/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 17:51:01,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 17:51:01,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 17:51:01,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 17:51:01,090 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-FA-NoLbe.epf [2022-03-01 17:51:01,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 17:51:01,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 17:51:01,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 17:51:01,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 17:51:01,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 17:51:01,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 17:51:01,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 17:51:01,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 17:51:01,125 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 17:51:01,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 17:51:01,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 17:51:01,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 17:51:01,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 17:51:01,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 17:51:01,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 17:51:01,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 17:51:01,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 17:51:01,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 17:51:01,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 17:51:01,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:51:01,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 17:51:01,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 17:51:01,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 17:51:01,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 17:51:01,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 17:51:01,130 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 17:51:01,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 17:51:01,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 17:51:01,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 17:51:01,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 17:51:01,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 17:51:01,350 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 17:51:01,353 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 17:51:01,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl [2022-03-01 17:51:01,354 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl' [2022-03-01 17:51:01,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 17:51:01,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 17:51:01,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 17:51:01,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 17:51:01,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 17:51:01,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,412 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 17:51:01,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 17:51:01,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 17:51:01,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 17:51:01,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 17:51:01,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 17:51:01,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 17:51:01,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 17:51:01,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 17:51:01,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/1) ... [2022-03-01 17:51:01,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:51:01,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 17:51:01,469 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) [2022-03-01 17:51:01,474 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 [2022-03-01 17:51:01,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 17:51:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 17:51:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 17:51:01,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 17:51:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 17:51:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 17:51:01,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 17:51:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 17:51:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 17:51:01,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-01 17:51:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 17:51:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 17:51:01,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-01 17:51:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 17:51:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 17:51:01,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-03-01 17:51:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-01 17:51:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-01 17:51:01,514 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-03-01 17:51:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-01 17:51:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-01 17:51:01,515 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 17:51:01,560 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 17:51:01,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 17:51:01,689 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 17:51:01,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 17:51:01,706 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 17:51:01,708 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:51:01 BoogieIcfgContainer [2022-03-01 17:51:01,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 17:51:01,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 17:51:01,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 17:51:01,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 17:51:01,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:51:01" (1/2) ... [2022-03-01 17:51:01,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b310b3d and model type ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 05:51:01, skipping insertion in model container [2022-03-01 17:51:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:51:01" (2/2) ... [2022-03-01 17:51:01,729 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-6.wvr.bpl [2022-03-01 17:51:01,733 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 17:51:01,733 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 17:51:01,733 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 17:51:01,733 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 17:51:01,841 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-03-01 17:51:01,883 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 17:51:01,889 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 17:51:01,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-01 17:51:01,897 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 54 transitions, 156 flow [2022-03-01 17:51:04,660 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74652 states, 74651 states have (on average 5.020776680821422) internal successors, (374806), 74651 states have internal predecessors, (374806), 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) [2022-03-01 17:51:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 74652 states, 74651 states have (on average 5.020776680821422) internal successors, (374806), 74651 states have internal predecessors, (374806), 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) [2022-03-01 17:51:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:51:05,511 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:05,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:05,512 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:51:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash 450303750, now seen corresponding path program 1 times [2022-03-01 17:51:05,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:05,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848442104] [2022-03-01 17:51:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:05,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:05,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:05,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848442104] [2022-03-01 17:51:05,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848442104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:05,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:05,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 17:51:05,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499635257] [2022-03-01 17:51:05,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:05,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 17:51:05,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:05,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 17:51:05,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 17:51:05,939 INFO L87 Difference]: Start difference. First operand has 74652 states, 74651 states have (on average 5.020776680821422) internal successors, (374806), 74651 states have internal predecessors, (374806), 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) Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:51:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:09,653 INFO L93 Difference]: Finished difference Result 201088 states and 980337 transitions. [2022-03-01 17:51:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 17:51:09,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:51:09,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:11,500 INFO L225 Difference]: With dead ends: 201088 [2022-03-01 17:51:11,500 INFO L226 Difference]: Without dead ends: 201088 [2022-03-01 17:51:11,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:51:11,505 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 87 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:11,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 124 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:51:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201088 states. [2022-03-01 17:51:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201088 to 100373. [2022-03-01 17:51:18,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100373 states, 100372 states have (on average 4.930000398517515) internal successors, (494834), 100372 states have internal predecessors, (494834), 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) [2022-03-01 17:51:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100373 states to 100373 states and 494834 transitions. [2022-03-01 17:51:19,959 INFO L78 Accepts]: Start accepts. Automaton has 100373 states and 494834 transitions. Word has length 46 [2022-03-01 17:51:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:19,959 INFO L470 AbstractCegarLoop]: Abstraction has 100373 states and 494834 transitions. [2022-03-01 17:51:19,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:51:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 100373 states and 494834 transitions. [2022-03-01 17:51:20,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:51:20,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:20,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:20,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 17:51:20,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:51:20,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:20,786 INFO L85 PathProgramCache]: Analyzing trace with hash 717350054, now seen corresponding path program 2 times [2022-03-01 17:51:20,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:20,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430615540] [2022-03-01 17:51:20,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:20,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:20,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:20,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430615540] [2022-03-01 