:45,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:45,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:45,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 00:26:45,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:45,252 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:45,252 INFO L85 PathProgramCache]: Analyzing trace with hash 25625884, now seen corresponding path program 3 times [2022-03-04 00:26:45,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:45,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014295221] [2022-03-04 00:26:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:45,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:26:46,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:46,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014295221] [2022-03-04 00:26:46,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014295221] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:26:46,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407135173] [2022-03-04 00:26:46,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:26:46,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:46,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:26:46,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 00:26:46,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2022-03-04 00:26:46,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:26:46,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 62 conjunts are in the unsatisfiable core [2022-03-04 00:26:46,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:26:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 1 proven. 679 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:26:47,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:26:48,926 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:26:48,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407135173] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:26:48,926 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:26:48,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31, 31] total 70 [2022-03-04 00:26:48,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694124368] [2022-03-04 00:26:48,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:26:48,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-03-04 00:26:48,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:48,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-03-04 00:26:48,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=4786, Unknown=0, NotChecked=0, Total=4970 [2022-03-04 00:26:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:48,929 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:48,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.0985915492957745) internal successors, (220), 70 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:26:48,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:48,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:48,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:51,241 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 510 transitions and produced 458 states. [2022-03-04 00:26:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:51,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 00:26:51,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:51,452 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:51,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:51,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1439785878, now seen corresponding path program 4 times [2022-03-04 00:26:51,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:51,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073622469] [2022-03-04 00:26:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 1102 proven. 267 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-04 00:26:51,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:51,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073622469] [2022-03-04 00:26:51,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073622469] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:26:51,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141626149] [2022-03-04 00:26:51,756 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 00:26:51,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:51,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:51,757 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:26:51,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 00:26:51,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 00:26:51,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:26:51,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-04 00:26:51,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:26:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 1157 proven. 212 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-04 00:26:52,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:26:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 1147 proven. 222 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-04 00:26:52,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141626149] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:26:52,634 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:26:52,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 62 [2022-03-04 00:26:52,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834443573] [2022-03-04 00:26:52,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:26:52,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-04 00:26:52,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:52,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-04 00:26:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1020, Invalid=2762, Unknown=0, NotChecked=0, Total=3782 [2022-03-04 00:26:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:52,637 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:52,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.338709677419355) internal successors, (207), 62 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:26:52,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:52,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:52,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:52,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:53,689 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1538 transitions and produced 1039 states. [2022-03-04 00:26:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:26:53,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 00:26:53,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:53,899 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:53,900 INFO L85 PathProgramCache]: Analyzing trace with hash -650435350, now seen corresponding path program 5 times [2022-03-04 00:26:53,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:53,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933565658] [2022-03-04 00:26:53,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:53,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 12948 backedges. 6142 proven. 1173 refuted. 0 times theorem prover too weak. 5633 trivial. 0 not checked. [2022-03-04 00:26:54,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:54,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933565658] [2022-03-04 00:26:54,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933565658] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:26:54,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912410772] [2022-03-04 00:26:54,428 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 00:26:54,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:54,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:54,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:26:54,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 00:26:54,542 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2022-03-04 00:26:54,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:26:54,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-04 00:26:54,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:26:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12948 backedges. 6233 proven. 1082 refuted. 0 times theorem prover too weak. 5633 trivial. 0 not checked. [2022-03-04 00:26:55,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:26:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12948 backedges. 6187 proven. 1128 refuted. 0 times theorem prover too weak. 5633 trivial. 0 not checked. [2022-03-04 00:26:55,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912410772] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:26:55,952 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:26:55,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35, 35] total 69 [2022-03-04 00:26:55,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613327096] [2022-03-04 00:26:55,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:26:55,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-03-04 00:26:55,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-03-04 00:26:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=3786, Unknown=0, NotChecked=0, Total=4692 [2022-03-04 00:26:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:55,955 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:55,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 3.260869565217391) internal successors, (225), 69 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:26:55,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:55,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:55,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:55,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:26:55,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:56,972 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1588 transitions and produced 1074 states. [2022-03-04 00:26:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:26:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:26:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:26:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:26:56,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 00:26:57,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:57,175 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:57,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1397711820, now seen corresponding path program 6 times [2022-03-04 00:26:57,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:57,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237341622] [2022-03-04 00:26:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:57,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:27:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 14373 backedges. 