/usr/bin/java -Xmx16000000000 -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-dev-bc79526 [2022-01-18 05:33:15,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 05:33:15,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 05:33:15,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 05:33:15,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 05:33:15,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 05:33:15,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 05:33:15,643 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 [2022-01-18 05:33:15,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 05:33:15,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 05:33:15,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 05:33:15,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 05:33:15,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 05:33:15,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 05:33:15,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 05:33:15,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 05:33:15,680 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 05:33:15,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 05:33:15,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 05:33:15,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 05:33:15,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 05:33:15,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 05:33:15,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 05:33:15,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 05:33:15,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 05:33:15,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 05:33:15,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 05:33:15,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 05:33:15,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 05:33:15,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 05:33:15,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 05:33:15,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 05:33:15,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 05:33:15,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:33:15,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 05:33:15,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 05:33:15,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 05:33:15,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 05:33:15,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 05:33:15,685 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 05:33:15,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 05:33:15,685 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 05:33:15,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 05:33:15,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 05:33:15,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 05:33:15,908 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 05:33:15,909 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 05:33:15,910 INFO L432 ainManager$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 [2022-01-18 05:33:15,910 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl' [2022-01-18 05:33:15,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 05:33:15,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 05:33:15,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 05:33:15,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 05:33:15,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 05:33:15,943 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 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,949 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 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,954 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 05:33:15,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 05:33:15,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 05:33:15,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 05:33:15,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 05:33:15,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 05:33:15,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 05:33:15,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 05:33:15,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 05:33:15,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/1) ... [2022-01-18 05:33:15,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:33:15,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 05:33:15,993 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) [2022-01-18 05:33:16,016 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 [2022-01-18 05:33:16,028 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 05:33:16,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 05:33:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 05:33:16,029 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 05:33:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 05:33:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 05:33:16,029 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 05:33:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 05:33:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 05:33:16,030 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 05:33:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 05:33:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 05:33:16,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 05:33:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 05:33:16,031 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 05:33:16,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-01-18 05:33:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-18 05:33:16,031 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-18 05:33:16,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-01-18 05:33:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-01-18 05:33:16,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-01-18 05:33:16,032 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 05:33:16,067 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 05:33:16,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 05:33:16,167 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 05:33:16,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 05:33:16,189 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 05:33:16,191 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:33:16 BoogieIcfgContainer [2022-01-18 05:33:16,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 05:33:16,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 05:33:16,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 05:33:16,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 05:33:16,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:33:15" (1/2) ... [2022-01-18 05:33:16,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6f55b8 and model type ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 05:33:16, skipping insertion in model container [2022-01-18 05:33:16,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:33:16" (2/2) ... [2022-01-18 05:33:16,200 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-6.wvr.bpl [2022-01-18 05:33:16,204 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 05:33:16,205 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 05:33:16,205 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 05:33:16,205 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 05:33:16,251 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-01-18 05:33:16,288 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 05:33:16,294 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 05:33:16,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-18 05:33:16,304 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 54 transitions, 156 flow [2022-01-18 05:33:19,267 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) [2022-01-18 05:33:19,385 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) [2022-01-18 05:33:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:33:19,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:33:19,989 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] [2022-01-18 05:33:19,990 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:33:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:33:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash 450303750, now seen corresponding path program 1 times [2022-01-18 05:33:20,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:33:20,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159337714] [2022-01-18 05:33:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:33:20,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:33:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:33:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:33:20,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:33:20,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159337714] [2022-01-18 05:33:20,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159337714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:33:20,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:33:20,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:33:20,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316921315] [2022-01-18 05:33:20,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:33:20,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:33:20,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:33:20,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:33:20,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:33:20,465 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) [2022-01-18 05:33:24,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:33:24,098 INFO L93 Difference]: Finished difference Result 201088 states and 980337 transitions. [2022-01-18 05:33:24,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:33:24,100 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 [2022-01-18 05:33:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:33:25,697 INFO L225 Difference]: With dead ends: 201088 [2022-01-18 05:33:25,697 INFO L226 Difference]: Without dead ends: 201088 [2022-01-18 05:33:25,699 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 [2022-01-18 05:33:25,702 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 87 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-01-18 05:33:25,702 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] [2022-01-18 05:33:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201088 states. [2022-01-18 05:33:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201088 to 100373. [2022-01-18 05:33:32,023 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) [2022-01-18 05:33:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100373 states to 100373 states and 494834 transitions. [2022-01-18 05:33:33,409 INFO L78 Accepts]: Start accepts. Automaton has 100373 states and 494834 transitions. Word has length 46 [2022-01-18 05:33:33,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:33:33,410 INFO L470 AbstractCegarLoop]: Abstraction has 100373 states and 494834 transitions. [2022-01-18 05:33:33,410 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) [2022-01-18 05:33:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 100373 states and 494834 transitions. [2022-01-18 05:33:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:33:33,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:33:33,943 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] [2022-01-18 05:33:33,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 05:33:33,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:33:33,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:33:33,945 INFO L85 PathProgramCache]: Analyzing trace with hash 717350054, now seen corresponding path program 2 times [2022-01-18 05:33:33,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:33:33,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348999366] [2022-01-18 05:33:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:33:33,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:33:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:33:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:33:34,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:33:34,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348999366] [2022-01-18 05:33:34,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348999366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:33:34,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:33:34,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:33:34,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279735873] [2022-01-18 05:33:34,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:33:34,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:33:34,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:33:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:33:34,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:33:34,043 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) [2022-01-18 05:33:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:33:37,137 INFO L93 Difference]: Finished difference Result 237543 states and 1143295 transitions. [2022-01-18 05:33:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:33:37,138 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 [2022-01-18 05:33:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:33:39,378 INFO L225 Difference]: With dead ends: 237543 [2022-01-18 05:33:39,378 INFO L226 Difference]: Without dead ends: 237543 [2022-01-18 05:33:39,379 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 [2022-01-18 05:33:39,380 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 [2022-01-18 05:33:39,381 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] [2022-01-18 05:33:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237543 states. [2022-01-18 05:33:45,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237543 to 124242. [2022-01-18 05:33:45,485 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) [2022-01-18 05:33:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124242 states to 124242 states and 604495 transitions. [2022-01-18 05:33:46,944 INFO L78 Accepts]: Start accepts. Automaton has 124242 states and 604495 transitions. Word has length 46 [2022-01-18 05:33:46,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:33:46,945 INFO L470 AbstractCegarLoop]: Abstraction has 124242 states and 604495 transitions. [2022-01-18 05:33:46,945 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) [2022-01-18 05:33:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 124242 states and 604495 transitions. [2022-01-18 05:33:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:33:47,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:33:47,333 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] [2022-01-18 05:33:47,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 05:33:47,334 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:33:47,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:33:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1706198856, now seen corresponding path program 3 times [2022-01-18 05:33:47,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:33:47,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592892758] [2022-01-18 05:33:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:33:47,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:33:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:33:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:33:47,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:33:47,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592892758] [2022-01-18 05:33:47,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592892758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:33:47,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:33:47,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:33:47,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551001565] [2022-01-18 05:33:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:33:47,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:33:47,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:33:47,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:33:47,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:33:47,410 