17:51:20,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430615540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:20,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:20,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 17:51:20,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107420181] [2022-03-01 17:51:20,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:20,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 17:51:20,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 17:51:20,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:51:20,893 INFO L87 Difference]: Start difference. First operand 100373 states and 494834 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:51:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:24,000 INFO L93 Difference]: Finished difference Result 237543 states and 1143295 transitions. [2022-03-01 17:51:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 17:51:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:51:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:26,748 INFO L225 Difference]: With dead ends: 237543 [2022-03-01 17:51:26,748 INFO L226 Difference]: Without dead ends: 237543 [2022-03-01 17:51:26,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:51:26,750 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 128 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:26,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 172 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:51:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237543 states. [2022-03-01 17:51:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237543 to 124242. [2022-03-01 17:51:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124242 states, 124241 states have (on average 4.865503336257757) internal successors, (604495), 124241 states have internal predecessors, (604495), 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) [2022-03-01 17:51:35,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124242 states to 124242 states and 604495 transitions. [2022-03-01 17:51:35,642 INFO L78 Accepts]: Start accepts. Automaton has 124242 states and 604495 transitions. Word has length 46 [2022-03-01 17:51:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:35,643 INFO L470 AbstractCegarLoop]: Abstraction has 124242 states and 604495 transitions. [2022-03-01 17:51:35,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:51:35,643 INFO L276 IsEmpty]: Start isEmpty. Operand 124242 states and 604495 transitions. [2022-03-01 17:51:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:51:36,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:36,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:36,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 17:51:36,120 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:51:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1706198856, now seen corresponding path program 3 times [2022-03-01 17:51:36,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:36,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740350837] [2022-03-01 17:51:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:36,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:36,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:36,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740350837] [2022-03-01 17:51:36,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740350837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:36,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:36,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:51:36,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209558898] [2022-03-01 17:51:36,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:36,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:51:36,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:51:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:51:36,205 INFO L87 Difference]: Start difference. First operand 124242 states and 604495 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:51:39,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:39,602 INFO L93 Difference]: Finished difference Result 232977 states and 1116666 transitions. [2022-03-01 17:51:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:51:39,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:51:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:43,321 INFO L225 Difference]: With dead ends: 232977 [2022-03-01 17:51:43,322 INFO L226 Difference]: Without dead ends: 232977 [2022-03-01 17:51:43,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:51:43,330 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 151 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:43,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 232 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:51:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232977 states. [2022-03-01 17:51:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232977 to 140760. [2022-03-01 17:51:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140760 states, 140759 states have (on average 4.84867752683665) internal successors, (682495), 140759 states have internal predecessors, (682495), 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) [2022-03-01 17:51:53,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140760 states to 140760 states and 682495 transitions. [2022-03-01 17:51:53,348 INFO L78 Accepts]: Start accepts. Automaton has 140760 states and 682495 transitions. Word has length 46 [2022-03-01 17:51:53,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:53,349 INFO L470 AbstractCegarLoop]: Abstraction has 140760 states and 682495 transitions. [2022-03-01 17:51:53,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:51:53,350 INFO L276 IsEmpty]: Start isEmpty. Operand 140760 states and 682495 transitions. [2022-03-01 17:51:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:51:53,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:53,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:53,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 17:51:53,861 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:51:53,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:53,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1401464350, now seen corresponding path program 4 times [2022-03-01 17:51:53,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:53,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436836238] [2022-03-01 17:51:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:53,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:53,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436836238] [2022-03-01 17:51:53,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436836238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:53,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:53,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 17:51:53,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600427677] [2022-03-01 17:51:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:53,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 17:51:53,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:53,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 17:51:53,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:51:53,957 INFO L87 Difference]: Start difference. First operand 140760 states and 682495 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:51:57,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:57,068 INFO L93 Difference]: Finished difference Result 207060 states and 995129 transitions. [2022-03-01 17:51:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:51:57,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:51:57,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:58,989 INFO L225 Difference]: With dead ends: 207060 [2022-03-01 17:51:58,989 INFO L226 Difference]: Without dead ends: 207060 [2022-03-01 17:51:58,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:51:59,004 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:59,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 288 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:51:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207060 states. [2022-03-01 17:52:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207060 to 146091. [2022-03-01 17:52:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146091 states, 146090 states have (on average 4.832856458347594) internal successors, (706032), 146090 states have internal predecessors, (706032), 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) [2022-03-01 17:52:07,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146091 states to 146091 states and 706032 transitions. [2022-03-01 17:52:07,996 INFO L78 Accepts]: Start accepts. Automaton has 146091 states and 706032 transitions. Word has length 46 [2022-03-01 17:52:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:07,997 INFO L470 AbstractCegarLoop]: Abstraction has 146091 states and 706032 transitions. [2022-03-01 17:52:07,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:52:07,997 INFO L276 IsEmpty]: Start isEmpty. Operand 146091 states and 706032 transitions. [2022-03-01 17:52:09,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:52:09,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:09,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:09,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 17:52:09,070 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:52:09,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:09,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1511901302, now seen corresponding path program 5 times [2022-03-01 17:52:09,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:09,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384306940] [2022-03-01 17:52:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:09,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:09,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:09,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384306940] [2022-03-01 17:52:09,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384306940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:09,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:09,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:52:09,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576878849] [2022-03-01 17:52:09,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:09,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:52:09,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:09,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:52:09,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:52:09,260 INFO L87 Difference]: Start difference. First operand 146091 states and 706032 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:52:13,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:13,955 INFO L93 Difference]: Finished difference Result 271147 states and 1272171 transitions. [2022-03-01 17:52:13,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:52:13,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:52:13,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:17,237 INFO L225 Difference]: With dead ends: 271147 [2022-03-01 17:52:17,237 INFO L226 Difference]: Without dead ends: 271147 [2022-03-01 17:52:17,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:52:17,238 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 163 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:17,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 231 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:52:18,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271147 states. [2022-03-01 17:52:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271147 to 164447. [2022-03-01 17:52:26,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164447 states, 164446 states have (on average 4.712294613429332) internal successors, (774918), 