0 proven. 14369 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:27:04,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:27:04,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237341622] [2022-03-04 00:27:04,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237341622] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:27:04,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015469697] [2022-03-04 00:27:04,373 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 00:27:04,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:27:04,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:27:04,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:27:04,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 00:27:04,510 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 70 check-sat command(s) [2022-03-04 00:27:04,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:27:04,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 244 conjunts are in the unsatisfiable core [2022-03-04 00:27:04,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:27:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 14373 backedges. 1 proven. 14369 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:27:22,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:27:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 14373 backedges. 1 proven. 14369 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:27:31,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015469697] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:27:31,871 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:27:31,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 118, 122] total 274 [2022-03-04 00:27:31,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672281950] [2022-03-04 00:27:31,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:27:31,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 275 states [2022-03-04 00:27:31,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:27:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 275 interpolants. [2022-03-04 00:27:31,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=687, Invalid=74663, Unknown=0, NotChecked=0, Total=75350 [2022-03-04 00:27:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:27:31,882 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:27:31,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 275 states, 275 states have (on average 2.6436363636363636) internal successors, (727), 274 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:27:31,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:31,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:27:31,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:31,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:27:31,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:27:31,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:27:43,549 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1170 transitions and produced 865 states. [2022-03-04 00:27:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:27:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:27:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:27:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:27:43,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 00:27:43,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:27:43,750 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:27:43,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:27:43,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2047803006, now seen corresponding path program 7 times [2022-03-04 00:27:43,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:27:43,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169989704] [2022-03-04 00:27:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:27:43,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:27:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:27:44,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14667 backedges. 6957 proven. 1323 refuted. 0 times theorem prover too weak. 6387 trivial. 0 not checked. [2022-03-04 00:27:44,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:27:44,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169989704] [2022-03-04 00:27:44,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169989704] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:27:44,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091918608] [2022-03-04 00:27:44,328 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 00:27:44,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:27:44,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:27:44,329 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:27:44,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 00:27:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:27:44,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-04 00:27:44,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:27:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 14667 backedges. 7054 proven. 1226 refuted. 0 times theorem prover too weak. 6387 trivial. 0 not checked. [2022-03-04 00:27:45,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:27:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 14667 backedges. 7005 proven. 1275 refuted. 0 times theorem prover too weak. 6387 trivial. 0 not checked. [2022-03-04 00:27:45,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091918608] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:27:45,886 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:27:45,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 37] total 73 [2022-03-04 00:27:45,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796962337] [2022-03-04 00:27:45,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:27:45,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-03-04 00:27:45,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:27:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-03-04 00:27:45,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1013, Invalid=4243, Unknown=0, NotChecked=0, Total=5256 [2022-03-04 00:27:45,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:27:45,889 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:27:45,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.2465753424657535) internal successors, (237), 73 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:27:45,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:27:46,869 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1648 transitions and produced 1116 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:27:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:27:46,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 00:27:47,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 00:27:47,088 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:27:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:27:47,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1720469348, now seen corresponding path program 8 times [2022-03-04 00:27:47,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:27:47,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734478954] [2022-03-04 00:27:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:27:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:27:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:27:54,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16182 backedges. 0 proven. 16178 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:27:54,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:27:54,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734478954] [2022-03-04 00:27:54,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734478954] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:27:54,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442615404] [2022-03-04 00:27:54,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:27:54,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:27:54,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:27:54,824 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:27:54,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 00:27:54,913 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:27:54,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:27:54,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 258 conjunts are in the unsatisfiable core [2022-03-04 00:27:54,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:28:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16182 backedges. 0 proven. 16178 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:28:15,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:28:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 16182 backedges. 1 proven. 16177 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:28:24,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442615404] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:28:24,732 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:28:24,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 124, 129] total 289 [2022-03-04 00:28:24,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167315552] [2022-03-04 00:28:24,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:28:24,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 290 states [2022-03-04 00:28:24,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:28:24,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 290 interpolants. [2022-03-04 00:28:24,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=763, Invalid=83047, Unknown=0, NotChecked=0, Total=83810 [2022-03-04 00:28:24,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:28:24,753 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:28:24,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 290 states, 290 states have (on average 2.6448275862068966) internal successors, (767), 289 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:24,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:28:36,753 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1227 transitions and produced 905 states. [2022-03-04 00:28:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:28:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:28:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:28:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:28:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:36,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 00:28:36,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:28:36,957 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:28:36,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:28:36,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2060540310, now seen corresponding path program 9 times [2022-03-04 00:28:36,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:28:36,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719302646] [2022-03-04 00:28:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:28:36,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:28:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:28:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16494 backedges. 