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) [2022-01-18 05:33:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:33:50,499 INFO L93 Difference]: Finished difference Result 232977 states and 1116666 transitions. [2022-01-18 05:33:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:33:50,500 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 [2022-01-18 05:33:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:33:52,822 INFO L225 Difference]: With dead ends: 232977 [2022-01-18 05:33:52,822 INFO L226 Difference]: Without dead ends: 232977 [2022-01-18 05:33:52,823 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 [2022-01-18 05:33:52,825 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 [2022-01-18 05:33:52,825 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] [2022-01-18 05:33:53,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232977 states. [2022-01-18 05:33:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232977 to 140760. [2022-01-18 05:33:59,019 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) [2022-01-18 05:34:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140760 states to 140760 states and 682495 transitions. [2022-01-18 05:34:00,513 INFO L78 Accepts]: Start accepts. Automaton has 140760 states and 682495 transitions. Word has length 46 [2022-01-18 05:34:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:34:00,514 INFO L470 AbstractCegarLoop]: Abstraction has 140760 states and 682495 transitions. [2022-01-18 05:34:00,514 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) [2022-01-18 05:34:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 140760 states and 682495 transitions. [2022-01-18 05:34:01,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:34:01,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:34:01,720 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] [2022-01-18 05:34:01,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 05:34:01,721 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:34:01,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:34:01,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1401464350, now seen corresponding path program 4 times [2022-01-18 05:34:01,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:34:01,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124455089] [2022-01-18 05:34:01,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:34:01,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:34:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:34:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:34:01,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:34:01,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124455089] [2022-01-18 05:34:01,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124455089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:34:01,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:34:01,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:34:01,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945491875] [2022-01-18 05:34:01,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:34:01,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:34:01,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:34:01,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:34:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:34:01,816 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) [2022-01-18 05:34:04,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:34:04,159 INFO L93 Difference]: Finished difference Result 207060 states and 995129 transitions. [2022-01-18 05:34:04,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:34:04,159 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 [2022-01-18 05:34:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:34:06,173 INFO L225 Difference]: With dead ends: 207060 [2022-01-18 05:34:06,173 INFO L226 Difference]: Without dead ends: 207060 [2022-01-18 05:34:06,173 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 [2022-01-18 05:34:06,175 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:34:06,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 288 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:34:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207060 states. [2022-01-18 05:34:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207060 to 146091. [2022-01-18 05:34:11,866 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) [2022-01-18 05:34:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146091 states to 146091 states and 706032 transitions. [2022-01-18 05:34:13,405 INFO L78 Accepts]: Start accepts. Automaton has 146091 states and 706032 transitions. Word has length 46 [2022-01-18 05:34:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:34:13,406 INFO L470 AbstractCegarLoop]: Abstraction has 146091 states and 706032 transitions. [2022-01-18 05:34:13,406 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) [2022-01-18 05:34:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 146091 states and 706032 transitions. [2022-01-18 05:34:13,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:34:13,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:34:13,865 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] [2022-01-18 05:34:13,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 05:34:13,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:34:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:34:13,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1511901302, now seen corresponding path program 5 times [2022-01-18 05:34:13,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:34:13,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008894117] [2022-01-18 05:34:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:34:13,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:34:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:34:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:34:13,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:34:13,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008894117] [2022-01-18 05:34:13,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008894117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:34:13,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:34:13,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:34:13,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087456814] [2022-01-18 05:34:13,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:34:13,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:34:13,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:34:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:34:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:34:13,935 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) [2022-01-18 05:34:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:34:17,361 INFO L93 Difference]: Finished difference Result 271147 states and 1272171 transitions. [2022-01-18 05:34:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:34:17,362 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 [2022-01-18 05:34:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:34:19,777 INFO L225 Difference]: With dead ends: 271147 [2022-01-18 05:34:19,777 INFO L226 Difference]: Without dead ends: 271147 [2022-01-18 05:34:19,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:34:19,779 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 163 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:34:19,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 231 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:34:20,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271147 states. [2022-01-18 05:34:26,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271147 to 164447. [2022-01-18 05:34:27,074 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) [2022-01-18 05:34:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164447 states to 164447 states and 774918 transitions. [2022-01-18 05:34:27,928 INFO L78 Accepts]: Start accepts. Automaton has 164447 states and 774918 transitions. Word has length 46 [2022-01-18 05:34:27,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:34:27,928 INFO L470 AbstractCegarLoop]: Abstraction has 164447 states and 774918 transitions. [2022-01-18 05:34:27,929 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) [2022-01-18 05:34:27,929 INFO L276 IsEmpty]: Start isEmpty. Operand 164447 states and 774918 transitions. [2022-01-18 05:34:29,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:34:29,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:34:29,812 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] [2022-01-18 05:34:29,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 05:34:29,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:34:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:34:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash -388722550, now seen corresponding path program 6 times [2022-01-18 05:34:29,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:34:29,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781237160] [2022-01-18 05:34:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:34:29,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:34:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:34:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:34:29,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:34:29,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781237160] [2022-01-18 05:34:29,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781237160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:34:29,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:34:29,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:34:29,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66832096] [2022-01-18 05:34:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:34:29,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:34:29,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:34:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:34:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:34:29,892 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) [2022-01-18 05:34:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:34:34,113 INFO L93 Difference]: Finished difference Result 281393 states and 1303094 transitions. [2022-01-18 05:34:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:34:34,114 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 [2022-01-18 05:34:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:34:36,055 INFO L225 Difference]: With dead ends: 281393 [2022-01-18 05:34:36,055 INFO L226 Difference]: Without dead ends: 281393 [2022-01-18 05:34:36,055 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 [2022-01-18 05:34:36,056 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, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 05:34:36,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 291 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 05:34:37,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281393 states. [2022-01-18 05:34:44,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281393 to 185569. [2022-01-18 05:34:44,956 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) [2022-01-18 05:34:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185569 states to 185569 states and 861955 transitions. [2022-01-18 05:34:46,707 INFO L78 Accepts]: Start accepts. Automaton has 185569 states and 861955 transitions. Word has length 46 [2022-01-18 05:34:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:34:46,708 INFO L470 AbstractCegarLoop]: Abstraction has 185569 states and 861955 transitions. [2022-01-18 05:34:46,708 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) [2022-01-18 05:34:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 185569 states and 861955 transitions. [2022-01-18 05:34:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:34:47,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:34:47,342 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] [2022-01-18 05:34:47,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 05:34:47,343 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:34:47,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:34:47,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1086431228, now seen corresponding path program 7 times [2022-01-18 05:34:47,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:34:47,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815509494] [2022-01-18 05:34:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:34:47,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:34:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:34:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:34:47,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:34:47,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815509494] [2022-01-18 05:34:47,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815509494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:34:47,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:34:47,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:34:47,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266789783] [2022-01-18 05:34:47,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:34:47,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:34:47,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:34:47,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:34:47,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:34:47,450 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) [2022-01-18 05:34:50,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:34:50,571 INFO L93 Difference]: Finished difference Result 292927 states and 1358658 transitions. [2022-01-18 05:34:50,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 05:34:50,571 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 [2022-01-18 05:34:50,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:34:51,796 INFO L225 Difference]: With dead ends: 292927 [2022-01-18 05:34:51,796 INFO L226 Difference]: Without dead ends: 196405 [2022-01-18 05:34:51,796 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 [2022-01-18 05:34:51,797 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 95 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:34:51,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 82 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:34:52,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196405 states. [2022-01-18 05:34:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196405 to 196405. [2022-01-18 05:34:58,290 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) [2022-01-18 05:35:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196405 states to 196405 states and 892676 transitions. [2022-01-18 05:35:00,165 INFO L78 Accepts]: Start accepts. Automaton has 196405 states and 892676 transitions. Word has length 46 [2022-01-18 05:35:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:35:00,165 INFO L470 AbstractCegarLoop]: Abstraction has 196405 states and 892676 transitions. [2022-01-18 05:35:00,166 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) [2022-01-18 05:35:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 196405 states and 892676 transitions. [2022-01-18 05:35:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:35:00,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:35:00,786 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] [2022-01-18 05:35:00,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 05:35:00,786 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:35:00,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:35:00,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1313539938, now seen corresponding path program 8 times [2022-01-18 05:35:00,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:35:00,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562733859] [2022-01-18 