164446 states have internal predecessors, (774918), 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) [2022-03-01 17:52:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164447 states to 164447 states and 774918 transitions. [2022-03-01 17:52:29,309 INFO L78 Accepts]: Start accepts. Automaton has 164447 states and 774918 transitions. Word has length 46 [2022-03-01 17:52:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:29,310 INFO L470 AbstractCegarLoop]: Abstraction has 164447 states and 774918 transitions. [2022-03-01 17:52:29,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:52:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 164447 states and 774918 transitions. [2022-03-01 17:52:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:52:30,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:30,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:30,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 17:52:30,713 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:52:30,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:30,714 INFO L85 PathProgramCache]: Analyzing trace with hash -388722550, now seen corresponding path program 6 times [2022-03-01 17:52:30,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:30,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406857522] [2022-03-01 17:52:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:30,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:30,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406857522] [2022-03-01 17:52:30,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406857522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:30,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:30,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 17:52:30,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235666814] [2022-03-01 17:52:30,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:30,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 17:52:30,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:30,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 17:52:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:52:30,845 INFO L87 Difference]: Start difference. First operand 164447 states and 774918 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:52:35,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:35,556 INFO L93 Difference]: Finished difference Result 281393 states and 1303094 transitions. [2022-03-01 17:52:35,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:52:35,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:52:35,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:38,362 INFO L225 Difference]: With dead ends: 281393 [2022-03-01 17:52:38,362 INFO L226 Difference]: Without dead ends: 281393 [2022-03-01 17:52:38,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-01 17:52:38,363 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:38,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 291 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 17:52:39,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281393 states. [2022-03-01 17:52:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281393 to 185569. [2022-03-01 17:52:50,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185569 states, 185568 states have (on average 4.64495494912916) internal successors, (861955), 185568 states have internal predecessors, (861955), 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) [2022-03-01 17:52:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185569 states to 185569 states and 861955 transitions. [2022-03-01 17:52:52,227 INFO L78 Accepts]: Start accepts. Automaton has 185569 states and 861955 transitions. Word has length 46 [2022-03-01 17:52:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:52,227 INFO L470 AbstractCegarLoop]: Abstraction has 185569 states and 861955 transitions. [2022-03-01 17:52:52,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:52:52,227 INFO L276 IsEmpty]: Start isEmpty. Operand 185569 states and 861955 transitions. [2022-03-01 17:52:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:52:52,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:52,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:52,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 17:52:52,898 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:52:52,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:52,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1086431228, now seen corresponding path program 7 times [2022-03-01 17:52:52,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:52,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530675941] [2022-03-01 17:52:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:52,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:52,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:52,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530675941] [2022-03-01 17:52:52,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530675941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:52,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:52,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 17:52:52,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194520746] [2022-03-01 17:52:52,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:52,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 17:52:52,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 17:52:53,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-03-01 17:52:53,000 INFO L87 Difference]: Start difference. First operand 185569 states and 861955 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:52:56,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:56,901 INFO L93 Difference]: Finished difference Result 292927 states and 1358658 transitions. [2022-03-01 17:52:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 17:52:56,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:52:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:59,452 INFO L225 Difference]: With dead ends: 292927 [2022-03-01 17:52:59,453 INFO L226 Difference]: Without dead ends: 196405 [2022-03-01 17:52:59,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-03-01 17:52:59,454 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 95 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:59,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 82 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:53:00,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196405 states. [2022-03-01 17:53:08,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196405 to 196405. [2022-03-01 17:53:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196405 states, 196404 states have (on average 4.545100914441661) internal successors, (892676), 196404 states have internal predecessors, (892676), 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) [2022-03-01 17:53:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196405 states to 196405 states and 892676 transitions. [2022-03-01 17:53:10,762 INFO L78 Accepts]: Start accepts. Automaton has 196405 states and 892676 transitions. Word has length 46 [2022-03-01 17:53:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:10,762 INFO L470 AbstractCegarLoop]: Abstraction has 196405 states and 892676 transitions. [2022-03-01 17:53:10,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:53:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 196405 states and 892676 transitions. [2022-03-01 17:53:11,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:53:11,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:11,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:11,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 17:53:11,790 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:53:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1313539938, now seen corresponding path program 8 times [2022-03-01 17:53:11,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:11,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110298107] [2022-03-01 17:53:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:11,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:11,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110298107] [2022-03-01 17:53:11,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110298107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:11,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:11,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:53:11,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773824460] [2022-03-01 17:53:11,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:11,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:53:11,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:11,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:53:11,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:53:11,844 INFO L87 Difference]: Start difference. First operand 196405 states and 892676 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:53:15,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:15,795 INFO L93 Difference]: Finished difference Result 311447 states and 1399231 transitions. [2022-03-01 17:53:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:53:15,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:53:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:20,510 INFO L225 Difference]: With dead ends: 311447 [2022-03-01 17:53:20,510 INFO L226 Difference]: Without dead ends: 311255 [2022-03-01 17:53:20,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:53:20,527 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 152 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:20,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 241 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:53:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311255 states. [2022-03-01 17:53:31,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311255 to 207417. [2022-03-01 17:53:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207417 states, 207416 states have (on average 4.523006903999692) internal successors, (938144), 207416 states have internal predecessors, (938144), 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) [2022-03-01 17:53:33,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207417 states to 207417 states and 938144 transitions. [2022-03-01 17:53:33,714 INFO L78 Accepts]: Start accepts. Automaton has 207417 states and 938144 transitions. Word has length 46 [2022-03-01 17:53:33,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:33,714 INFO L470 AbstractCegarLoop]: Abstraction has 207417 states and 938144 transitions. [2022-03-01 17:53:33,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:53:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 207417 states and 938144 transitions. [2022-03-01 17:53:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:53:34,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:34,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:34,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 17:53:34,803 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:53:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash -196650254, now seen corresponding path program 9 times [2022-03-01 17:53:34,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:34,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303876173] [2022-03-01 17:53:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:34,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:34,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:34,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303876173] [2022-03-01 17:53:34,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303876173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:34,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:34,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 17:53:34,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573868332] [2022-03-01 