7823 proven. 1482 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-03-04 00:28:37,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:28:37,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719302646] [2022-03-04 00:28:37,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719302646] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:28:37,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753447767] [2022-03-04 00:28:37,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:28:37,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:28:37,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:28:37,564 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:28:37,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 00:28:37,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 55 check-sat command(s) [2022-03-04 00:28:37,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:28:37,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-04 00:28:37,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:28:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 16494 backedges. 4106 proven. 4987 refuted. 0 times theorem prover too weak. 7401 trivial. 0 not checked. [2022-03-04 00:28:38,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:28:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16494 backedges. 446 proven. 8647 refuted. 0 times theorem prover too weak. 7401 trivial. 0 not checked. [2022-03-04 00:28:39,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753447767] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:28:39,234 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:28:39,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39, 39] total 77 [2022-03-04 00:28:39,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921845967] [2022-03-04 00:28:39,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:28:39,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-03-04 00:28:39,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:28:39,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-03-04 00:28:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1126, Invalid=4726, Unknown=0, NotChecked=0, Total=5852 [2022-03-04 00:28:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:28:39,237 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:28:39,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.25974025974026) internal successors, (251), 77 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:39,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:28:40,272 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1671 transitions and produced 1140 states. [2022-03-04 00:28:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:28:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:28:40,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 00:28:40,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-04 00:28:40,474 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:28:40,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:28:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash -841816396, now seen corresponding path program 10 times [2022-03-04 00:28:40,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:28:40,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394068019] [2022-03-04 00:28:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:28:40,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:28:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:28:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18099 backedges. 0 proven. 18095 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:28:48,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:28:48,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394068019] [2022-03-04 00:28:48,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394068019] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:28:48,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767530320] [2022-03-04 00:28:48,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 00:28:48,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:28:48,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:28:48,882 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:28:48,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 00:28:48,976 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 00:28:48,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:28:48,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 272 conjunts are in the unsatisfiable core [2022-03-04 00:28:48,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:29:10,940 INFO L134 CoverageAnalysis]: Checked inductivity of 18099 backedges. 0 proven. 18095 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:29:10,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:29:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18099 backedges. 1 proven. 18094 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:29:21,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767530320] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:29:21,576 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:29:21,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [138, 131, 136] total 305 [2022-03-04 00:29:21,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147302725] [2022-03-04 00:29:21,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:29:21,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 306 states [2022-03-04 00:29:21,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:29:21,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 306 interpolants. [2022-03-04 00:29:21,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=804, Invalid=92526, Unknown=0, NotChecked=0, Total=93330 [2022-03-04 00:29:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:29:21,581 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:29:21,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 306 states, 306 states have (on average 2.633986928104575) internal successors, (806), 305 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:21,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:29:34,611 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1287 transitions and produced 947 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:34,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 00:29:34,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-04 00:29:34,835 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:29:34,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:29:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash 984038658, now seen corresponding path program 11 times [2022-03-04 00:29:34,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:29:34,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753029830] [2022-03-04 00:29:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:29:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:29:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:29:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18429 backedges. 8740 proven. 1650 refuted. 0 times theorem prover too weak. 8039 trivial. 0 not checked. [2022-03-04 00:29:35,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:29:35,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753029830] [2022-03-04 00:29:35,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753029830] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:29:35,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073581726] [2022-03-04 00:29:35,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 00:29:35,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:29:35,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:29:35,471 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:29:35,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-04 00:29:35,618 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2022-03-04 00:29:35,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:29:35,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 40 conjunts are in the unsatisfiable core [2022-03-04 00:29:35,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:29:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18429 backedges. 8849 proven. 1541 refuted. 0 times theorem prover too weak. 8039 trivial. 0 not checked. [2022-03-04 00:29:36,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:29:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18429 backedges. 8794 proven. 1596 refuted. 0 times theorem prover too weak. 8039 trivial. 