05:35:00,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:35:00,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:35:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:35:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:35:00,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:35:00,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562733859] [2022-01-18 05:35:00,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562733859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:35:00,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:35:00,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:35:00,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435935169] [2022-01-18 05:35:00,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:35:00,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:35:00,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:35:00,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:35:00,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:35:00,880 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) [2022-01-18 05:35:04,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:35:04,284 INFO L93 Difference]: Finished difference Result 311447 states and 1399231 transitions. [2022-01-18 05:35:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:35:04,285 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 [2022-01-18 05:35:04,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:35:06,936 INFO L225 Difference]: With dead ends: 311447 [2022-01-18 05:35:06,937 INFO L226 Difference]: Without dead ends: 311255 [2022-01-18 05:35:06,937 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 [2022-01-18 05:35:06,938 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 [2022-01-18 05:35:06,938 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] [2022-01-18 05:35:07,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311255 states. [2022-01-18 05:35:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311255 to 207417. [2022-01-18 05:35:16,288 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) [2022-01-18 05:35:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207417 states to 207417 states and 938144 transitions. [2022-01-18 05:35:18,152 INFO L78 Accepts]: Start accepts. Automaton has 207417 states and 938144 transitions. Word has length 46 [2022-01-18 05:35:18,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:35:18,153 INFO L470 AbstractCegarLoop]: Abstraction has 207417 states and 938144 transitions. [2022-01-18 05:35:18,153 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) [2022-01-18 05:35:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 207417 states and 938144 transitions. [2022-01-18 05:35:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:35:18,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:35:18,859 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] [2022-01-18 05:35:18,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 05:35:18,860 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:35:18,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:35:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash -196650254, now seen corresponding path program 9 times [2022-01-18 05:35:18,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:35:18,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430181679] [2022-01-18 05:35:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:35:18,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:35:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:35:18,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:35:18,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:35:18,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430181679] [2022-01-18 05:35:18,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430181679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:35:18,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:35:18,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:35:18,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868764734] [2022-01-18 05:35:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:35:18,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:35:18,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:35:18,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:35:18,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:35:18,923 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) [2022-01-18 05:35:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:35:23,124 INFO L93 Difference]: Finished difference Result 334168 states and 1492333 transitions. [2022-01-18 05:35:23,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:35:23,124 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 [2022-01-18 05:35:23,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:35:27,467 INFO L225 Difference]: With dead ends: 334168 [2022-01-18 05:35:27,468 INFO L226 Difference]: Without dead ends: 333766 [2022-01-18 05:35:27,469 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 [2022-01-18 05:35:27,472 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:35:27,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 177 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:35:28,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333766 states. [2022-01-18 05:35:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333766 to 214179. [2022-01-18 05:35:36,414 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) [2022-01-18 05:35:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214179 states to 214179 states and 963164 transitions. [2022-01-18 05:35:38,314 INFO L78 Accepts]: Start accepts. Automaton has 214179 states and 963164 transitions. Word has length 46 [2022-01-18 05:35:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:35:38,315 INFO L470 AbstractCegarLoop]: Abstraction has 214179 states and 963164 transitions. [2022-01-18 05:35:38,315 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) [2022-01-18 05:35:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 214179 states and 963164 transitions. [2022-01-18 05:35:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:35:39,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:35:39,865 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] [2022-01-18 05:35:39,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 05:35:39,866 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:35:39,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:35:39,866 INFO L85 PathProgramCache]: Analyzing trace with hash 565777960, now seen corresponding path program 10 times [2022-01-18 05:35:39,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:35:39,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139709588] [2022-01-18 05:35:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:35:39,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:35:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:35:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:35:39,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:35:39,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139709588] [2022-01-18 05:35:39,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139709588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:35:39,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:35:39,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:35:39,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424768068] [2022-01-18 05:35:39,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:35:39,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:35:39,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:35:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:35:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:35:39,933 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) [2022-01-18 05:35:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:35:43,878 INFO L93 Difference]: Finished difference Result 354188 states and 1551857 transitions. [2022-01-18 05:35:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:35:43,879 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 [2022-01-18 05:35:43,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:35:46,741 INFO L225 Difference]: With dead ends: 354188 [2022-01-18 05:35:46,741 INFO L226 Difference]: Without dead ends: 353624 [2022-01-18 05:35:46,741 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 [2022-01-18 05:35:46,742 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 [2022-01-18 05:35:46,742 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] [2022-01-18 05:35:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353624 states. [2022-01-18 05:35:55,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353624 to 224674. [2022-01-18 05:35:56,323 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) [2022-01-18 05:35:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224674 states to 224674 states and 996206 transitions. [2022-01-18 05:35:58,290 INFO L78 Accepts]: Start accepts. Automaton has 224674 states and 996206 transitions. Word has length 46 [2022-01-18 05:35:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:35:58,290 INFO L470 AbstractCegarLoop]: Abstraction has 224674 states and 996206 transitions. [2022-01-18 05:35:58,290 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) [2022-01-18 05:35:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 224674 states and 996206 transitions. [2022-01-18 05:35:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:35:59,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:35:59,007 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] [2022-01-18 05:35:59,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 05:35:59,008 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:35:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:35:59,008 INFO L85 PathProgramCache]: Analyzing trace with hash 625190246, now seen corresponding path program 11 times [2022-01-18 05:35:59,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:35:59,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893429873] [2022-01-18 05:35:59,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:35:59,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:35:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:35:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:35:59,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:35:59,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893429873] [2022-01-18 05:35:59,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893429873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:35:59,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:35:59,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:35:59,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709513721] [2022-01-18 05:35:59,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:35:59,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:35:59,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:35:59,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:35:59,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:35:59,082 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) [2022-01-18 05:36:02,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:36:02,445 INFO L93 Difference]: Finished difference Result 313135 states and 1375062 transitions. [2022-01-18 05:36:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:36:02,446 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 [2022-01-18 05:36:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:36:05,090 INFO L225 Difference]: With dead ends: 313135 [2022-01-18 05:36:05,091 INFO L226 Difference]: Without dead ends: 313027 [2022-01-18 05:36:05,094 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 [2022-01-18 05:36:05,094 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 [2022-01-18 05:36:05,095 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] [2022-01-18 05:36:05,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313027 states. [2022-01-18 05:36:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313027 to 222693. [2022-01-18 05:36:14,577 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) [2022-01-18 05:36:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222693 states to 222693 states and 987269 transitions. [2022-01-18 05:36:16,875 INFO L78 Accepts]: Start accepts. Automaton has 222693 states and 987269 transitions. Word has length 46 [2022-01-18 05:36:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:36:16,875 INFO L470 AbstractCegarLoop]: Abstraction has 222693 states and 987269 transitions. [2022-01-18 05:36:16,876 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) [2022-01-18 05:36:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 222693 states and 987269 transitions. [2022-01-18 05:36:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:36:18,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:36:18,181 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] [2022-01-18 05:36:18,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 05:36:18,181 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:36:18,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:36:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1961930376, now seen corresponding path program 12 times [2022-01-18 05:36:18,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:36:18,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501728919] [2022-01-18 05:36:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:36:18,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:36:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:36:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:36:18,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:36:18,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501728919] [2022-01-18 05:36:18,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501728919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:36:18,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:36:18,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:36:18,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653013791] [2022-01-18 05:36:18,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:36:18,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:36:18,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:36:18,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:36:18,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:36:18,323 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) [2022-01-18 05:36:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:36:23,121 INFO L93 Difference]: Finished difference Result 317016 states and 1385687 transitions. [2022-01-18 05:36:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:36:23,122 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 [2022-01-18 05:36:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:36:26,684 INFO L225 Difference]: With dead ends: 317016 [2022-01-18 05:36:26,684 INFO L226 Difference]: Without dead ends: 316890 [2022-01-18 05:36:26,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:36:26,685 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 207 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 05:36:26,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 316 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 05:36:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316890 states. [2022-01-18 05:36:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316890 to 230772. [2022-01-18 05:36:36,801 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) [2022-01-18 05:36:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230772 states to 230772 states and 1016189 transitions. [2022-01-18 05:36:38,723 INFO L78 Accepts]: Start accepts. Automaton has 230772 states and 1016189 transitions. Word has length 46 [2022-01-18 05:36:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:36:38,724 INFO L470 AbstractCegarLoop]: Abstraction has 230772 states and 1016189 transitions. [2022-01-18 05:36:38,724 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) [2022-01-18 05:36:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 230772 states and 1016189 transitions. [2022-01-18 05:36:39,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:36:39,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:36:39,524 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] [2022-01-18 