17:53:34,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:34,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 17:53:34,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:34,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 17:53:34,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:53:34,857 INFO L87 Difference]: Start difference. First operand 207417 states and 938144 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:53:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:39,351 INFO L93 Difference]: Finished difference Result 334168 states and 1492333 transitions. [2022-03-01 17:53:39,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 17:53:39,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:53:39,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:44,095 INFO L225 Difference]: With dead ends: 334168 [2022-03-01 17:53:44,096 INFO L226 Difference]: Without dead ends: 333766 [2022-03-01 17:53:44,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:53:44,103 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 126 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:44,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 177 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:53:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333766 states. [2022-03-01 17:53:55,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333766 to 214179. [2022-03-01 17:53:55,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214179 states, 214178 states have (on average 4.497025838321396) internal successors, (963164), 214178 states have internal predecessors, (963164), 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) [2022-03-01 17:53:57,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214179 states to 214179 states and 963164 transitions. [2022-03-01 17:53:57,594 INFO L78 Accepts]: Start accepts. Automaton has 214179 states and 963164 transitions. Word has length 46 [2022-03-01 17:53:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:57,594 INFO L470 AbstractCegarLoop]: Abstraction has 214179 states and 963164 transitions. [2022-03-01 17:53:57,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:53:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 214179 states and 963164 transitions. [2022-03-01 17:53:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:53:58,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:58,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:58,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 17:53:58,737 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:53:58,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:58,738 INFO L85 PathProgramCache]: Analyzing trace with hash 565777960, now seen corresponding path program 10 times [2022-03-01 17:53:58,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:58,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973325338] [2022-03-01 17:53:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:58,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:58,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973325338] [2022-03-01 17:53:58,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973325338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:58,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:58,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 17:53:58,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993623018] [2022-03-01 17:53:58,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:58,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 17:53:58,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 17:53:58,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:53:58,808 INFO L87 Difference]: Start difference. First operand 214179 states and 963164 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:54:04,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:54:04,311 INFO L93 Difference]: Finished difference Result 354188 states and 1551857 transitions. [2022-03-01 17:54:04,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:54:04,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:54:04,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:54:08,436 INFO L225 Difference]: With dead ends: 354188 [2022-03-01 17:54:08,437 INFO L226 Difference]: Without dead ends: 353624 [2022-03-01 17:54:08,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-01 17:54:08,437 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 200 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:54:08,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 259 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:54:09,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353624 states. [2022-03-01 17:54:19,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353624 to 224674. [2022-03-01 17:54:20,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224674 states, 224673 states have (on average 4.434026340503754) internal successors, (996206), 224673 states have internal predecessors, (996206), 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) [2022-03-01 17:54:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224674 states to 224674 states and 996206 transitions. [2022-03-01 17:54:22,086 INFO L78 Accepts]: Start accepts. Automaton has 224674 states and 996206 transitions. Word has length 46 [2022-03-01 17:54:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:54:22,086 INFO L470 AbstractCegarLoop]: Abstraction has 224674 states and 996206 transitions. [2022-03-01 17:54:22,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:54:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 224674 states and 996206 transitions. [2022-03-01 17:54:23,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:54:23,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:54:23,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:54:23,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 17:54:23,247 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:54:23,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:54:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 625190246, now seen corresponding path program 11 times [2022-03-01 17:54:23,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:54:23,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089178178] [2022-03-01 17:54:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:54:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:54:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:54:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:54:23,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:54:23,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089178178] [2022-03-01 17:54:23,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089178178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:54:23,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:54:23,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 17:54:23,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560122040] [2022-03-01 17:54:23,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:54:23,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 17:54:23,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:54:23,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 17:54:23,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:54:23,333 INFO L87 Difference]: Start difference. First operand 224674 states and 996206 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:54:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:54:27,998 INFO L93 Difference]: Finished difference Result 313135 states and 1375062 transitions. [2022-03-01 17:54:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:54:27,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:54:27,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:54:31,456 INFO L225 Difference]: With dead ends: 313135 [2022-03-01 17:54:31,456 INFO L226 Difference]: Without dead ends: 313027 [2022-03-01 17:54:31,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:54:31,457 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 188 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:54:31,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 292 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:54:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313027 states. [2022-03-01 17:54:41,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313027 to 222693. [2022-03-01 17:54:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222693 states, 222692 states have (on average 4.4333384225746775) internal successors, (987269), 222692 states have internal predecessors, (987269), 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) [2022-03-01 17:54:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222693 states to 222693 states and 987269 transitions. [2022-03-01 17:54:44,382 INFO L78 Accepts]: Start accepts. Automaton has 222693 states and 987269 transitions. Word has length 46 [2022-03-01 17:54:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:54:44,382 INFO L470 AbstractCegarLoop]: Abstraction has 222693 states and 987269 transitions. [2022-03-01 17:54:44,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:54:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 222693 states and 987269 transitions. [2022-03-01 17:54:45,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:54:45,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:54:45,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:54:45,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 17:54:45,667 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:54:45,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:54:45,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1961930376, now seen corresponding path program 12 times [2022-03-01 17:54:45,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:54:45,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752392414] [2022-03-01 17:54:45,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:54:45,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:54:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:54:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:54:45,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:54:45,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752392414] [2022-03-01 17:54:45,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752392414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:54:45,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:54:45,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:54:45,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434740850] [2022-03-01 17:54:45,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:54:45,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:54:45,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:54:45,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:54:45,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:54:45,758 INFO L87 Difference]: Start difference. First operand 222693 states and 987269 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2022-03-01 17:54:50,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:54:50,763 INFO L93 Difference]: Finished difference Result 317016 states and 1385687 transitions. [2022-03-01 17:54:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 17:54:50,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:54:50,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:54:54,751 INFO L225 Difference]: With dead ends: 317016 [2022-03-01 17:54:54,751 INFO L226 Difference]: Without dead ends: 316890 [2022-03-01 17:54:54,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-01 17:54:54,752 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 207 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:54:54,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 316 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:54:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316890 states. [2022-03-01 