0 not checked. [2022-03-04 00:29:37,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073581726] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:29:37,196 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:29:37,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 41] total 81 [2022-03-04 00:29:37,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874098700] [2022-03-04 00:29:37,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:29:37,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-03-04 00:29:37,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:29:37,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-03-04 00:29:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1245, Invalid=5235, Unknown=0, NotChecked=0, Total=6480 [2022-03-04 00:29:37,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:29:37,198 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:29:37,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.2222222222222223) internal successors, (261), 81 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:29:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:29:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:29:37,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:29:37,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:37,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:37,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:37,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:37,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:29:38,343 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1731 transitions and produced 1182 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:29:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:29:38,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-04 00:29:38,544 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 [2022-03-04 00:29:38,544 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:29:38,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:29:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash -793802468, now seen corresponding path program 12 times [2022-03-04 00:29:38,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:29:38,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317367746] [2022-03-04 00:29:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:29:38,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:29:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:29:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 20124 backedges. 0 proven. 20120 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:29:47,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:29:47,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317367746] [2022-03-04 00:29:47,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317367746] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:29:47,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417389809] [2022-03-04 00:29:47,772 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 00:29:47,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:29:47,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:29:47,774 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:29:47,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-04 00:29:47,950 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 82 check-sat command(s) [2022-03-04 00:29:47,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:29:47,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 286 conjunts are in the unsatisfiable core [2022-03-04 00:29:47,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:30:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 20124 backedges. 1 proven. 20120 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:30:12,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:30:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 20124 backedges. 1 proven. 20120 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:30:24,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417389809] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:30:24,434 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:30:24,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [145, 139, 143] total 322 [2022-03-04 00:30:24,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562913659] [2022-03-04 00:30:24,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:30:24,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-04 00:30:24,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:30:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-04 00:30:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=802, Invalid=103204, Unknown=0, NotChecked=0, Total=104006 [2022-03-04 00:30:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:30:24,439 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:30:24,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 2.613003095975232) internal successors, (844), 322 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:30:24,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:24,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:30:24,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:30:40,246 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1384 transitions and produced 1007 states. [2022-03-04 00:30:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:30:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:30:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:30:40,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-04 00:30:40,447 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 [2022-03-04 00:30:40,448 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:30:40,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:30:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash 390342634, now seen corresponding path program 13 times [2022-03-04 00:30:40,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:30:40,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475570267] [2022-03-04 00:30:40,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:30:40,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:30:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:30:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 20472 backedges. 9708 proven. 1827 refuted. 0 times theorem prover too weak. 8937 trivial. 0 not checked. [2022-03-04 00:30:41,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:30:41,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475570267] [2022-03-04 00:30:41,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475570267] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:30:41,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345346251] [2022-03-04 00:30:41,091 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 00:30:41,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:30:41,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:30:41,093 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:30:41,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-04 00:30:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:30:41,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-04 00:30:41,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:30:42,316 INFO L134 CoverageAnalysis]: Checked inductivity of 20472 backedges. 9823 proven. 1712 refuted. 0 times theorem prover too weak. 8937 trivial. 0 not checked. [2022-03-04 00:30:42,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:30:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 20472 backedges. 9765 proven. 1770 refuted. 0 times theorem prover too weak. 8937 trivial. 0 not checked. [2022-03-04 00:30:42,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345346251] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:30:42,816 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:30:42,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 43, 43] total 85 [2022-03-04 00:30:42,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476111038] [2022-03-04 00:30:42,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:30:42,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-03-04 00:30:42,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:30:42,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-03-04 00:30:42,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1370, Invalid=5770, Unknown=0, NotChecked=0, Total=7140 [2022-03-04 00:30:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:30:42,818 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:30:42,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 3.211764705882353) internal successors, (273), 85 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:30:42,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:42,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:30:42,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:42,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:30:42,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:30:43,965 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1828 transitions and produced 1242 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:30:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:30:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:30:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:30:43,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-04 00:30:44,170 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 [2022-03-04 00:30:44,170 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:30:44,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:30:44,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1884475084, now seen corresponding path program 14 times [2022-03-04 00:30:44,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:30:44,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998313442] [2022-03-04 00:30:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:30:44,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:30:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:30:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 22257 backedges. 0 proven. 22253 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:30:54,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:30:54,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998313442] [2022-03-04 00:30:54,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998313442] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:30:54,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642990946] [2022-03-04 00:30:54,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:30:54,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:30:54,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:30:54,325 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:30:54,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-04 00:30:54,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:30:54,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:30:54,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 300 conjunts are in the unsatisfiable core [2022-03-04 00:30:54,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:31:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22257 backedges. 0 proven. 22253 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:31:20,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:31:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 22257 backedges. 1 proven. 