05:36:39,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 05:36:39,524 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:36:39,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:36:39,525 INFO L85 PathProgramCache]: Analyzing trace with hash 316967760, now seen corresponding path program 13 times [2022-01-18 05:36:39,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:36:39,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985192855] [2022-01-18 05:36:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:36:39,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:36:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:36:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:36:39,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:36:39,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985192855] [2022-01-18 05:36:39,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985192855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:36:39,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:36:39,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:36:39,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119769296] [2022-01-18 05:36:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:36:39,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:36:39,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:36:39,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:36:39,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:36:39,557 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) [2022-01-18 05:36:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:36:44,259 INFO L93 Difference]: Finished difference Result 408478 states and 1765876 transitions. [2022-01-18 05:36:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:36:44,259 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 [2022-01-18 05:36:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:36:47,583 INFO L225 Difference]: With dead ends: 408478 [2022-01-18 05:36:47,584 INFO L226 Difference]: Without dead ends: 407788 [2022-01-18 05:36:47,584 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 [2022-01-18 05:36:47,585 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:36:47,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 116 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:36:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407788 states. [2022-01-18 05:36:57,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407788 to 229608. [2022-01-18 05:36:57,654 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) [2022-01-18 05:36:59,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229608 states to 229608 states and 1010208 transitions. [2022-01-18 05:36:59,909 INFO L78 Accepts]: Start accepts. Automaton has 229608 states and 1010208 transitions. Word has length 46 [2022-01-18 05:36:59,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:36:59,909 INFO L470 AbstractCegarLoop]: Abstraction has 229608 states and 1010208 transitions. [2022-01-18 05:36:59,909 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) [2022-01-18 05:36:59,910 INFO L276 IsEmpty]: Start isEmpty. Operand 229608 states and 1010208 transitions. [2022-01-18 05:37:01,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:37:01,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:37:01,313 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] [2022-01-18 05:37:01,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 05:37:01,314 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:37:01,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:37:01,314 INFO L85 PathProgramCache]: Analyzing trace with hash 256407430, now seen corresponding path program 14 times [2022-01-18 05:37:01,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:37:01,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458828794] [2022-01-18 05:37:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:37:01,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:37:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:37:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:37:01,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:37:01,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458828794] [2022-01-18 05:37:01,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458828794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:37:01,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:37:01,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:37:01,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321069275] [2022-01-18 05:37:01,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:37:01,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:37:01,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:37:01,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:37:01,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:37:01,422 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) [2022-01-18 05:37:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:37:06,793 INFO L93 Difference]: Finished difference Result 402139 states and 1737491 transitions. [2022-01-18 05:37:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:37:06,794 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 [2022-01-18 05:37:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:37:12,287 INFO L225 Difference]: With dead ends: 402139 [2022-01-18 05:37:12,288 INFO L226 Difference]: Without dead ends: 401305 [2022-01-18 05:37:12,288 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 [2022-01-18 05:37:12,288 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 [2022-01-18 05:37:12,289 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] [2022-01-18 05:37:14,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401305 states. [2022-01-18 05:37:22,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401305 to 225477. [2022-01-18 05:37:23,026 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) [2022-01-18 05:37:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225477 states to 225477 states and 990085 transitions. [2022-01-18 05:37:24,999 INFO L78 Accepts]: Start accepts. Automaton has 225477 states and 990085 transitions. Word has length 46 [2022-01-18 05:37:25,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:37:25,000 INFO L470 AbstractCegarLoop]: Abstraction has 225477 states and 990085 transitions. [2022-01-18 05:37:25,000 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) [2022-01-18 05:37:25,000 INFO L276 IsEmpty]: Start isEmpty. Operand 225477 states and 990085 transitions. [2022-01-18 05:37:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:37:26,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:37:26,568 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] [2022-01-18 05:37:26,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 05:37:26,569 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:37:26,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:37:26,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1603349792, now seen corresponding path program 15 times [2022-01-18 05:37:26,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:37:26,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700656959] [2022-01-18 05:37:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:37:26,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:37:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:37:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:37:26,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:37:26,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700656959] [2022-01-18 05:37:26,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700656959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:37:26,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:37:26,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:37:26,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894857873] [2022-01-18 05:37:26,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:37:26,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:37:26,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:37:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:37:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:37:26,611 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) [2022-01-18 05:37:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:37:30,212 INFO L93 Difference]: Finished difference Result 357749 states and 1533942 transitions. [2022-01-18 05:37:30,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:37:30,212 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 [2022-01-18 05:37:30,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:37:32,962 INFO L225 Difference]: With dead ends: 357749 [2022-01-18 05:37:32,962 INFO L226 Difference]: Without dead ends: 357005 [2022-01-18 05:37:32,963 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 [2022-01-18 05:37:32,963 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:37:32,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 112 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:37:33,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357005 states. [2022-01-18 05:37:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357005 to 221600. [2022-01-18 05:37:41,337 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) [2022-01-18 05:37:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221600 states to 221600 states and 953675 transitions. [2022-01-18 05:37:44,291 INFO L78 Accepts]: Start accepts. Automaton has 221600 states and 953675 transitions. Word has length 46 [2022-01-18 05:37:44,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:37:44,292 INFO L470 AbstractCegarLoop]: Abstraction has 221600 states and 953675 transitions. [2022-01-18 05:37:44,292 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) [2022-01-18 05:37:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand 221600 states and 953675 transitions. [2022-01-18 05:37:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:37:45,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:37:45,838 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] [2022-01-18 05:37:45,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 05:37:45,839 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:37:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:37:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1827995230, now seen corresponding path program 16 times [2022-01-18 05:37:45,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:37:45,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936903323] [2022-01-18 05:37:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:37:45,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:37:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:37:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:37:45,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:37:45,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936903323] [2022-01-18 05:37:45,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936903323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:37:45,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:37:45,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:37:45,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075249539] [2022-01-18 05:37:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:37:45,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:37:45,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:37:45,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:37:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:37:45,955 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) [2022-01-18 05:37:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:37:50,504 INFO L93 Difference]: Finished difference Result 340498 states and 1448814 transitions. [2022-01-18 05:37:50,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:37:50,505 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 [2022-01-18 05:37:50,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:37:53,859 INFO L225 Difference]: With dead ends: 340498 [2022-01-18 05:37:53,859 INFO L226 Difference]: Without dead ends: 339658 [2022-01-18 05:37:53,860 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 [2022-01-18 05:37:53,860 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:37:53,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 168 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:37:55,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339658 states. [2022-01-18 05:38:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339658 to 224124. [2022-01-18 05:38:03,692 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) [2022-01-18 05:38:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224124 states to 224124 states and 960862 transitions. [2022-01-18 05:38:05,632 INFO L78 Accepts]: Start accepts. Automaton has 224124 states and 960862 transitions. Word has length 46 [2022-01-18 05:38:05,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:38:05,632 INFO L470 AbstractCegarLoop]: Abstraction has 224124 states and 960862 transitions. [2022-01-18 05:38:05,633 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) [2022-01-18 05:38:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand 224124 states and 960862 transitions. [2022-01-18 05:38:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:38:07,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:38:07,110 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] [2022-01-18 05:38:07,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 05:38:07,111 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:38:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:38:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1037886784, now seen corresponding path program 17 times [2022-01-18 05:38:07,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:38:07,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018446752] [2022-01-18 05:38:07,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:38:07,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:38:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:38:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:38:07,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:38:07,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018446752] [2022-01-18 05:38:07,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018446752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:38:07,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:38:07,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:38:07,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095072339] [2022-01-18 05:38:07,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:38:07,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:38:07,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:38:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:38:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:38:07,163 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) [2022-01-18 05:38:10,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:38:10,836 INFO L93 Difference]: Finished difference Result 353337 states and 1468711 transitions. [2022-01-18 05:38:10,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:38:10,836 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 [2022-01-18 05:38:10,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:38:13,569 INFO L225 Difference]: With dead ends: 353337 [2022-01-18 05:38:13,570 INFO L226 Difference]: Without dead ends: 350799 [2022-01-18 05:38:13,570 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 [2022-01-18 05:38:13,571 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 [2022-01-18 05:38:13,571 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] [2022-01-18 05:38:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350799 states. [2022-01-18 05:38:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350799 to 226951. [2022-01-18 05:38:22,287 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) [2022-01-18 05:38:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226951 states to 226951 states and 955192 transitions. [2022-01-18 05:38:24,255 INFO L78 Accepts]: Start accepts. Automaton has 226951 states and 955192 transitions. Word has