17:55:05,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316890 to 230772. [2022-03-01 17:55:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230772 states, 230771 states have (on average 4.403451906868714) internal successors, (1016189), 230771 states have internal predecessors, (1016189), 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) [2022-03-01 17:55:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230772 states to 230772 states and 1016189 transitions. [2022-03-01 17:55:07,563 INFO L78 Accepts]: Start accepts. Automaton has 230772 states and 1016189 transitions. Word has length 46 [2022-03-01 17:55:07,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:55:07,563 INFO L470 AbstractCegarLoop]: Abstraction has 230772 states and 1016189 transitions. [2022-03-01 17:55:07,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2022-03-01 17:55:07,564 INFO L276 IsEmpty]: Start isEmpty. Operand 230772 states and 1016189 transitions. [2022-03-01 17:55:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:55:08,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:55:08,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:55:08,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 17:55:08,737 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:55:08,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:55:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash 316967760, now seen corresponding path program 13 times [2022-03-01 17:55:08,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:55:08,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887030250] [2022-03-01 17:55:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:55:08,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:55:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:55:08,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:55:08,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:55:08,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887030250] [2022-03-01 17:55:08,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887030250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:55:08,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:55:08,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 17:55:08,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360316280] [2022-03-01 17:55:08,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:55:08,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 17:55:08,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:55:08,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 17:55:08,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 17:55:08,785 INFO L87 Difference]: Start difference. First operand 230772 states and 1016189 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:55:14,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:55:14,985 INFO L93 Difference]: Finished difference Result 408478 states and 1765876 transitions. [2022-03-01 17:55:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 17:55:14,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:55:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:55:19,397 INFO L225 Difference]: With dead ends: 408478 [2022-03-01 17:55:19,397 INFO L226 Difference]: Without dead ends: 407788 [2022-03-01 17:55:19,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:55:19,398 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 80 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:55:19,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 116 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:55:20,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407788 states. [2022-03-01 17:55:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407788 to 229608. [2022-03-01 17:55:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229608 states, 229607 states have (on average 4.399726489174982) internal successors, (1010208), 229607 states have internal predecessors, (1010208), 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) [2022-03-01 17:55:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229608 states to 229608 states and 1010208 transitions. [2022-03-01 17:55:34,026 INFO L78 Accepts]: Start accepts. Automaton has 229608 states and 1010208 transitions. Word has length 46 [2022-03-01 17:55:34,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:55:34,027 INFO L470 AbstractCegarLoop]: Abstraction has 229608 states and 1010208 transitions. [2022-03-01 17:55:34,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:55:34,027 INFO L276 IsEmpty]: Start isEmpty. Operand 229608 states and 1010208 transitions. [2022-03-01 17:55:35,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:55:35,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:55:35,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:55:35,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 17:55:35,813 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:55:35,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:55:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash 256407430, now seen corresponding path program 14 times [2022-03-01 17:55:35,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:55:35,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991116116] [2022-03-01 17:55:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:55:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:55:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:55:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:55:35,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:55:35,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991116116] [2022-03-01 17:55:35,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991116116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:55:35,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:55:35,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 17:55:35,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102801028] [2022-03-01 17:55:35,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:55:35,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 17:55:35,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:55:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 17:55:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 17:55:35,907 INFO L87 Difference]: Start difference. First operand 229608 states and 1010208 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:55:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:55:41,957 INFO L93 Difference]: Finished difference Result 402139 states and 1737491 transitions. [2022-03-01 17:55:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 17:55:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:55:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:55:45,454 INFO L225 Difference]: With dead ends: 402139 [2022-03-01 17:55:45,455 INFO L226 Difference]: Without dead ends: 401305 [2022-03-01 17:55:45,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:55:45,455 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 82 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:55:45,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 116 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:55:46,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401305 states. [2022-03-01 17:55:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401305 to 225477. [2022-03-01 17:55:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225477 states, 225476 states have (on average 4.391088186769323) internal successors, (990085), 225476 states have internal predecessors, (990085), 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) [2022-03-01 17:56:00,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225477 states to 225477 states and 990085 transitions. [2022-03-01 17:56:00,003 INFO L78 Accepts]: Start accepts. Automaton has 225477 states and 990085 transitions. Word has length 46 [2022-03-01 17:56:00,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:56:00,004 INFO L470 AbstractCegarLoop]: Abstraction has 225477 states and 990085 transitions. [2022-03-01 17:56:00,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:56:00,004 INFO L276 IsEmpty]: Start isEmpty. Operand 225477 states and 990085 transitions. [2022-03-01 17:56:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:56:01,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:56:01,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:56:01,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 17:56:01,871 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:56:01,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:56:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1603349792, now seen corresponding path program 15 times [2022-03-01 17:56:01,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:56:01,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715370546] [2022-03-01 17:56:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:56:01,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:56:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:56:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:56:01,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:56:01,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715370546] [2022-03-01 17:56:01,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715370546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:56:01,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:56:01,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 17:56:01,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060134568] [2022-03-01 17:56:01,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:56:01,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 17:56:01,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:56:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 17:56:01,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 17:56:01,967 INFO L87 Difference]: Start difference. First operand 225477 states and 990085 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:56:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:56:07,534 INFO L93 Difference]: Finished difference Result 357749 states and 1533942 transitions. [2022-03-01 17:56:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 17:56:07,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:56:07,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:56:10,176 INFO L225 Difference]: With dead ends: 357749 [2022-03-01 17:56:10,176 INFO L226 Difference]: Without dead ends: 357005 [2022-03-01 17:56:10,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:56:10,177 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 74 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:56:10,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 112 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:56:11,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357005 states. [2022-03-01 17:56:20,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357005 to 221600. [2022-03-01 17:56:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221600 states, 221599 states have (on average 4.303606965735405) internal successors, (953675), 221599 states have internal predecessors, (953675), 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) [2022-03-01 17:56:23,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221600 states to 221600 states and 953675 transitions. [2022-03-01 17:56:23,332 INFO L78 Accepts]: Start accepts. Automaton has 221600 states and 953675 transitions. Word has length 46 [2022-03-01 17:56:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:56:23,332 INFO L470 AbstractCegarLoop]: Abstraction has 221600 states and 953675 transitions. [2022-03-01 17:56:23,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-03-01 17:56:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 221600 states and 953675 transitions. [2022-03-01 17:56:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:56:24,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:56:24,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:56:24,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 