22252 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:31:33,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642990946] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:31:33,353 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:31:33,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 145, 150] total 337 [2022-03-04 00:31:33,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115940103] [2022-03-04 00:31:33,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:31:33,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 338 states [2022-03-04 00:31:33,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:31:33,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 338 interpolants. [2022-03-04 00:31:33,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=886, Invalid=113020, Unknown=0, NotChecked=0, Total=113906 [2022-03-04 00:31:33,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:31:33,358 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:31:33,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 338 states, 338 states have (on average 2.6153846153846154) internal successors, (884), 337 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) [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:33,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:31:49,692 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1407 transitions and produced 1031 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:31:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:49,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-04 00:31:49,893 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 [2022-03-04 00:31:49,893 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:31:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:31:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2135885694, now seen corresponding path program 15 times [2022-03-04 00:31:49,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:31:49,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768637790] [2022-03-04 00:31:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:31:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:31:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:31:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 22623 backedges. 10727 proven. 2013 refuted. 0 times theorem prover too weak. 9883 trivial. 0 not checked. [2022-03-04 00:31:50,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:31:50,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768637790] [2022-03-04 00:31:50,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768637790] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:31:50,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451104309] [2022-03-04 00:31:50,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:31:50,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:31:50,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:31:50,631 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:31:50,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-04 00:31:50,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2022-03-04 00:31:50,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:31:50,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-04 00:31:50,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:31:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 22623 backedges. 5636 proven. 6856 refuted. 0 times theorem prover too weak. 10131 trivial. 0 not checked. [2022-03-04 00:31:52,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:31:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 22623 backedges. 611 proven. 11881 refuted. 0 times theorem prover too weak. 10131 trivial. 0 not checked. [2022-03-04 00:31:52,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451104309] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:31:52,682 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:31:52,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45, 45] total 89 [2022-03-04 00:31:52,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228692047] [2022-03-04 00:31:52,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:31:52,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-03-04 00:31:52,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:31:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-03-04 00:31:52,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1501, Invalid=6331, Unknown=0, NotChecked=0, Total=7832 [2022-03-04 00:31:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:31:52,684 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:31:52,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.2247191011235956) internal successors, (287), 89 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:52,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:31:53,939 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1851 transitions and produced 1266 states. [2022-03-04 00:31:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:31:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:31:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:31:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:31:53,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-04 00:31:54,142 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 [2022-03-04 00:31:54,143 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:31:54,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:31:54,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1554110876, now seen corresponding path program 16 times [2022-03-04 00:31:54,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:31:54,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647719411] [2022-03-04 00:31:54,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:31:54,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:31:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:32:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 24498 backedges. 0 proven. 24494 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:32:05,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:32:05,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647719411] [2022-03-04 00:32:05,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647719411] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:32:05,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344748430] [2022-03-04 00:32:05,236 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 00:32:05,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:32:05,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:32:05,237 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:32:05,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-04 00:32:05,339 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 00:32:05,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:32:05,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 314 conjunts are in the unsatisfiable core [2022-03-04 00:32:05,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:32:34,366 INFO L134 CoverageAnalysis]: Checked inductivity of 24498 backedges. 0 proven. 24494 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:32:34,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:32:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 24498 backedges. 1 proven. 24493 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:32:48,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344748430] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:32:48,229 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:32:48,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [159, 152, 157] total 353 [2022-03-04 00:32:48,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833917591] [2022-03-04 00:32:48,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:32:48,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 354 states [2022-03-04 00:32:48,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:32:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 354 interpolants. [2022-03-04 00:32:48,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=927, Invalid=124035, Unknown=0, NotChecked=0, Total=124962 [2022-03-04 00:32:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:32:48,234 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:32:48,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 354 states, 354 states have (on average 2.6073446327683616) internal successors, (923), 353 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:32:48,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:32:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:32:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:32:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:32:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:32:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:32:48,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:33:05,909 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1467 transitions and produced 1073 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:33:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:33:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:33:05,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-04 00:33:06,110 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 [2022-03-04 00:33:06,110 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:33:06,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:33:06,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1321970026, now seen corresponding path program 17 times [2022-03-04 00:33:06,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:33:06,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513041764] [2022-03-04 00:33:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:33:06,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:33:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:33:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24882 backedges. 11797 proven. 2208 refuted. 0 times theorem prover too weak. 10877 trivial. 0 not checked. [2022-03-04 00:33:06,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:33:06,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513041764] [2022-03-04 00:33:06,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513041764] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:33:06,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673333145] [2022-03-04 00:33:06,860 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 00:33:06,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:33:06,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:33:06,861 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:33:06,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-04 00:33:07,008 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 90 check-sat command(s) [2022-03-04 00:33:07,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:33:07,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 46 conjunts are in the unsatisfiable core [2022-03-04 00:33:07,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:33:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 24882 backedges. 