length 46 [2022-01-18 05:38:24,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:38:24,255 INFO L470 AbstractCegarLoop]: Abstraction has 226951 states and 955192 transitions. [2022-01-18 05:38:24,255 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) [2022-01-18 05:38:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 226951 states and 955192 transitions. [2022-01-18 05:38:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:38:26,574 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:38:26,574 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] [2022-01-18 05:38:26,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 05:38:26,574 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:38:26,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:38:26,576 INFO L85 PathProgramCache]: Analyzing trace with hash 326907842, now seen corresponding path program 18 times [2022-01-18 05:38:26,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:38:26,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411179565] [2022-01-18 05:38:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:38:26,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:38:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:38:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:38:26,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:38:26,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411179565] [2022-01-18 05:38:26,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411179565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:38:26,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:38:26,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:38:26,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596762956] [2022-01-18 05:38:26,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:38:26,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:38:26,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:38:26,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:38:26,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:38:26,677 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) [2022-01-18 05:38:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:38:31,106 INFO L93 Difference]: Finished difference Result 324950 states and 1350459 transitions. [2022-01-18 05:38:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 05:38:31,107 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 [2022-01-18 05:38:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:38:33,233 INFO L225 Difference]: With dead ends: 324950 [2022-01-18 05:38:33,233 INFO L226 Difference]: Without dead ends: 323782 [2022-01-18 05:38:33,233 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 [2022-01-18 05:38:33,234 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 123 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-01-18 05:38:33,234 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] [2022-01-18 05:38:34,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323782 states. [2022-01-18 05:38:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323782 to 214689. [2022-01-18 05:38:42,606 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) [2022-01-18 05:38:44,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214689 states to 214689 states and 899751 transitions. [2022-01-18 05:38:44,432 INFO L78 Accepts]: Start accepts. Automaton has 214689 states and 899751 transitions. Word has length 46 [2022-01-18 05:38:44,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:38:44,432 INFO L470 AbstractCegarLoop]: Abstraction has 214689 states and 899751 transitions. [2022-01-18 05:38:44,433 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) [2022-01-18 05:38:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 214689 states and 899751 transitions. [2022-01-18 05:38:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:38:45,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:38:45,177 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] [2022-01-18 05:38:45,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 05:38:45,177 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:38:45,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:38:45,177 INFO L85 PathProgramCache]: Analyzing trace with hash 294980832, now seen corresponding path program 19 times [2022-01-18 05:38:45,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:38:45,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258923334] [2022-01-18 05:38:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:38:45,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:38:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:38:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:38:45,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:38:45,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258923334] [2022-01-18 05:38:45,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258923334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:38:45,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:38:45,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:38:45,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164294545] [2022-01-18 05:38:45,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:38:45,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:38:45,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:38:45,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:38:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:38:45,225 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) [2022-01-18 05:38:48,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:38:48,329 INFO L93 Difference]: Finished difference Result 301258 states and 1219472 transitions. [2022-01-18 05:38:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:38:48,330 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 [2022-01-18 05:38:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:38:49,925 INFO L225 Difference]: With dead ends: 301258 [2022-01-18 05:38:49,925 INFO L226 Difference]: Without dead ends: 298978 [2022-01-18 05:38:49,926 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 [2022-01-18 05:38:49,926 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 [2022-01-18 05:38:49,926 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] [2022-01-18 05:38:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298978 states. [2022-01-18 05:38:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298978 to 203045. [2022-01-18 05:38:58,100 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) [2022-01-18 05:38:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203045 states to 203045 states and 825566 transitions. [2022-01-18 05:38:59,014 INFO L78 Accepts]: Start accepts. Automaton has 203045 states and 825566 transitions. Word has length 46 [2022-01-18 05:38:59,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:38:59,014 INFO L470 AbstractCegarLoop]: Abstraction has 203045 states and 825566 transitions. [2022-01-18 05:38:59,014 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) [2022-01-18 05:38:59,015 INFO L276 IsEmpty]: Start isEmpty. Operand 203045 states and 825566 transitions. [2022-01-18 05:39:00,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:39:00,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:39:00,451 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] [2022-01-18 05:39:00,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 05:39:00,451 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:39:00,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:39:00,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1875280512, now seen corresponding path program 20 times [2022-01-18 05:39:00,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:39:00,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797710566] [2022-01-18 05:39:00,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:39:00,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:39:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:39:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:39:00,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:39:00,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797710566] [2022-01-18 05:39:00,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797710566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:39:00,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:39:00,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:39:00,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794612168] [2022-01-18 05:39:00,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:39:00,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:39:00,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:39:00,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:39:00,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:39:00,507 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) [2022-01-18 05:39:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:39:02,933 INFO L93 Difference]: Finished difference Result 288060 states and 1146724 transitions. [2022-01-18 05:39:02,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:39:02,933 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 [2022-01-18 05:39:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:39:05,179 INFO L225 Difference]: With dead ends: 288060 [2022-01-18 05:39:05,179 INFO L226 Difference]: Without dead ends: 284768 [2022-01-18 05:39:05,179 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 [2022-01-18 05:39:05,180 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:39:05,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 227 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:39:05,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284768 states. [2022-01-18 05:39:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284768 to 191781. [2022-01-18 05:39:12,691 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) [2022-01-18 05:39:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191781 states to 191781 states and 773147 transitions. [2022-01-18 05:39:14,371 INFO L78 Accepts]: Start accepts. Automaton has 191781 states and 773147 transitions. Word has length 46 [2022-01-18 05:39:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:39:14,372 INFO L470 AbstractCegarLoop]: Abstraction has 191781 states and 773147 transitions. [2022-01-18 05:39:14,372 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) [2022-01-18 05:39:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 191781 states and 773147 transitions. [2022-01-18 05:39:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:39:14,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:39:14,934 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] [2022-01-18 05:39:14,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 05:39:14,935 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:39:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:39:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash -69930492, now seen corresponding path program 21 times [2022-01-18 05:39:14,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:39:14,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412380825] [2022-01-18 05:39:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:39:14,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:39:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:39:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:39:14,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:39:14,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412380825] [2022-01-18 05:39:14,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412380825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:39:14,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:39:14,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:39:14,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806420327] [2022-01-18 05:39:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:39:14,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:39:14,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:39:14,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:39:14,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:39:14,987 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) [2022-01-18 05:39:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:39:18,060 INFO L93 Difference]: Finished difference Result 291444 states and 1166322 transitions. [2022-01-18 05:39:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:39:18,060 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 [2022-01-18 05:39:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:39:21,304 INFO L225 Difference]: With dead ends: 291444 [2022-01-18 05:39:21,304 INFO L226 Difference]: Without dead ends: 290940 [2022-01-18 05:39:21,306 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 [2022-01-18 05:39:21,318 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:39:21,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 258 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:39:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290940 states. [2022-01-18 05:39:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290940 to 193151. [2022-01-18 05:39:29,692 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) [2022-01-18 05:39:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193151 states to 193151 states and 778729 transitions. [2022-01-18 05:39:31,320 INFO L78 Accepts]: Start accepts. Automaton has 193151 states and 778729 transitions. Word has length 46 [2022-01-18 05:39:31,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:39:31,321 INFO L470 AbstractCegarLoop]: Abstraction has 193151 states and 778729 transitions. [2022-01-18 05:39:31,321 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) [2022-01-18 05:39:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 193151 states and 778729 transitions. [2022-01-18 05:39:31,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:39:31,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:39:31,875 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] [2022-01-18 05:39:31,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 05:39:31,875 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:39:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:39:31,876 INFO L85 PathProgramCache]: Analyzing trace with hash 720177954, now seen corresponding path program 22 times [2022-01-18 05:39:31,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:39:31,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382804791] [2022-01-18 05:39:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:39:31,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:39:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:39:31,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:39:31,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:39:31,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382804791] [2022-01-18 05:39:31,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382804791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:39:31,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:39:31,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:39:31,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275959870] [2022-01-18 05:39:31,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:39:31,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:39:31,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:39:31,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:39:31,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:39:31,928 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) [2022-01-18 05:39:35,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:39:35,053 INFO L93 Difference]: Finished difference Result 290239 states and 1157560 transitions. [2022-01-18 05:39:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:39:35,053 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 [2022-01-18 05:39:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:39:36,638 INFO L225 Difference]: With dead ends: 290239 [2022-01-18 05:39:36,638 INFO L226 Difference]: Without dead ends: 288247 [2022-01-18 05:39:36,638 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 [2022-01-18 05:39:36,638 