17:56:24,698 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:56:24,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:56:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1827995230, now seen corresponding path program 16 times [2022-03-01 17:56:24,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:56:24,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038955680] [2022-03-01 17:56:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:56:24,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:56:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:56:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:56:24,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:56:24,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038955680] [2022-03-01 17:56:24,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038955680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:56:24,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:56:24,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 17:56:24,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213411749] [2022-03-01 17:56:24,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:56:24,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 17:56:24,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:56:24,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 17:56:24,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:56:24,812 INFO L87 Difference]: Start difference. First operand 221600 states and 953675 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:56:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:56:29,874 INFO L93 Difference]: Finished difference Result 340498 states and 1448814 transitions. [2022-03-01 17:56:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 17:56:29,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:56:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:56:32,951 INFO L225 Difference]: With dead ends: 340498 [2022-03-01 17:56:32,951 INFO L226 Difference]: Without dead ends: 339658 [2022-03-01 17:56:32,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:56:32,952 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 109 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:56:32,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 168 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:56:34,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339658 states. [2022-03-01 17:56:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339658 to 224124. [2022-03-01 17:56:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224124 states, 224123 states have (on average 4.287208363264814) internal successors, (960862), 224123 states have internal predecessors, (960862), 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) [2022-03-01 17:56:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224124 states to 224124 states and 960862 transitions. [2022-03-01 17:56:46,537 INFO L78 Accepts]: Start accepts. Automaton has 224124 states and 960862 transitions. Word has length 46 [2022-03-01 17:56:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:56:46,537 INFO L470 AbstractCegarLoop]: Abstraction has 224124 states and 960862 transitions. [2022-03-01 17:56:46,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:56:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 224124 states and 960862 transitions. [2022-03-01 17:56:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:56:47,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:56:47,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:56:47,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 17:56:47,674 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:56:47,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:56:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1037886784, now seen corresponding path program 17 times [2022-03-01 17:56:47,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:56:47,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345010853] [2022-03-01 17:56:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:56:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:56:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:56:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:56:47,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:56:47,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345010853] [2022-03-01 17:56:47,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345010853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:56:47,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:56:47,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:56:47,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803079200] [2022-03-01 17:56:47,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:56:47,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:56:47,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:56:47,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:56:47,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:56:47,726 INFO L87 Difference]: Start difference. First operand 224124 states and 960862 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:56:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:56:52,934 INFO L93 Difference]: Finished difference Result 353337 states and 1468711 transitions. [2022-03-01 17:56:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:56:52,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:56:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:56:56,991 INFO L225 Difference]: With dead ends: 353337 [2022-03-01 17:56:56,991 INFO L226 Difference]: Without dead ends: 350799 [2022-03-01 17:56:56,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:56:56,992 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 155 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:56:56,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 207 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:56:57,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350799 states. [2022-03-01 17:57:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350799 to 226951. [2022-03-01 17:57:08,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226951 states, 226950 states have (on average 4.2088213262833225) internal successors, (955192), 226950 states have internal predecessors, (955192), 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) [2022-03-01 17:57:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226951 states to 226951 states and 955192 transitions. [2022-03-01 17:57:10,064 INFO L78 Accepts]: Start accepts. Automaton has 226951 states and 955192 transitions. Word has length 46 [2022-03-01 17:57:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:57:10,064 INFO L470 AbstractCegarLoop]: Abstraction has 226951 states and 955192 transitions. [2022-03-01 17:57:10,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:57:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 226951 states and 955192 transitions. [2022-03-01 17:57:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:57:11,263 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:57:11,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:57:11,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 17:57:11,263 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:57:11,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:57:11,263 INFO L85 PathProgramCache]: Analyzing trace with hash 326907842, now seen corresponding path program 18 times [2022-03-01 17:57:11,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:57:11,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546071579] [2022-03-01 17:57:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:57:11,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:57:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:57:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:57:11,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:57:11,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546071579] [2022-03-01 17:57:11,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546071579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:57:11,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:57:11,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 17:57:11,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045008111] [2022-03-01 17:57:11,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:57:11,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 17:57:11,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:57:11,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 17:57:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 17:57:11,341 INFO L87 Difference]: Start difference. First operand 226951 states and 955192 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:57:15,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:57:15,588 INFO L93 Difference]: Finished difference Result 324950 states and 1350459 transitions. [2022-03-01 17:57:15,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 17:57:15,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:57:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:57:19,666 INFO L225 Difference]: With dead ends: 324950 [2022-03-01 17:57:19,667 INFO L226 Difference]: Without dead ends: 323782 [2022-03-01 17:57:19,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:57:19,667 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 123 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:57:19,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 158 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:57:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323782 states. [2022-03-01 17:57:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323782 to 214689. [2022-03-01 17:57:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214689 states, 214688 states have (on average 4.190970152034581) internal successors, (899751), 214688 states have internal predecessors, (899751), 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) [2022-03-01 17:57:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214689 states to 214689 states and 899751 transitions. [2022-03-01 17:57:31,732 INFO L78 Accepts]: Start accepts. Automaton has 214689 states and 899751 transitions. Word has length 46 [2022-03-01 17:57:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:57:31,732 INFO L470 AbstractCegarLoop]: Abstraction has 214689 states and 899751 transitions. [2022-03-01 17:57:31,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-03-01 17:57:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 214689 states and 899751 transitions. [2022-03-01 17:57:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:57:32,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:57:32,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:57:32,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 17:57:32,808 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:57:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:57:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash 294980832, now seen corresponding path program 19 times [2022-03-01 17:57:32,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:57:32,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657542420] [2022-03-01 17:57:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:57:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:57:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:57:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:57:32,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:57:32,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657542420] [2022-03-01 17:57:32,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657542420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:57:32,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:57:32,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:57:32,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964238809] [2022-03-01 