11924 proven. 2081 refuted. 0 times theorem prover too weak. 10877 trivial. 0 not checked. [2022-03-04 00:33:08,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:33:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 24882 backedges. 11860 proven. 2145 refuted. 0 times theorem prover too weak. 10877 trivial. 0 not checked. [2022-03-04 00:33:08,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673333145] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:33:08,934 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:33:08,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47, 47] total 93 [2022-03-04 00:33:08,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003212470] [2022-03-04 00:33:08,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:33:08,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-03-04 00:33:08,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:33:08,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-03-04 00:33:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1638, Invalid=6918, Unknown=0, NotChecked=0, Total=8556 [2022-03-04 00:33:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:33:08,937 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:33:08,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 3.193548387096774) internal successors, (297), 93 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:33:08,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:33:08,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:33:08,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:33:08,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:33:08,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:33:10,235 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1911 transitions and produced 1308 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:33:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:33:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:33:10,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-03-04 00:33:10,438 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 [2022-03-04 00:33:10,438 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:33:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:33:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1240431540, now seen corresponding path program 18 times [2022-03-04 00:33:10,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:33:10,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071557157] [2022-03-04 00:33:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:33:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:33:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:33:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 26847 backedges. 0 proven. 26843 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:33:22,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:33:22,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071557157] [2022-03-04 00:33:22,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071557157] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:33:22,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575474705] [2022-03-04 00:33:22,638 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 00:33:22,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:33:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:33:22,640 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:33:22,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-04 00:33:22,826 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 94 check-sat command(s) [2022-03-04 00:33:22,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:33:22,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 328 conjunts are in the unsatisfiable core [2022-03-04 00:33:22,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:33:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 26847 backedges. 1 proven. 26843 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:33:54,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:34:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 26847 backedges. 1 proven. 26843 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:34:10,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575474705] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:34:10,369 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:34:10,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [166, 160, 164] total 370 [2022-03-04 00:34:10,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016051868] [2022-03-04 00:34:10,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:34:10,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 371 states [2022-03-04 00:34:10,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:34:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 371 interpolants. [2022-03-04 00:34:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=902, Invalid=136368, Unknown=0, NotChecked=0, Total=137270 [2022-03-04 00:34:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:34:10,380 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:34:10,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 371 states, 371 states have (on average 2.5902964959568733) internal successors, (961), 370 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:34:10,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:10,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:34:10,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:34:32,070 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1564 transitions and produced 1133 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:34:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:34:32,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-04 00:34:32,271 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 [2022-03-04 00:34:32,272 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:34:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:34:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1476512766, now seen corresponding path program 19 times [2022-03-04 00:34:32,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:34:32,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674028139] [2022-03-04 00:34:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:34:32,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:34:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:34:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 27249 backedges. 12918 proven. 2412 refuted. 0 times theorem prover too weak. 11919 trivial. 0 not checked. [2022-03-04 00:34:33,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:34:33,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674028139] [2022-03-04 00:34:33,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674028139] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:34:33,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808727681] [2022-03-04 00:34:33,075 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 00:34:33,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:34:33,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:34:33,076 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:34:33,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-04 00:34:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:34:33,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-04 00:34:33,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:34:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 27249 backedges. 13051 proven. 2279 refuted. 0 times theorem prover too weak. 11919 trivial. 0 not checked. [2022-03-04 00:34:34,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:34:35,110 INFO L134 CoverageAnalysis]: Checked inductivity of 27249 backedges. 12984 proven. 2346 refuted. 0 times theorem prover too weak. 11919 trivial. 0 not checked. [2022-03-04 00:34:35,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808727681] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:34:35,111 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:34:35,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 97 [2022-03-04 00:34:35,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359699336] [2022-03-04 00:34:35,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:34:35,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-03-04 00:34:35,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:34:35,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-03-04 00:34:35,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1781, Invalid=7531, Unknown=0, NotChecked=0, Total=9312 [2022-03-04 00:34:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:34:35,112 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:34:35,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.185567010309278) internal successors, (309), 97 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:34:35,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:34:36,468 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2008 transitions and produced 1368 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:34:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:34:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:34:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:34:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:34:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:34:36,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-03-04 00:34:36,669 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 [2022-03-04 00:34:36,672 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:34:36,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:34:36,672 INFO L85 PathProgramCache]: Analyzing trace with hash 408594972, now seen corresponding path program 20 times [2022-03-04 00:34:36,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:34:36,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696404922] [2022-03-04 00:34:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:34:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:34:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:34:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 29304 backedges. 