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 [2022-01-18 05:39:36,639 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] [2022-01-18 05:39:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288247 states. [2022-01-18 05:39:43,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288247 to 190545. [2022-01-18 05:39:44,160 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) [2022-01-18 05:39:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190545 states to 190545 states and 767141 transitions. [2022-01-18 05:39:45,856 INFO L78 Accepts]: Start accepts. Automaton has 190545 states and 767141 transitions. Word has length 46 [2022-01-18 05:39:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:39:45,856 INFO L470 AbstractCegarLoop]: Abstraction has 190545 states and 767141 transitions. [2022-01-18 05:39:45,857 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) [2022-01-18 05:39:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 190545 states and 767141 transitions. [2022-01-18 05:39:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:39:47,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:39:47,191 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] [2022-01-18 05:39:47,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 05:39:47,192 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:39:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:39:47,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1029661538, now seen corresponding path program 23 times [2022-01-18 05:39:47,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:39:47,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891773069] [2022-01-18 05:39:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:39:47,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:39:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:39:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:39:47,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:39:47,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891773069] [2022-01-18 05:39:47,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891773069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:39:47,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:39:47,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:39:47,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192393324] [2022-01-18 05:39:47,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:39:47,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:39:47,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:39:47,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:39:47,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:39:47,284 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) [2022-01-18 05:39:50,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:39:50,908 INFO L93 Difference]: Finished difference Result 295536 states and 1171795 transitions. [2022-01-18 05:39:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:39:50,908 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 [2022-01-18 05:39:50,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:39:53,453 INFO L225 Difference]: With dead ends: 295536 [2022-01-18 05:39:53,453 INFO L226 Difference]: Without dead ends: 294600 [2022-01-18 05:39:53,454 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 [2022-01-18 05:39:53,454 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 221 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 05:39:53,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 428 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 05:39:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294600 states. [2022-01-18 05:40:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294600 to 201602. [2022-01-18 05:40:01,326 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) [2022-01-18 05:40:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201602 states to 201602 states and 801096 transitions. [2022-01-18 05:40:03,097 INFO L78 Accepts]: Start accepts. Automaton has 201602 states and 801096 transitions. Word has length 46 [2022-01-18 05:40:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:40:03,098 INFO L470 AbstractCegarLoop]: Abstraction has 201602 states and 801096 transitions. [2022-01-18 05:40:03,098 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) [2022-01-18 05:40:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 201602 states and 801096 transitions. [2022-01-18 05:40:03,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:40:03,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:40:03,698 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] [2022-01-18 05:40:03,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 05:40:03,699 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:40:03,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:40:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash -172253148, now seen corresponding path program 24 times [2022-01-18 05:40:03,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:40:03,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622652537] [2022-01-18 05:40:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:40:03,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:40:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:40:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:40:03,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:40:03,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622652537] [2022-01-18 05:40:03,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622652537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:40:03,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:40:03,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:40:03,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316317677] [2022-01-18 05:40:03,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:40:03,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:40:03,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:40:03,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:40:03,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:40:03,789 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) [2022-01-18 05:40:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:40:06,971 INFO L93 Difference]: Finished difference Result 301277 states and 1187823 transitions. [2022-01-18 05:40:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:40:06,972 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 [2022-01-18 05:40:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:40:08,893 INFO L225 Difference]: With dead ends: 301277 [2022-01-18 05:40:08,893 INFO L226 Difference]: Without dead ends: 300645 [2022-01-18 05:40:08,893 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 [2022-01-18 05:40:08,893 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:40:08,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 234 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:40:10,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300645 states. [2022-01-18 05:40:17,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300645 to 202082. [2022-01-18 05:40:18,354 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) [2022-01-18 05:40:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202082 states to 202082 states and 802488 transitions. [2022-01-18 05:40:19,956 INFO L78 Accepts]: Start accepts. Automaton has 202082 states and 802488 transitions. Word has length 46 [2022-01-18 05:40:19,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:40:19,956 INFO L470 AbstractCegarLoop]: Abstraction has 202082 states and 802488 transitions. [2022-01-18 05:40:19,956 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) [2022-01-18 05:40:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 202082 states and 802488 transitions. [2022-01-18 05:40:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:40:21,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:40:21,499 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] [2022-01-18 05:40:21,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 05:40:21,499 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:40:21,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:40:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash -204180158, now seen corresponding path program 25 times [2022-01-18 05:40:21,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:40:21,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667038292] [2022-01-18 05:40:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:40:21,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:40:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:40:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:40:21,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:40:21,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667038292] [2022-01-18 05:40:21,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667038292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:40:21,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:40:21,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:40:21,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089549143] [2022-01-18 05:40:21,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:40:21,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:40:21,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:40:21,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:40:21,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:40:21,553 INFO L87 Difference]: Start difference. First operand 202082 states and 802488 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) [2022-01-18 05:40:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:40:25,061 INFO L93 Difference]: Finished difference Result 298837 states and 1174975 transitions. [2022-01-18 05:40:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:40:25,061 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 [2022-01-18 05:40:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:40:28,387 INFO L225 Difference]: With dead ends: 298837 [2022-01-18 05:40:28,387 INFO L226 Difference]: Without dead ends: 295837 [2022-01-18 05:40:28,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:40:28,388 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 168 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:40:28,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 307 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:40:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295837 states. [2022-01-18 05:40:35,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295837 to 197472. [2022-01-18 05:40:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197472 states, 197471 states have (on average 3.9615184001701516) internal successors, (782285), 197471 states have internal predecessors, (782285), 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) [2022-01-18 05:40:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197472 states to 197472 states and 782285 transitions. [2022-01-18 05:40:37,819 INFO L78 Accepts]: Start accepts. Automaton has 197472 states and 782285 transitions. Word has length 46 [2022-01-18 05:40:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:40:37,819 INFO L470 AbstractCegarLoop]: Abstraction has 197472 states and 782285 transitions. [2022-01-18 05:40:37,819 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) [2022-01-18 05:40:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 197472 states and 782285 transitions. [2022-01-18 05:40:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:40:38,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:40:38,410 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] [2022-01-18 05:40:38,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 05:40:38,410 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:40:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:40:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1166835390, now seen corresponding path program 26 times [2022-01-18 05:40:38,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:40:38,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589969877] [2022-01-18 05:40:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:40:38,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:40:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:40:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:40:38,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:40:38,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589969877] [2022-01-18 05:40:38,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589969877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:40:38,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:40:38,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:40:38,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408352787] [2022-01-18 05:40:38,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:40:38,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:40:38,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:40:38,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:40:38,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:40:38,483 INFO L87 Difference]: Start difference. First operand 197472 states and 782285 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) [2022-01-18 05:40:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:40:41,717 INFO L93 Difference]: Finished difference Result 296493 states and 1155264 transitions. [2022-01-18 05:40:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:40:41,717 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 [2022-01-18 05:40:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:40:43,279 INFO L225 Difference]: With dead ends: 296493 [2022-01-18 05:40:43,279 INFO L226 Difference]: Without dead ends: 290089 [2022-01-18 05:40:43,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-18 05:40:43,281 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 213 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 05:40:43,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 347 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 05:40:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290089 states. [2022-01-18 05:40:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290089 to 200246. [2022-01-18 05:40:51,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200246 states, 200245 states have (on average 3.9184449049913854) internal successors, (784649), 200245 states have internal predecessors, (784649), 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) [2022-01-18 05:40:52,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200246 states to 200246 states and 784649 transitions. [2022-01-18 05:40:52,211 INFO L78 Accepts]: Start accepts. Automaton has 200246 states and 784649 transitions. Word has length 46 [2022-01-18 05:40:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:40:52,211 INFO L470 AbstractCegarLoop]: Abstraction has 200246 states and 784649 transitions. [2022-01-18 05:40:52,212 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) [2022-01-18 05:40:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 200246 states and 784649 transitions. [2022-01-18 05:40:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:40:53,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:40:53,655 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] [2022-01-18 05:40:53,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 05:40:53,655 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:40:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:40:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1214526016, now seen corresponding path program 27 times [2022-01-18 05:40:53,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:40:53,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097609481] [2022-01-18 05:40:53,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:40:53,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:40:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:40:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:40:53,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:40:53,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097609481] [2022-01-18 