17:57:32,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:57:32,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:57:32,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:57:32,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:57:32,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:57:32,891 INFO L87 Difference]: Start difference. First operand 214689 states and 899751 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:57:36,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:57:36,506 INFO L93 Difference]: Finished difference Result 301258 states and 1219472 transitions. [2022-03-01 17:57:36,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:57:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:57:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:57:40,404 INFO L225 Difference]: With dead ends: 301258 [2022-03-01 17:57:40,404 INFO L226 Difference]: Without dead ends: 298978 [2022-03-01 17:57:40,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:57:40,405 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 146 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:57:40,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 236 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:57:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298978 states. [2022-03-01 17:57:49,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298978 to 203045. [2022-03-01 17:57:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203045 states, 203044 states have (on average 4.065946297354268) internal successors, (825566), 203044 states have internal predecessors, (825566), 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) [2022-03-01 17:57:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203045 states to 203045 states and 825566 transitions. [2022-03-01 17:57:50,994 INFO L78 Accepts]: Start accepts. Automaton has 203045 states and 825566 transitions. Word has length 46 [2022-03-01 17:57:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:57:50,994 INFO L470 AbstractCegarLoop]: Abstraction has 203045 states and 825566 transitions. [2022-03-01 17:57:50,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:57:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 203045 states and 825566 transitions. [2022-03-01 17:57:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:57:52,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:57:52,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:57:52,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 17:57:52,030 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:57:52,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:57:52,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1875280512, now seen corresponding path program 20 times [2022-03-01 17:57:52,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:57:52,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913792929] [2022-03-01 17:57:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:57:52,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:57:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:57:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:57:52,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:57:52,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913792929] [2022-03-01 17:57:52,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913792929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:57:52,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:57:52,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:57:52,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860185198] [2022-03-01 17:57:52,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:57:52,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:57:52,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:57:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:57:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:57:52,089 INFO L87 Difference]: Start difference. First operand 203045 states and 825566 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:57:55,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:57:55,422 INFO L93 Difference]: Finished difference Result 288060 states and 1146724 transitions. [2022-03-01 17:57:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:57:55,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:57:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:57:58,676 INFO L225 Difference]: With dead ends: 288060 [2022-03-01 17:57:58,676 INFO L226 Difference]: Without dead ends: 284768 [2022-03-01 17:57:58,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-01 17:57:58,677 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 140 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:57:58,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 227 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:57:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284768 states. [2022-03-01 17:58:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284768 to 191781. [2022-03-01 17:58:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191781 states, 191780 states have (on average 4.031426634685578) internal successors, (773147), 191780 states have internal predecessors, (773147), 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) [2022-03-01 17:58:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191781 states to 191781 states and 773147 transitions. [2022-03-01 17:58:09,761 INFO L78 Accepts]: Start accepts. Automaton has 191781 states and 773147 transitions. Word has length 46 [2022-03-01 17:58:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:58:09,761 INFO L470 AbstractCegarLoop]: Abstraction has 191781 states and 773147 transitions. [2022-03-01 17:58:09,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:58:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 191781 states and 773147 transitions. [2022-03-01 17:58:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:58:10,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:58:10,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:58:10,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 17:58:10,685 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:58:10,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:58:10,685 INFO L85 PathProgramCache]: Analyzing trace with hash -69930492, now seen corresponding path program 21 times [2022-03-01 17:58:10,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:58:10,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179468010] [2022-03-01 17:58:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:58:10,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:58:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:58:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:58:10,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:58:10,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179468010] [2022-03-01 17:58:10,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179468010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:58:10,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:58:10,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:58:10,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317463352] [2022-03-01 17:58:10,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:58:10,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:58:10,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:58:10,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:58:10,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:58:10,762 INFO L87 Difference]: Start difference. First operand 191781 states and 773147 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:58:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:58:13,757 INFO L93 Difference]: Finished difference Result 291444 states and 1166322 transitions. [2022-03-01 17:58:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:58:13,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:58:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:58:15,715 INFO L225 Difference]: With dead ends: 291444 [2022-03-01 17:58:15,715 INFO L226 Difference]: Without dead ends: 290940 [2022-03-01 17:58:15,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:58:15,716 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 147 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:58:15,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 258 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:58:16,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290940 states. [2022-03-01 17:58:26,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290940 to 193151. [2022-03-01 17:58:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193151 states, 193150 states have (on average 4.031731814651825) internal successors, (778729), 193150 states have internal predecessors, (778729), 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) [2022-03-01 17:58:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193151 states to 193151 states and 778729 transitions. [2022-03-01 17:58:28,593 INFO L78 Accepts]: Start accepts. Automaton has 193151 states and 778729 transitions. Word has length 46 [2022-03-01 17:58:28,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:58:28,593 INFO L470 AbstractCegarLoop]: Abstraction has 193151 states and 778729 transitions. [2022-03-01 17:58:28,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:58:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 193151 states and 778729 transitions. [2022-03-01 17:58:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:58:29,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:58:29,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:58:29,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 17:58:29,579 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:58:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:58:29,580 INFO L85 PathProgramCache]: Analyzing trace with hash 720177954, now seen corresponding path program 22 times [2022-03-01 17:58:29,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:58:29,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821249521] [2022-03-01 17:58:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:58:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:58:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:58:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:58:29,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:58:29,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821249521] [2022-03-01 17:58:29,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821249521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:58:29,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:58:29,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 17:58:29,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649473591] [2022-03-01 17:58:29,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:58:29,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 17:58:29,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:58:29,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 17:58:29,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:58:29,636 INFO L87 Difference]: Start difference. First operand 193151 states and 778729 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:58:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:58:33,081 INFO L93 Difference]: Finished difference Result 290239 states and 1157560 transitions. [2022-03-01 17:58:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 17:58:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:58:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:58:35,364 INFO L225 Difference]: With dead ends: 290239 [2022-03-01 17:58:35,365 INFO L226 Difference]: Without dead ends: 288247 [2022-03-01 17:58:35,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-01 17:58:35,365 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 