0 proven. 29300 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:34:49,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:34:49,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696404922] [2022-03-04 00:34:49,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696404922] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:34:49,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591898064] [2022-03-04 00:34:49,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:34:49,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:34:49,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:34:49,668 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:34:49,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-04 00:34:49,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:34:49,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:34:49,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 342 conjunts are in the unsatisfiable core [2022-03-04 00:34:49,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:35:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 29304 backedges. 0 proven. 29300 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:35:23,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:35:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 29304 backedges. 1 proven. 29299 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:35:40,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591898064] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:35:40,010 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:35:40,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [173, 166, 171] total 385 [2022-03-04 00:35:40,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102904395] [2022-03-04 00:35:40,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:35:40,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-03-04 00:35:40,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:35:40,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-03-04 00:35:40,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1009, Invalid=147601, Unknown=0, NotChecked=0, Total=148610 [2022-03-04 00:35:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:35:40,031 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:35:40,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.593264248704663) internal successors, (1001), 385 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:35:40,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:35:40,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:36:01,036 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1587 transitions and produced 1157 states. [2022-03-04 00:36:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:36:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:36:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:36:01,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-04 00:36:01,238 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 [2022-03-04 00:36:01,238 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:36:01,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:36:01,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1863658218, now seen corresponding path program 21 times [2022-03-04 00:36:01,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:36:01,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886095511] [2022-03-04 00:36:01,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:36:01,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:36:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:36:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 29724 backedges. 14090 proven. 2625 refuted. 0 times theorem prover too weak. 13009 trivial. 0 not checked. [2022-03-04 00:36:02,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:36:02,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886095511] [2022-03-04 00:36:02,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886095511] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:36:02,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555462340] [2022-03-04 00:36:02,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:36:02,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:36:02,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:36:02,254 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:36:02,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-04 00:36:02,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 73 check-sat command(s) [2022-03-04 00:36:02,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:36:02,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 00:36:02,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:36:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 29724 backedges. 7409 proven. 9022 refuted. 0 times theorem prover too weak. 13293 trivial. 0 not checked. [2022-03-04 00:36:03,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:36:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 29724 backedges. 803 proven. 15628 refuted. 0 times theorem prover too weak. 13293 trivial. 0 not checked. [2022-03-04 00:36:04,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555462340] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:36:04,591 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:36:04,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51, 51] total 101 [2022-03-04 00:36:04,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972081832] [2022-03-04 00:36:04,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:36:04,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-03-04 00:36:04,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:36:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-03-04 00:36:04,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1930, Invalid=8170, Unknown=0, NotChecked=0, Total=10100 [2022-03-04 00:36:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:36:04,593 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:36:04,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 3.198019801980198) internal successors, (323), 101 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:36:04,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:36:04,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:36:04,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:36:04,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:36:04,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:36:04,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:36:06,020 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2031 transitions and produced 1392 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:36:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:36:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:36:06,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:36:06,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-03-04 00:36:06,236 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 [2022-03-04 00:36:06,236 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:36:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:36:06,237 INFO L85 PathProgramCache]: Analyzing trace with hash -800471500, now seen corresponding path program 22 times [2022-03-04 00:36:06,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:36:06,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204702842] [2022-03-04 00:36:06,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:36:06,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:36:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:36:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 31869 backedges. 0 proven. 31865 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:36:20,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:36:20,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204702842] [2022-03-04 00:36:20,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204702842] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:36:20,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550450625] [2022-03-04 00:36:20,108 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 00:36:20,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:36:20,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:36:20,109 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:36:20,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-03-04 00:36:20,219 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 00:36:20,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:36:20,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 356 conjunts are in the unsatisfiable core [2022-03-04 00:36:20,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:36:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 31869 backedges. 0 proven. 31865 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:36:56,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:37:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 31869 backedges. 1 proven. 31864 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:37:14,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550450625] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:37:14,382 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:37:14,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [180, 173, 178] total 401 [2022-03-04 00:37:14,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280293657] [2022-03-04 00:37:14,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:37:14,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2022-03-04 00:37:14,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:37:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2022-03-04 00:37:14,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1050, Invalid=160152, Unknown=0, NotChecked=0, Total=161202 [2022-03-04 00:37:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:37:14,390 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:37:14,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 402 states, 402 states have (on average 2.5870646766169156) internal successors, (1040), 401 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:14,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:14,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:14,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:37:36,801 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1647 transitions and produced 1199 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:36,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-03-04 00:37:37,004 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 [2022-03-04 00:37:37,005 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:37:37,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:37:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1551822722, now seen corresponding path program 23 times [2022-03-04 00:37:37,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:37:37,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810539083] [2022-03-04 00:37:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:37:37,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:37:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:37:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 32307 backedges. 