05:40:53,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097609481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:40:53,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:40:53,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:40:53,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107231501] [2022-01-18 05:40:53,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:40:53,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:40:53,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:40:53,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:40:53,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:40:53,710 INFO L87 Difference]: Start difference. First operand 200246 states and 784649 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) [2022-01-18 05:40:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:40:56,286 INFO L93 Difference]: Finished difference Result 293831 states and 1136141 transitions. [2022-01-18 05:40:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:40:56,286 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 [2022-01-18 05:40:56,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:40:58,552 INFO L225 Difference]: With dead ends: 293831 [2022-01-18 05:40:58,553 INFO L226 Difference]: Without dead ends: 290963 [2022-01-18 05:40:58,553 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 [2022-01-18 05:40:58,553 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 154 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:40:58,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 323 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:40:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290963 states. [2022-01-18 05:41:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290963 to 193515. [2022-01-18 05:41:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193515 states, 193514 states have (on average 3.905562388250979) internal successors, (755781), 193514 states have internal predecessors, (755781), 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) [2022-01-18 05:41:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193515 states to 193515 states and 755781 transitions. [2022-01-18 05:41:07,664 INFO L78 Accepts]: Start accepts. Automaton has 193515 states and 755781 transitions. Word has length 46 [2022-01-18 05:41:07,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:41:07,664 INFO L470 AbstractCegarLoop]: Abstraction has 193515 states and 755781 transitions. [2022-01-18 05:41:07,665 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) [2022-01-18 05:41:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 193515 states and 755781 transitions. [2022-01-18 05:41:08,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:41:08,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:41:08,442 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] [2022-01-18 05:41:08,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 05:41:08,443 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:41:08,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:41:08,443 INFO L85 PathProgramCache]: Analyzing trace with hash -555247714, now seen corresponding path program 28 times [2022-01-18 05:41:08,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:41:08,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134331475] [2022-01-18 05:41:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:41:08,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:41:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:41:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:41:08,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:41:08,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134331475] [2022-01-18 05:41:08,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134331475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:41:08,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:41:08,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:41:08,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3431864] [2022-01-18 05:41:08,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:41:08,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:41:08,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:41:08,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:41:08,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:41:08,551 INFO L87 Difference]: Start difference. First operand 193515 states and 755781 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) [2022-01-18 05:41:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:41:12,540 INFO L93 Difference]: Finished difference Result 283290 states and 1078797 transitions. [2022-01-18 05:41:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:41:12,541 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 [2022-01-18 05:41:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:41:14,832 INFO L225 Difference]: With dead ends: 283290 [2022-01-18 05:41:14,832 INFO L226 Difference]: Without dead ends: 280266 [2022-01-18 05:41:14,832 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 [2022-01-18 05:41:14,833 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 211 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 05:41:14,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 464 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 05:41:16,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280266 states. [2022-01-18 05:41:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280266 to 193510. [2022-01-18 05:41:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193510 states, 193509 states have (on average 3.849350676195939) internal successors, (744884), 193509 states have internal predecessors, (744884), 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) [2022-01-18 05:41:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193510 states to 193510 states and 744884 transitions. [2022-01-18 05:41:23,751 INFO L78 Accepts]: Start accepts. Automaton has 193510 states and 744884 transitions. Word has length 46 [2022-01-18 05:41:23,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:41:23,751 INFO L470 AbstractCegarLoop]: Abstraction has 193510 states and 744884 transitions. [2022-01-18 05:41:23,752 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) [2022-01-18 05:41:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 193510 states and 744884 transitions. [2022-01-18 05:41:24,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:41:24,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:41:24,263 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] [2022-01-18 05:41:24,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 05:41:24,264 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:41:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:41:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 690616134, now seen corresponding path program 29 times [2022-01-18 05:41:24,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:41:24,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074070720] [2022-01-18 05:41:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:41:24,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:41:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:41:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:41:24,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:41:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074070720] [2022-01-18 05:41:24,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074070720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:41:24,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:41:24,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:41:24,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463414589] [2022-01-18 05:41:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:41:24,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:41:24,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:41:24,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:41:24,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:41:24,316 INFO L87 Difference]: Start difference. First operand 193510 states and 744884 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) [2022-01-18 05:41:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:41:27,458 INFO L93 Difference]: Finished difference Result 270531 states and 1004554 transitions. [2022-01-18 05:41:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:41:27,458 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 [2022-01-18 05:41:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:41:28,778 INFO L225 Difference]: With dead ends: 270531 [2022-01-18 05:41:28,778 INFO L226 Difference]: Without dead ends: 262632 [2022-01-18 05:41:28,779 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 [2022-01-18 05:41:28,779 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 208 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:41:28,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 366 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:41:29,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262632 states. [2022-01-18 05:41:34,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262632 to 177887. [2022-01-18 05:41:35,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177887 states, 177886 states have (on average 3.7640623770279844) internal successors, (669574), 177886 states have internal predecessors, (669574), 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) [2022-01-18 05:41:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177887 states to 177887 states and 669574 transitions. [2022-01-18 05:41:36,647 INFO L78 Accepts]: Start accepts. Automaton has 177887 states and 669574 transitions. Word has length 46 [2022-01-18 05:41:36,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:41:36,647 INFO L470 AbstractCegarLoop]: Abstraction has 177887 states and 669574 transitions. [2022-01-18 05:41:36,647 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) [2022-01-18 05:41:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 177887 states and 669574 transitions. [2022-01-18 05:41:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:41:37,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:41:37,174 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] [2022-01-18 05:41:37,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 05:41:37,174 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:41:37,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:41:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash -751832516, now seen corresponding path program 30 times [2022-01-18 05:41:37,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:41:37,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466995704] [2022-01-18 05:41:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:41:37,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:41:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:41:37,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:41:37,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:41:37,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466995704] [2022-01-18 05:41:37,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466995704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:41:37,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:41:37,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:41:37,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634102348] [2022-01-18 05:41:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:41:37,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:41:37,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:41:37,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:41:37,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:41:37,225 INFO L87 Difference]: Start difference. First operand 177887 states and 669574 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) [2022-01-18 05:41:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:41:39,449 INFO L93 Difference]: Finished difference Result 252067 states and 931157 transitions. [2022-01-18 05:41:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:41:39,450 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 [2022-01-18 05:41:39,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:41:41,286 INFO L225 Difference]: With dead ends: 252067 [2022-01-18 05:41:41,286 INFO L226 Difference]: Without dead ends: 251851 [2022-01-18 05:41:41,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:41:41,287 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 181 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:41:41,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 336 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:41:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251851 states. [2022-01-18 05:41:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251851 to 177835. [2022-01-18 05:41:46,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177835 states, 177834 states have (on average 3.7627337854403544) internal successors, (669142), 177834 states have internal predecessors, (669142), 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) [2022-01-18 05:41:48,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177835 states to 177835 states and 669142 transitions. [2022-01-18 05:41:48,479 INFO L78 Accepts]: Start accepts. Automaton has 177835 states and 669142 transitions. Word has length 46 [2022-01-18 05:41:48,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:41:48,479 INFO L470 AbstractCegarLoop]: Abstraction has 177835 states and 669142 transitions. [2022-01-18 05:41:48,479 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) [2022-01-18 05:41:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 177835 states and 669142 transitions. [2022-01-18 05:41:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:41:48,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:41:48,945 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] [2022-01-18 05:41:48,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 05:41:48,945 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:41:48,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:41:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2000978492, now seen corresponding path program 31 times [2022-01-18 05:41:48,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:41:48,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192264163] [2022-01-18 05:41:48,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:41:48,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:41:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:41:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:41:49,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:41:49,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192264163] [2022-01-18 05:41:49,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192264163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:41:49,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:41:49,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:41:49,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043382148] [2022-01-18 05:41:49,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:41:49,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:41:49,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:41:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:41:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:41:49,007 INFO L87 Difference]: Start difference. First operand 177835 states and 669142 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) [2022-01-18 05:41:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:41:51,777 INFO L93 Difference]: Finished difference Result 256522 states and 945678 transitions. [2022-01-18 05:41:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:41:51,777 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 [2022-01-18 05:41:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:41:53,693 INFO L225 Difference]: With dead ends: 256522 [2022-01-18 05:41:53,694 INFO L226 Difference]: Without dead ends: 255610 [2022-01-18 05:41:53,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-01-18 05:41:53,695 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 223 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:41:53,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 384 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:41:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255610 states. [2022-01-18 05:41:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255610 to 176590. [2022-01-18 05:42:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176590 states, 176589 states have (on average 3.7559021230087946) internal successors, (663251), 176589 states have internal predecessors, (663251), 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) [2022-01-18 05:42:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176590 states to 176590 states and 663251 transitions. [2022-01-18 05:42:00,925 INFO L78 Accepts]: Start accepts. Automaton has 176590 states and 663251 transitions. Word has length 46 [2022-01-18 05:42:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:42:00,925 INFO L470 AbstractCegarLoop]: Abstraction has 176590 states and 663251 transitions. [2022-01-18 05:42:00,926 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) [2022-01-18 05:42:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 176590 states and 663251 transitions. [2022-01-18 05:42:02,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:42:02,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:42:02,264 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] [2022-01-18 05:42:02,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 05:42:02,265 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:42:02,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:42:02,265 INFO L85 PathProgramCache]: Analyzing trace with hash -165717444, now seen corresponding path program 32 times [2022-01-18 05:42:02,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:42:02,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052758485] [2022-01-18 05:42:02,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:42:02,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:42:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:42:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:42:02,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:42:02,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052758485] [2022-01-18 05:42:02,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052758485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:42:02,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:42:02,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 05:42:02,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873488539] [2022-01-18 05:42:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:42:02,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 05:42:02,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:42:02,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 05:42:02,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:42:02,324 INFO L87 Difference]: Start difference. First operand 176590 states and 663251 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 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) [2022-01-18 05:42:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:42:04,550 INFO L93 Difference]: Finished difference Result 245303 states and 906317 transitions. [2022-01-18 05:42:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 05:42:04,550 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 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 [2022-01-18 05:42:04,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:42:05,669 INFO L225 Difference]: With dead ends: 245303 [2022-01-18 05:42:05,669 INFO L226 Difference]: Without dead ends: 243275 [2022-01-18 05:42:05,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2022-01-18 05:42:05,670 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 251 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 05:42:05,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 440 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 05:42:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243275 states. [2022-01-18 05:42:11,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243275 to 175768. [2022-01-18 05:42:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175768 states, 175767 states have (on average 3.7492646514988595) internal successors, (658997), 175767 states have internal predecessors, (658997), 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) [2022-01-18 05:42:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175768 states to 175768 states and 658997 transitions. [2022-01-18 05:42:12,552 INFO L78 Accepts]: Start accepts. Automaton has 175768 states and 658997 transitions. Word has length 46 [2022-01-18 05:42:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:42:12,552 INFO L470 AbstractCegarLoop]: Abstraction has 175768 states and 658997 transitions. [2022-01-18 05:42:12,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 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) [2022-01-18 05:42:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 175768 states and 658997 transitions. [2022-01-18 05:42:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:42:13,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:42:13,890 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] [2022-01-18 05:42:13,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 05:42:13,890 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:42:13,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:42:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1585157342, now seen corresponding path program 33 times [2022-01-18 05:42:13,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:42:13,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389286107] [2022-01-18 05:42:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:42:13,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:42:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:42:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:42:13,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:42:13,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389286107] [2022-01-18 05:42:13,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389286107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:42:13,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:42:13,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 05:42:13,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380541742] [2022-01-18 05:42:13,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:42:13,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 05:42:13,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:42:13,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 05:42:13,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:42:13,964 INFO L87 Difference]: Start difference. First operand 175768 states and 658997 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 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) [2022-01-18 05:42:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:42:16,369 INFO L93 Difference]: Finished difference Result 247402 states and 911757 transitions. [2022-01-18 05:42:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 05:42:16,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 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 [2022-01-18 05:42:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:42:18,135 INFO L225 Difference]: With dead ends: 247402 [2022-01-18 05:42:18,135 INFO L226 Difference]: Without dead ends: 245974 [2022-01-18 05:42:18,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-01-18 05:42:18,136 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 300 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 05:42:18,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 585 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 05:42:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245974 states. [2022-01-18 05:42:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245974 to 183527. [2022-01-18 05:42:23,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183527 states, 183526 states have (on average 3.722627856543487) internal successors, (683199), 183526 states have internal predecessors, (683199), 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) [2022-01-18 05:42:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183527 states to 183527 states and 683199 transitions. [2022-01-18 05:42:25,326 INFO L78 Accepts]: Start accepts. Automaton has 183527 states and 683199 transitions. Word has length 46 [2022-01-18 05:42:25,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:42:25,326 INFO L470 AbstractCegarLoop]: Abstraction has 183527 states and 683199 transitions. [2022-01-18 05:42:25,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 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) [2022-01-18 05:42:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 183527 states and 683199 transitions. [2022-01-18 05:42:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 05:42:25,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:42:25,800 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] [2022-01-18 05:42:25,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 05:42:25,800 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-01-18 05:42:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:42:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 521148508, now seen corresponding path program 34 times [2022-01-18 05:42:25,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:42:25,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749978110] [2022-01-18 05:42:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:42:25,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:42:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:42:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:42:25,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:42:25,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749978110] [2022-01-18 05:42:25,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749978110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:42:25,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:42:25,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:42:25,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882469714] [2022-01-18 05:42:25,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:42:25,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:42:25,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:42:25,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:42:25,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:42:25,857 INFO L87 Difference]: Start difference. First operand 183527 states and 683199 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) [2022-01-18 05:42:28,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:42:28,085 INFO L93 Difference]: Finished difference Result 261534 states and 955866 transitions. [2022-01-18 05:42:28,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:42:28,085 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 [2022-01-18 05:42:28,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:42:29,916 INFO L225 Difference]: With dead ends: 261534 [2022-01-18 05:42:29,916 INFO L226 Difference]: Without dead ends: 261070 [2022-01-18 05:42:29,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:42:29,917 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 193 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:42:29,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 322 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:42:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261070 states. Received shutdown request... [2022-01-18 05:42:31,396 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-01-18 05:42:31,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 05:42:31,396 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2022-01-18 05:42:31,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 7 remaining) [2022-01-18 05:42:31,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (4 of 7 remaining) [2022-01-18 05:42:31,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-01-18 05:42:31,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-01-18 05:42:31,398 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION (1 of 7 remaining) [2022-01-18 05:42:31,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATION (0 of 7 remaining) [2022-01-18 05:42:31,401 INFO L732 BasicCegarLoop]: Path program histogram: [34] [2022-01-18 05:42:31,403 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 05:42:31,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 05:42:31,405 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 [2022-01-18 05:42:31,406 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 05:42:31 BasicIcfg [2022-01-18 05:42:31,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 05:42:31,406 INFO L158 Benchmark]: Toolchain (without parser) took 555474.47ms. Allocated memory was 364.9MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 327.1MB in the beginning and 9.9GB in the end (delta: -9.5GB). Peak memory consumption was 6.8GB. Max. memory is 16.0GB. [2022-01-18 05:42:31,406 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 364.9MB. Free memory is still 328.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:42:31,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.56ms. Allocated memory is still 364.9MB. Free memory was 326.9MB in the beginning and 325.5MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 05:42:31,407 INFO L158 Benchmark]: Boogie Preprocessor took 12.48ms. Allocated memory is still 364.9MB. Free memory was 325.5MB in the beginning and 324.5MB in the end (delta: 957.9kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:42:31,407 INFO L158 Benchmark]: RCFGBuilder took 222.00ms. Allocated memory is still 364.9MB. Free memory was 324.4MB in the beginning and 313.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 05:42:31,407 INFO L158 Benchmark]: TraceAbstraction took 555213.34ms. Allocated memory was 364.9MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 313.2MB in the beginning and 9.9GB in the end (delta: -9.6GB). Peak memory consumption was 6.7GB. Max. memory is 16.0GB. [2022-01-18 05:42:31,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 364.9MB. Free memory is still 328.2MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 22.56ms. Allocated memory is still 364.9MB. Free memory was 326.9MB in the beginning and 325.5MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 12.48ms. Allocated memory is still 364.9MB. Free memory was 325.5MB in the beginning and 324.5MB in the end (delta: 957.9kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 222.00ms. Allocated memory is still 364.9MB. Free memory was 324.4MB in the beginning and 313.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 555213.34ms. Allocated memory was 364.9MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 313.2MB in the beginning and 9.9GB in the end (delta: -9.6GB). Peak memory consumption was 6.7GB. Max. memory is 16.0GB. * 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 98 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 555.1s, OverallIterations: 34, TraceHistogramMax: 1, PathProgramHistogramMax: 34, EmptinessCheckTime: 34.1s, AutomataDifference: 198.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5523 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5523 mSDsluCounter, 9181 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11781 mSDsCounter, 2165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17902 IncrementalHoareTripleChecker+Invalid, 20067 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2165 mSolverCounterUnsat, 2107 mSDtfsCounter, 17902 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230772occurred in iteration=12, InterpolantAutomatonStates: 325, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 317.2s AutomataMinimizationTime, 34 MinimizatonAttempts, 3252560 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1564 NumberOfCodeBlocks, 1564 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1530 ConstructedInterpolants, 0 QuantifiedInterpolants, 4890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 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