169 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:58:35,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 342 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 17:58:35,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288247 states. [2022-03-01 17:58:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288247 to 190545. [2022-03-01 17:58:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190545 states, 190544 states have (on average 4.026056973717357) internal successors, (767141), 190544 states have internal predecessors, (767141), 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) [2022-03-01 17:58:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190545 states to 190545 states and 767141 transitions. [2022-03-01 17:58:47,117 INFO L78 Accepts]: Start accepts. Automaton has 190545 states and 767141 transitions. Word has length 46 [2022-03-01 17:58:47,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:58:47,117 INFO L470 AbstractCegarLoop]: Abstraction has 190545 states and 767141 transitions. [2022-03-01 17:58:47,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-03-01 17:58:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand 190545 states and 767141 transitions. [2022-03-01 17:58:48,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:58:48,489 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:58:48,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:58:48,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 17:58:48,489 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:58:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:58:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1029661538, now seen corresponding path program 23 times [2022-03-01 17:58:48,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:58:48,490 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642537860] [2022-03-01 17:58:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:58:48,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:58:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:58:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:58:48,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:58:48,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642537860] [2022-03-01 17:58:48,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642537860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:58:48,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:58:48,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 17:58:48,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709198212] [2022-03-01 17:58:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:58:48,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 17:58:48,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:58:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 17:58:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:58:48,564 INFO L87 Difference]: Start difference. First operand 190545 states and 767141 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2022-03-01 17:58:52,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:58:52,728 INFO L93 Difference]: Finished difference Result 295536 states and 1171795 transitions. [2022-03-01 17:58:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 17:58:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:58:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:58:54,930 INFO L225 Difference]: With dead ends: 295536 [2022-03-01 17:58:54,930 INFO L226 Difference]: Without dead ends: 294600 [2022-03-01 17:58:54,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:58:54,931 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 221 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:58:54,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 428 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 17:58:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294600 states. [2022-03-01 17:59:05,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294600 to 201602. [2022-03-01 17:59:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201602 states, 201601 states have (on average 3.9736707655219963) internal successors, (801096), 201601 states have internal predecessors, (801096), 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) [2022-03-01 17:59:07,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201602 states to 201602 states and 801096 transitions. [2022-03-01 17:59:07,885 INFO L78 Accepts]: Start accepts. Automaton has 201602 states and 801096 transitions. Word has length 46 [2022-03-01 17:59:07,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:59:07,885 INFO L470 AbstractCegarLoop]: Abstraction has 201602 states and 801096 transitions. [2022-03-01 17:59:07,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2022-03-01 17:59:07,885 INFO L276 IsEmpty]: Start isEmpty. Operand 201602 states and 801096 transitions. [2022-03-01 17:59:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-01 17:59:08,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:59:08,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:59:08,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 17:59:08,877 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:59:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:59:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash -172253148, now seen corresponding path program 24 times [2022-03-01 17:59:08,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:59:08,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637101579] [2022-03-01 17:59:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:59:08,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:59:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:59:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:59:08,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:59:08,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637101579] [2022-03-01 17:59:08,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637101579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:59:08,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:59:08,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:59:08,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947193224] [2022-03-01 17:59:08,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:59:08,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:59:08,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:59:08,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:59:08,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:59:08,948 INFO L87 Difference]: Start difference. First operand 201602 states and 801096 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2022-03-01 17:59:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:59:11,984 INFO L93 Difference]: Finished difference Result 301277 states and 1187823 transitions. [2022-03-01 17:59:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 17:59:11,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) Word has length 46 [2022-03-01 17:59:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:59:13,980 INFO L225 Difference]: With dead ends: 301277 [2022-03-01 17:59:13,981 INFO L226 Difference]: Without dead ends: 300645 [2022-03-01 17:59:13,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-01 17:59:13,981 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 145 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:59:13,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 234 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:59:15,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300645 states. Received shutdown request... [2022-03-01 17:59:24,403 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 [2022-03-01 17:59:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300645 to 202082. [2022-03-01 17:59:25,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-03-01 17:59:26,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202082 states, 202081 states have (on average 3.971120491288147) internal successors, (802488), 202081 states have internal predecessors, (802488), 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) [2022-03-01 17:59:26,076 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-01 17:59:26,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 17:59:26,077 WARN L594 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2022-03-01 17:59:26,084 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 7 remaining) [2022-03-01 17:59:26,084 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (4 of 7 remaining) [2022-03-01 17:59:26,084 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-03-01 17:59:26,084 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-03-01 17:59:26,084 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION (1 of 7 remaining) [2022-03-01 17:59:26,085 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATION (0 of 7 remaining) [2022-03-01 17:59:26,107 INFO L732 BasicCegarLoop]: Path program histogram: [24] [2022-03-01 17:59:26,109 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 17:59:26,109 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 17:59:26,110 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 05:59:26 BasicIcfg [2022-03-01 17:59:26,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 17:59:26,111 INFO L158 Benchmark]: Toolchain (without parser) took 504730.03ms. Allocated memory was 182.5MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 136.9MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. [2022-03-01 17:59:26,111 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 17:59:26,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.01ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 135.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 17:59:26,111 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 134.3MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 17:59:26,112 INFO L158 Benchmark]: RCFGBuilder took 275.18ms. Allocated memory is still 182.5MB. Free memory was 134.3MB in the beginning and 123.5MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-01 17:59:26,112 INFO L158 Benchmark]: TraceAbstraction took 504400.74ms. Allocated memory was 182.5MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 123.0MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. [2022-03-01 17:59:26,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.01ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 135.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 134.3MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 275.18ms. Allocated memory is still 182.5MB. Free memory was 134.3MB in the beginning and 123.5MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 504400.74ms. Allocated memory was 182.5MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 123.0MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 110]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 98 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 504.2s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 26.4s, AutomataDifference: 180.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3421 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3421 mSDsluCounter, 5307 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6825 mSDsCounter, 1307 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10469 IncrementalHoareTripleChecker+Invalid, 11776 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1307 mSolverCounterUnsat, 1311 mSDtfsCounter, 10469 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230772occurred in iteration=12, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 292.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 2413850 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1104 NumberOfCodeBlocks, 1104 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1080 ConstructedInterpolants, 0 QuantifiedInterpolants, 3310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 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