15313 proven. 2847 refuted. 0 times theorem prover too weak. 14147 trivial. 0 not checked. [2022-03-04 00:37:37,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:37:37,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810539083] [2022-03-04 00:37:37,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810539083] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:37:37,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633622490] [2022-03-04 00:37:37,926 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 00:37:37,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:37:37,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:37:37,927 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:37:37,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-03-04 00:37:38,103 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 102 check-sat command(s) [2022-03-04 00:37:38,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:37:38,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 52 conjunts are in the unsatisfiable core [2022-03-04 00:37:38,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:37:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 32307 backedges. 15458 proven. 2702 refuted. 0 times theorem prover too weak. 14147 trivial. 0 not checked. [2022-03-04 00:37:39,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:37:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 32307 backedges. 15385 proven. 2775 refuted. 0 times theorem prover too weak. 14147 trivial. 0 not checked. [2022-03-04 00:37:40,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633622490] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:37:40,226 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:37:40,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53, 53] total 105 [2022-03-04 00:37:40,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50238200] [2022-03-04 00:37:40,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:37:40,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-03-04 00:37:40,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:37:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-03-04 00:37:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2085, Invalid=8835, Unknown=0, NotChecked=0, Total=10920 [2022-03-04 00:37:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:37:40,228 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:37:40,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 3.1714285714285713) internal successors, (333), 105 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 00:37:40,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:40,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:37:40,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:40,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:40,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:40,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:37:41,799 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2091 transitions and produced 1434 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 00:37:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-04 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-04 00:37:41,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-03-04 00:37:42,000 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 [2022-03-04 00:37:42,001 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:37:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:37:42,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2098595172, now seen corresponding path program 24 times [2022-03-04 00:37:42,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:37:42,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842054879] [2022-03-04 00:37:42,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:37:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:37:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:37:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 34542 backedges. 0 proven. 34538 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 00:37:56,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:37:56,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842054879] [2022-03-04 00:37:56,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842054879] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:37:56,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318171873] [2022-03-04 00:37:56,799 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 00:37:56,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:37:56,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:37:56,801 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:37:56,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-03-04 00:37:57,012 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 106 check-sat command(s) [2022-03-04 00:37:57,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:37:57,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 370 conjunts are in the unsatisfiable core [2022-03-04 00:37:57,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:38:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 34542 backedges. 1 proven. 34538 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 00:38:36,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-04 00:38:49,429 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 00:38:49,429 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 00:38:49,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-03-04 00:38:49,470 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 00:38:49,470 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 00:38:49,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-03-04 00:38:49,630 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 505 with TraceHistMax 150,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 401 known predicates. [2022-03-04 00:38:49,631 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 00:38:49,631 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 00:38:49,635 INFO L732 BasicCegarLoop]: Path program histogram: [24] [2022-03-04 00:38:49,637 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:38:49,637 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:38:49,639 INFO L202 PluginConnector]: Adding new model clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:38:49 BasicIcfg [2022-03-04 00:38:49,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:38:49,639 INFO L158 Benchmark]: Toolchain (without parser) took 728595.72ms. Allocated memory was 205.5MB in the beginning and 648.0MB in the end (delta: 442.5MB). Free memory was 164.6MB in the beginning and 101.4MB in the end (delta: 63.3MB). Peak memory consumption was 507.3MB. Max. memory is 8.0GB. [2022-03-04 00:38:49,639 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 205.5MB. Free memory is still 165.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:38:49,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.17ms. Allocated memory is still 205.5MB. Free memory was 164.5MB in the beginning and 163.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:38:49,640 INFO L158 Benchmark]: Boogie Preprocessor took 12.79ms. Allocated memory is still 205.5MB. Free memory was 163.0MB in the beginning and 162.1MB in the end (delta: 908.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:38:49,640 INFO L158 Benchmark]: RCFGBuilder took 183.73ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 153.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-04 00:38:49,640 INFO L158 Benchmark]: TraceAbstraction took 728371.65ms. Allocated memory was 205.5MB in the beginning and 648.0MB in the end (delta: 442.5MB). Free memory was 153.0MB in the beginning and 101.4MB in the end (delta: 51.6MB). Peak memory consumption was 494.8MB. Max. memory is 8.0GB. [2022-03-04 00:38:49,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 205.5MB. Free memory is still 165.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.17ms. Allocated memory is still 205.5MB. Free memory was 164.5MB in the beginning and 163.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.79ms. Allocated memory is still 205.5MB. Free memory was 163.0MB in the beginning and 162.1MB in the end (delta: 908.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.73ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 153.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 728371.65ms. Allocated memory was 205.5MB in the beginning and 648.0MB in the end (delta: 442.5MB). Free memory was 153.0MB in the beginning and 101.4MB in the end (delta: 51.6MB). Peak memory consumption was 494.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 505 with TraceHistMax 150,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 401 known predicates. - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 505 with TraceHistMax 150,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 401 known predicates. - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 505 with TraceHistMax 150,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 401 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 39 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 728.3s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 169.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1428, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 482.4s InterpolantComputationTime, 16494 NumberOfCodeBlocks, 16034 NumberOfCodeBlocksAsserted, 831 NumberOfCheckSat, 24672 ConstructedInterpolants, 0 QuantifiedInterpolants, 245830 SizeOfPredicates, 110 NumberOfNonLiveVariables, 13072 ConjunctsInSsa, 3235 ConjunctsInUnsatCore, 69 InterpolantComputations, 0 PerfectInterpolantSequences, 563634/1280238 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown